Pr oe, Th, yee = ats er 7 ras yee. s Epes : ee! S DEN 00 et ‘23! . “ * ee Y " ate > : 5 : - “ : tes Sa reentkh eon ees : 4 , ’ a : inl a aS ant ota Nee CEOS sat hale? fie arte Die an he, eee Se a wine’ as § ‘pergay on ‘ ~ Sees Soe, eda) =a) aoe Sree Ses ses ets, Aer SOO Te TaN eae 7 atistertaatartencn Spier iain tee LIBR ARY OF ¢ CONGR ESS, Ehof. Bez ae S2SS02O20006' NITED ST ATES OF AME RICA, @2626286GO080020030808280/ $ @ é @ ¢ @ ° @ ¢ ail é U 2 wr On a moe Dy as, vet at . aed ~~ > ae af ree ie! * > ‘ es ee PRACTICAL AND SCIENTIFIC FRUIT CULTURE. PRACTICAL AND SCIENTIFIC FRUIT CULTURE. 183y'4 CHARLES R. BAKER, OF THE DORCHESTER NURSERIES. ILLUSTRATED. BOSTON: LEE AND SHEPARD. LONDON: TRUBNER AND CO. 1866. WV Entered according to Act of Congress, in the year 1866, By CHARLES R. BAKER, In the Clerk’s Office of the District Court for the District of Massachusetts. ¢ “ee ANDOVER: ~ ea STEREOTYPED BY WARREN F. DRAPER. pe Beg OE \o Presswork by John Wilson and Sons. ‘Tia tS) Vor ks Ee REE 18 RESPECTFULLY INSCRIBED TO AMERICAN FRUIT-GROWERS, IN THE HOPE THAT IT MAY ENCOURAGE AND ASSIST BEGINNERS, AND BE FOUND CONFORMED TO THE EXPERIENCE OF THE BEST CULTIVATORS, xy the Author. ees ¥ iz Py Ea 8. ay ett: there are a number of excellent works descriptive of fruits, and compiled from ripe experience and large observation, yet there are few, if any, which give in detail the arts of culti- vation. The minutiae and practical application of these arts become more important as the interest in fruit- culture increases, and the profits are understood. On these topics so much has already been published as to prevent any demand for additional remark. But in the progress of our legitimate business a multitude of inquiries are annually proposed, by cus- tomers and others, relative to the various branches 12 PREFACE. of these arts, which are important to their success, but to which they cannot readily obtain satisfactory replies. Thus we have felt ourselves called upon to submit the results of our researches and experi- ence to the public in print, hoping that the present volume, though not perfect and complete, may yet be acceptable and useful to beginners in the culti- vation of the garden, the orchard, and the vineyard. And, lest our connection with the Hon. Marsuatt P. Wiper, of enviable renown for his contributions to American Pomology, should lead our readers or the public to think him responsible for what we have written, we feel it to be due to his official position, and to our pleasant and intimate relation to him, to say that he is in no degree accountable for any peculiar sentiments herein expressed. We have received from him many valuable sug- gestions, and are largely indebted to his library and PREFACE. 13 mature knowledge; and deeply regret that his feeble health, during the preparation of this work, has to a great extent deprived us of his counsel, and the benefits which we and the public might otherwise have derived from his personal revision of our manuscript. For the original suggestion which led to the preparation of this volume, I gratefully acknowl- edge my indebtedness to my esteemed friend H. F. Durant, Esq.; also to my beloved father, Rev. A. R. Baker, for additional assistance. — To the following works and authors I am also indebted for many valuable hints, generally indicated in the text: The Gardener’s Chronicle. Loudon’s Gardeners’ Magazine. Loudon’s Encyclopedia of Gardening. 2 14 PREFACE. Johnston’s Agticultural Chemistry. Stéckhardt’s Field Chemistry. Johnston’s Farmers’ Encyclopedia. Lindley’s Introduction to Botany. Leibig’s Natural Laws of Husbandry. Tull’s Horse-Hoe Husbandry. French’s Land Drainage. Girdwood’s Encyclopedia. Miiller’s Meteorology. Blodgett’s Climatology. Annals of Natural History. Espy on Storms. Revue Horticole. Transactions of the London Horticultural Society. Rivers’s Miniature Garden. Insects Injurious to Vegetation. Transactions of the American Pomological Society. Patent Office Reports. The Philosophical Magazine. PREFACE. AS Squarery’s Agricultural Chemistry. Quarterly Journal of Agriculture. Geological Survey of Massachusetts. Annales de la Chimie. Sproule’s Treatise on Agriculture. Monographie des Greffes. Bibliotheca Agraria. De Re Rustica. The Theory of Horticulture. Outlines of Flemish Husbandry. Davy’s Agricultural Chemistry. Electricity in Theory and Practice. Jenyns’s Observations upon Meteorology. Synopsis of North American Fungi. De Candolle’s Vegetable Physiology. Botanische Zeitung. 1854. Physique des Arbres. 1758. Comptes Rendus. 1853. Introduction to Chryptogamic Botany. 16 PREFACE. Fitche’s Noxious Insects, Published in Transactions of New York State Agricultural Society. Address to the Meteorological Society of Scotland, by Dr. Jas. Stark. We also acknowledge the kind and generous assistance of Pror. Giover of the Maryland Insti- tute. GON TENTS. CHAPTER I. METEOROLOGICAL AGENTS. Altitude — Aspect or exposure — Contiguous bodies of water — Nature of storms— Climate of eastern and western districts compared — Snow storms— Severe wind — Stagnant air— Aqueous vapor — Heat — Light — The limits of the vine — Tables — Cold — Elec- tricity — Different exposures; as the summit of hills, northern, southern ; ; 3 ‘ . F Z . F 25 CHAPTER II. ORIGIN AND PROPERTIES OF SOILS. Soils the result of disintegration — Causes stated by Sir H. Davy — Boussingault — Hitchcock — Alluvial agencies. Properties: Spe- cific gravity — Affinity for moisture — Absorption of moisture from the air — Capillary attraction — State of division — Cohesion and adhesion — Absorption of gases from the atmosphere — absorption and retention of heat . : i P ; 4 P « 49 O* 18 CONTENTS. CHAPTER III. CLASSIFICATION AND ADAPTATION OF SOILS. Section I. Classification of soils; Section II. Adaptation to different fruits —Varieties of the apple, apricot, berberry, cherry, currant, fig, gooseberry, grape, peach, and nectarine — Varieties of the pear, plum, quince, raspberry, strawberry ; ; 4 ; 79 CHAPTER IV. DRAINING THE SOIL. Method by which the soil is supplied with moisture: rain, springs — Description of different strata — Capillary attraction — Methods by which water is removed: running off its surface — Evaporation — Percolating through its substance — What lands require drainage — The direction of the drains — The distance —'The depth — The material to be used —Number of tile to the acre— Manner of operation — The effects of drainage: promoting pulverization — Prevention of injury by drought — Increase of the absorption of moisture — Ventilation — Permitting the warm spring showers to enter the soil— Freezing the land deeper — Deepening the soil — Destroying weeds — Causing a more hardy growth— Production becomes more certain . : a aR ‘ b ‘ i 90 CONTENTS. 19 CHAPTER V. PULVERIZATION. A crumbling consistency of soils necessary — The importance of pul- verization — Stiffness of clays — The non-retention of sandy soils — Coldness of heavy earths — Summers — Injurious effects of drought — Example of proper valuation of arable soil— Theory of Jethro Tull — Effect of insects upon pulverization — Depth — Digging circles around trees deprecated — Power of extension by roots — Deep cultivation affords fresh earth — Manner of operation — The season — Results of it: rapid absorption of moisture — Free admis- sion of the air — The mixture of earths — The destruction of insects — The increase of heat 5 - : 2 f 126 CHAPTER VI. FERTILIZATION. Selective power of plants — Form in which food is taken up — Ex- cretion — Circulation of the sap — Organic substances : Oxygen, hy- drogen, carbon, nitrogen — Inorganic substances — Manures adapted to different soils: to clays, to peaty soils, to sandy lands — Plants to be used in green-manuring — Application of manures . , 164 20 CONTENTS. CHAPTER VII. SELECTION OF VARIETIES. Evils of indiscriminate selection — Fruits suitable for the amateur, for family use, for the market — Catalogue of the different varieties adapted to the different sections of the country — The best six, twelve, twenty, or one hundred sorts, for each state . : 201 CHAPTER VIII. SELECTION, ARRANGEMENT, AND TRANSPLANTATION. Section I. Selection of the tree: The apple — Root-grafted trees — Height of the tree no criterion of its value — Where they should limb — The peach— The vine— The currant and gooseberry — The strawberry, raspberry, and blackberry. Section II. Arrange- ment : Intensive planting — A garden of one square rod — A garden of sixteen square rods — Apple orchards — Square planting for the pear — Quincunx — Distances, and number of trees upon an seen Section III. The transplantation: Season of — Conditions most favorable to — Depth of — The dwarf pear — Manner of operation — The movement of large trees by machinery .» ~. . 271 CONTENTS. 21 CHAPTER IX. PRUNING AND TRAINING. The amputation of the limbs of a tree based upon scientific principles — Facts necessary to be kept in mind: Importance of a sharp knife — The method of making the cut— Severe pruning productive of vigor and sterility — The removal of a part of the wood of a weak plant strengthens the remainder — Importance of sunshine to all parts of the tree — Circulation of air — Distinguishing the peculiarities of the variety — The prevention and cure of disease — The season: Spring and summer — Pruning after transplanting — Training the peach and nectarine: Seymour’s system— Oblique rod — Oblique double rod — Double oblique rod— Standard — Horizontal trellis- training — The apricot — The pear— Standard, quenouille, wineglass, etc. — The cherry — The vine — The system of the Ionian islands — Simple cane — Simple thomery. Plan practised in Ohio — The cur- rant-—— The gooseberry — The raspberry — The blackberry — The strawberry — Root-pruning . ‘ : . - : : 301 CHAPTER X. SUMMER CULTIVATION. Removal of moss and decayed bark — Loosening the soil — Mulching — Thinning the fruit — Ringing — Watering, tying, supporting, and gathering the fruit — Preservation = : A 4 , 345 22 CONTENTS. CHAPTER XI. GRAFTING AND BUDDING. Influence of the stock— Of the scion —The season — The wax — Methods — The cleft — Gerffe a un seul rameau, dont une partie du sujet est coupee en biseau — The crown — Tubular budding with dor- mant eyes — The peg — Greffe sylvain, renewal, side, whip — Greffe ferari de Thouin — Grating fruit-spurs -— Inarching — Greffe mor- ceau — Common inarching g, in the axis of the leaf, square bud, tu- bular bud — Greffe en ecusson — The budding-machine — For immediate fruiting — Renewal — Grafting the vine — Midsummer — Embryonic . ° ; Bhai : - - : : 364 CHAPTER XII THE PRODUCTION OF NEW VARIETIES. Change in the vegetable world — Effect of climate, soil, and position — Cultivation, degeneracy, or deterioration — Decrepitude — Methods of production — Selection — Van Mon’s theory as distinguished from it — Cultivated fruits not descended from their mild types — Impor- tance of securing seed from a young tree — Hybridization — Exper- iments of Kolreuter, Herbert, Knight, Gertner, Lindley, Purkinje, Mirbel, Adolphe Brogniart, Conrad Sprengel, Cassini, Alphonse de Candolle, Schleiden, Fritsche, Thwaites, Mr. Rogers — Manner of OPOPAHOR 2. sg ee ee RR CONTENTS. 23 CHAPTER XIII. THE DISEASES OF FRUIT-BEARING PLANTS. Section I. General observations — Berkeley’s theory of classification — Weigmann — Causes of disease —Insects. Section II. Diseases of the apple — of the leaf— Fall of the leaf— Fungi — Clados porium dendriticum, ceratites, raestelia — Insects — Apple-tree louse, com- mon apple-tree caterpillar, the oak-tree caterpillar, the vaporer moth, the palmer worm, the hag moth, the unicorn moth, the canker worm, the handmaid moth, the dotted apple-leaf worm; of the fruit and flower — Sterility — Immaturity of the fruit— Insects — The saw- fly, the midge, the codling moth, the rose-bug ; g ; of the stem — Insects — The goat moth, the common borer, root-blight insect, the snapping beetle, the bark louse, the locust of the seventeenth year; of the tree generally — Profusion of sap, hunger, stagnation from transplan- tation, canker, freezing, splitting, wind shakes, dropsy, sun-strokes, wounds, lichens, vitiation of the sap. Section III. Diseases of the pear — Of the leaf — American pear blight — Insects — The gold- smith beetle, the red mite, the fly, the lyda, the astyages, the hispa quadrata, fungi, discolorations; of the fruit and flower — Rotting at the core, induration, loss of bloom, ete. ; of the stem — Root blight — Insects — The blight beetle, the bark louse, fungi, ete. Section IV. Diseases of the peach — The dotted apple-leaf worm, premature fall of the fruit, the borer, gumming, etc. Section V. Diseases of the plum — Plum louse, curculio, the plum wart, etc. Section VI. 24. CONTENTS. Diseases of the cherry — The louse, the May beetle, etc. Section VII. Diseases of the gooseberry — The caterpillar, the swallow-tailed moth, the midge, the mildew, etc. Section VIII. Diseases of the currant — Fall of the leaf, the borer, ete. Section IX. Diseases of the raspberry — The grub, etc. Section X. Diseases of the vine — Of the leaf—Insects— The vine plume, the saw-fly, the anomola vitis, the spotted beetle, the pyralis, the procris Americana, the haltica chalybea, the leaf hopper, the bombyx quata, the philampelus, the choerocamepa, the rhynchitis, fungi, common mildew, erysiphe, botrytis; of the fruit and flower — The rose-bug, shanking . 421 FRUIT CULTURE. CHAPTER I. METEOROLOGICAL AGENTS. ALTITUDE — ASPECT OR EXPOSURE — CONTIGUOUS BODIES OF WATER— NATURE OF STORMS — CLIMATE OF EASTERN AND WESTERN DISTRICTS COMPARED — SNOW STORMS — SEVERE WIND — STAGNANT AIR — AQUE- OUS VAPOR — HEAT — LIGHT — THE LIMITS OF THE VINE —TABLES — COLD — ELECTRICITY — DIFFERENT EXPOSURES: AS THE SUMMIT OF HILLS, NORTHERN, SOUTHERN. HE meteorological agents which affect the pro- duction of fruit have never received from hor- ticultural writers the notice which they deserve. They are necessarily more recondite than the qual- ities or condition of the soil; and because less evident, they have been passed over in silence; yet the importance of understanding atmospheric phe- nomena is, in some respects, even greater than a knowledge of the soil. | In one part of a country a certain fruit is utterly worthless; its wood is killed by the winter, and its skin becomes spotted and cracked in summer. This same variety may, in another district, be universally fair and delicious, while its wood remains as free from damage in the winter as the native trees of 3 26 ALTITUDE. the forest. This phenomenon is often noticed upon different sides of the same hill. In the latter case, it cannot certainly be the soil which causes such varied results; but we must refer them to atmos- pheric agencies. Among the most important facts to be determined is the effect of different altitudes upon vegetation. It does not require more than a child’s discrimina- tion to discover that the temperature upon the sum- mit of a mountain is much lower than at its base, and therefore that a fruit which flourishes at its foot would not do so if planted in the most pro- pitious place upon its top. Naturalists tell us that if we start where the first glimpses of vegetation appear at the frigid zone, and approach the tropics, we shall perceive all the different stages of the vege- table creation, in the same order in which they were placed upon the earth. As we ascend a mountain the effect is reversely the same. Hence it becomes evident that to determine properly the limit for the cultivation of a plant, it would be useless to draw parallel lines, like those which we use for latitude, because the same line would pass over valley and mountain in which the temperature would vary several degrees. In assigning a position to the isothermal lines, now quite common in geographical maps, there are several other facts to be considered. Aspect, or exposure, exerts a powerful influence EXPOSURE. 27 upon fruit cultivation. For instance, while some varieties of grapes will not ripen if exposed to the north or west, they mature quite early on a south-_ ern or eastern slope. ‘Therefore, if an isothermal line is to be an infallible guide, it should run down on the latter, and up on the former. Some slopes are open to furious and chilling winds from the cold regions, which tend to depress the line. These are among the more general facts to be considered. It can readily be seen that perfect ac- curacy must be practically impossible. The culti- vator must exercise a wise judgment with regard to these principles, or his efforts will not be crowned with complete success. Among the more general facts which should guide us in determining the limits of the successful cultivation of different fruits, and the proper selec- tion of exposure for each variety, let us notice the effects of large, contiguous bodies of water ; or the difference between island or coast, and inland or continental climate,—a difference which is very striking in respect to the limits of cultivating a particular plant. ‘This is owing to the greater ease with which land rather than water absorbs and radi- ates heat. Land becomes warm much sooner, but falls in temperature with equal rapidity. On the contrary, the sea is not so soon heated, on account of its brilliant surface, which reflects the rays of the sun; neither is it so soon cooled, owing to the great 28 BODIES OF WATER. amount of its specific heat. While the land changes its temperature very considerably with the diurnal © and annual alternations, the sea does so to a less degree. During the night, the effect of water upon the coast is to warm, and in the day to cool the land. The same results are produced on the change of the seasons: both the spring and autumn are later. Places on the shore of large bodies of water have frequently a clouded sky, and these arrest the rays of heat from above, as well as prevent its loss by radiation from beneath. Therefore, island or coast climates are never subject to such extremes of weather as are those of the interior. M. Boussin- eault states that the temperature of London and Paris is about the same, while the latitude of the latter is nearly three degrees lower. As we travel from the coast toward the interior, the difference between the mean temperature of summer and winter is much greater than on the seaboard. Rivers, lakes, and ponds possess to some extent the same power of equalizing temperature, according to their size; and therefore we can per- ceive the great value of isothermal lines established by Baron Von Humboldt, which are a guide to the general temperature, independent of the parallels of latitude. By reference to an isothermal map which gives the mean temperature of the United States for the four seasons, we shall ascertain that this mean NATURE OF STORMS. 20 degree is the same at Fort Snelling, Minnesota, and at Boston; while there is a difference in the latitude of these places of two and a half degrees. The autumn of the former is colder than that of Boston; therefore, 1f we possessed no more information, we should determine that the growing season was shorter and colder than that of the Atlantic coast, and that fruits which succeed near the latter would not flourish in Minnesota. But we must remem- ber that the effect of ocean upon the coast in the spring is to cool it; and, consequently, that the ground at Fort Snelling becomes sensible of the warm spring sun much quicker, and is free from the cooling influence of the water all summer. The mean spring temperature is like that of Southern Connecticut or New York. Those fruits which hardly reach maturity in the Northern Atlantic States, ripen fully and much earlier there, because the heat of spring and summer is so much more intense. From the manner in which altitude, exposure, and the presence of bodies of water affect climate, the importance of considering atmospheric influences in the selection of sites for our orchards must have become evident. Let us investigate further the gen- eral phenomena which produce good or bad results in the growth of fruits. 1. The nature of storms. The difference in these 9 3* 30 STORMS. and in the climate east and west of the Rocky Moun- tains is very marked. The prevailing winds of our continent are western. Although the eastern dis- trict comprises a most extensive area in. several latitudes, yet its general features are similar. It is subject to great extremes, —a cold winter, and a semi-tropical summer. ‘The variety of its indigenous plants is very great. The vapor arising from the Gulf of Mexico is condensed as it passes over the land, and, falling until it is taken by this western current, it is spread over the whole eastern portion of the continent. When these winds are most severe, as in the autumn, when the trees are laden with fruit, as well as in early spring, the importance of shelter in exposed positions will readily occur to every practical cultivator. But this will be consid- ered hereafter. While there are some benefits resulting from the variableness of temperature in the Eastern States, there are also serious disadvantages, — such as the destruction of the fruit-buds of the most tender species and varieties in the more northern States, and the encouragement of the fungi, as well as of other diseases incident to a sudden check or accel- eration of the sap-flow. On the contrary, the climate of the Pacific coast is characterized by great equanimity. If the dis- eases resulting from sudden changes and extremes of temperature exist at all, it is in their most ameli- SNOW AND ICE. oi orated form. ‘The temperate climate of Spain finds there a rival; and the wine-grapes of Germany, Italy, and even those of our hothouses, succeed there per- fectly. The thermometer seldom falls below forty- seven degrees Fahrenheit, or rises above sixty. 2. Snow storms. ‘The benefits and evils resulting from these are about equal. Upon strawberries the effect is decidedly good, as it defends the tender crown-buds which are to produce the fruit of the next year. The result is the same upon all small fruits, such as currants, gooseberries, and raspber- ries, as it modifies the extremes of temperature. When the snow has melted, if the water stands upon the gound, the subsequent effect may be dis- astrous: it becomes frozen, and settles down upon strawberries, frequently occasicning their death. The cause may not be uniform ; sometimes it may be ow- ing to the exclusion of air: and yet it is difficult to understand that plants in a dormant or frozen state should require air. If the snow first melts, then freezes, it forms a crust of ice, that may act as a lens to concentrate the sun’s rays and burn the plant. The presence of ice upon the ground about all trees or plants is very dangerous. ‘The radiation of heat from the tree near the surface of the ice prevents it from being frozen so solid that the plant cannot move, else the result might not be so ruin- ous. A little unfrozen belt surrounds the tree, and 32 ICE-GIRDLED TREES. against the sharp edge of the ice the tree is blown by the wind until the bark is cut through, when the plant is completely girdled. ‘The sap passes from the roots to the leaves, through the wood of the tree, and this will not be impeded by the wound; but as the juice descends in the liber, or inner bark, it finds its course stopped, and the superfluous sap produces a large swelling in its endeavor to provide a channel. If the cut is not very wide, and the injury has taken place recently, so that the lower edge of the bark is still fresh, a junction will some- times be formed: If, however, the case be otherwise, it will be necessary to resort to artificial means. The strongest and most luxuriant shoots of the previous year’s growth may be cut a little longer than the width of the wound, and after the ends are sharpened upon both sides, they may be placed under the bark above and below, —the flat side of the shoot facing the centre of the tree, thus bridg- ing over the cut. Heavy falls of snow, such as we frequently have in the northern parts of the country, sometimes do great injury. As it melts in the spring, it breaks down the spreading limbs, and makes most unsightly wounds. In such localities, those varieties which naturally produee such limbs should be avoided; or, if cultivated, the branches should not be allowed to start from the trunk lower than the average height of snow during the winter. VIOLENT WINDS. 33 3. Severe winds are often followed by most dis- astrous results. ‘Trees are broken down, and fre- quently torn out of the ground by the roots, when exposed to its full power upon an unprotected plain. This is one of the most serious difficulties of fruit- growing upon some of the prairie lands of the West, _ but one which is easily overcome. Belts of pines, or other evergreens, planted at the most exposed point, will in a great measure prevent injury. In more hilly districts the strong winds may not be from the west; currents draw through the valleys, and the shields must be placed at the point of ex- posure. In early summer, when the tree has just started its young growth, a more than ordinary wind will so whip these young shoots against each other as to change the whole appearance of the orchard in a very short time: when, a few hours before, each tree was beautifully green, now all of the young leaves upon the ends of the shoots have become bruised, black, and dead. The tree will soon recover from the injury; but the rapid elaboration of the sap has been checked, and much growth lost. In the vicinity of Boston there prevails annually a severe northwest wind, about the twentieth of September, which strips from the trees hundreds of bushels of fruit. This injury might be prevented, ina great measure, by proper shelter. _ Positions where the air is stagnant should be also carefully avoided. ‘The atmosphere contains a cer- 34 x STAGNANT AIR. tain proportion of earbonic acid, which is the chief source of the carbon of plants, constituting the ereater part of their wood. ‘This is received by the plant not only through the roots, but by means of all the green portions of the tree. If the air was not in circulation, it can readily be imagined that this gas would be more or less exhausted in that part of the atmosphere which immediately surrounds the plant, and that the tissue would consequently be pithy and soft. ‘Therefore we can discern the use, in the great system of Nature, of those gentle breezes which so lightly rustle the foliage, and sup- ply to the most minute leaf its proper share of this great element of live. The stagnation of the aur, together with electrical influences, we shall discover, when we investigate the diseases of fruit-bearing plants, to be the probable causes of the American pear-blght. 4, Aqueous vapor. Not only does the air contain carbonic acid with hydrogen and oxygen, but aqueous vapor, which affects plants powerfully. The first three constituents form the primary elements of the bodies cf both animals and plants; these, by their death and decay, restore the gases to their original condition ; but the rapidity of these phenomena is regulated, in a great measure, by the presence of watery vapor. Its quantity varies with the locality and the season of the year. Its absence would cause DEW AND FROST 35 sterility. If the atmosphere in the African deserts could be saturated with moisture, they would be- come as verdant as any other portion of the earth. The amount of moisture, or water, which the at- - mosphere is capable of containing, to become fully charged, varies with the degree of temperature. If it is eighty degrees Fahrenheit, it will contain ten erains to the cubic foot; if it be twenty degrees Fahrenheit, the amount of vapor would be little more than one or one and a half grains. Such being the case, a sudden fall of the temperature would re- sult in the precipitation of the superfluous moisture. The diurnal depression of the thermometer is fol- lowed by dew, in consequence ; or, when cold enough to freeze, by hoar-frost, which 1s merely frozen dew. Every one is aware of the clearness of the air in the winter, because its low degree of temperature does not allow it to absorb much aqueous vapor. When the air becomes heated in the spring, evaporation goes on very rapidly to supply the deficiency in the atmosphere, and thus nature dries up the soil. The vapors contained in the atmosphere, and its reluctance to part with heat, are among the reasons why, in our latitude, the temperature does not sink to the freezing-point every night. Late frosts in the spring are not so injurious to vegetation on the coast as inland, because, when the sun is up, and the temperature begins to rise, a fine mist immedi- ately ascends to supply the want of the atmosphere, 36 HEAT. and thus shades the plant from the otherwise de- structive rays of the sun. 5. Heat is an important stimulus to vegetable life. The functions of most plants cannot be per- formed without a certain degree of this agent. The more rapidly the tree is growing, the more is it de- pendent on the maintenance of a high temperature. The requisite degree, however, differs widely with the species, or even variety. Mr. Lymburn speaks of a plant of Marchantia which was growing in a hot spring on the island of Amsterdam, where the water was above the boiling-point; while, on the other hand, the curious Protococcus nivalis adorns the polar regions, where the frost scarcely gives way under the heat of midsummer: and yet this plant spreads over vast plains, and illumines them as if by crimson snow. A high degree of heat is generally favorable to the growth of fruit, if it be not accompanied with drought. By the management of artificial heat, gardeners make plants perform curious freaks. Sir Thomas A. Knight caused melons and cucumbers to produce all male blossoms in excessive heat, and all female ina low temperature. Heat stimulates evap- oration from the leaves, and therefore excites the roots to absorb nourishment from the soil. With the aid of light it paints the colors upon the fruit, which show that the saccharine fermentation has been well performed. LIMITS OF THE VINE. 37 It is often noticed that the sweetest fruits are nearest to the ground, because they obtain a greater amount of heat by its radiation from the earth. Mr. Murray, of England, proved that this was very dif- ferent on the side of a hill from what it was in the valley. In one case the thermometer was thirty de- grees higher on the inclined surface than in the plain. He states that upon the plains of Piedmont, in Italy, the vignerons are obliged to detach their vines from the poles, and cover them during the winter, to prevent injury; while on the acclivities which surround the city of Genoa, the pomegranate, the lemon, and the orange, flourish. The principles of radiation were understood in very ancient times. In the land of Judea the vine- yards and orchards were often planted upon terraces, to acquire additional heat. : In Europe they fixed the limits of the vine by the mean temperature of the summer months. The least mean degree required for the ripening of grapes suitably for wine is sixty-seven degrees. Boussin- gault thus states the effects of the temperature upon the quantity and quality of wine produced.’ (See Table A, next page.) “In 1833 and 1837, the wines were scarcely drinkable. A summer whose mean temperature is below sixty-seven degrees will not produce valuable wine.” 1 Blodgett’s Climatology, p. 439. 4 38 COLD. TABLE A. Mean Mean F Temperature Temperature Gallons Per-centage YEARS. of whole of of of Time of Growth. Summer. Wine per Acre.| Alcohol. tart Ter re aoe es a ae “eh oh hh cdl Cle 1833 08.4 63.1 311 3.0 1834 63.1 68.5 413 11.2 1835 60.4 67.0 625 8.1 1836 60.4 71.0 o44 Tek 1837 59.3 66.0 184 hi Mr. Blodgett gives an excellent table of the tem- perature of the principal wine districts of this country. (See Table B. p. 39.) 6. It has been shown that heat is a great stim- ulus to vegetable life. Cold, on the other hand, diminishes the activity of plants. At certain sea- sons of the year a sudden fall in the temperature produces in some kinds of vegetation disease and death. Ifa frost occurs late in the spring, when all the organs of the tree are performing their work with great rapidity, the leaves and all those soft parts which are filled with fluid become black and stained, and lose their vitality. ‘The green portions of a tree are made up of cells, whose membraneous walls are very thin. On the contrary, those of the wood are very thick; but this varies according to their age. When the juice contained in the former, or young cells, has become frozen, it ex- 0 OOOO lor) pe ‘eQ ‘ouryO ppoyoury || 4:6 | Ge | OT | TO | Gs | €€9 | STS | CHD | OL } 8°09 || OOS | OO'TE “1eQ “OulYD Jop oyouLy WN ‘osed a || por | go | 6h | 99 | 90 || S19 | OFF | OT9 | 08 709 || ores | Eo'ce|* °° “W'N ‘oseg 1 ‘WN ‘onbaonbnqy || 78 | OT | St | 9S | 90 || 8'eS | WHE | Soc | TEL | VES || OLGY | ET CE | ° “WN ‘onbsonbuqry ‘azonqiy uog || goe | or | 6s | os | 18 || TI9 | SOP | veo | 66L | LID || OOOT | LORE} * * ° ‘oLfongrty Woy “BOT ‘UOSIPLY MOg || -G'0¢ | Lip | GFT | GST | EST || SOS | E9S | TEs | GEL | GOS || 009 | SE Or | * ‘VMO] ‘UOSIPVTT ILO ‘ow ‘smoqt 3g | ezp | on | 4s | ort | Let || oso | oes | HFS | SOL | OC || OCP | LESE|* ° * “COW “smoT “1g TL ‘pues || ctp | te | v6 | eet | et || roo | Tre | 8'9¢ | BLL | G'9C |] 009 |Orse|* ° * “TIT ‘pur yore ‘puy ‘Auowiey MON || Sep | GSI | VL | SSI | GOT || OLE | OLE | GFE | GOL | LBS || OOP | TT8E | ° “puy ‘AUOWILET AON ‘youn “yooug ome |i eze | eo | Te | GIT | ee || BLP | 8°93 | OF | GOL | HHP || 008 “| OSS) * “UPHA “9019 O19VE ‘yore ‘toqay uuy || o'sz | te | on | ort |e. | ror | ese | Per | 99 | Sor || OCA fOTer|* * “WON “loqry uy ‘9 ‘uysoqg || ece | ve | oot | It | e6 || esr | 88% | NGF | E69 | OCP |] BOL | ESTH]* © * * “O ‘UNTGO ‘o ‘puvpag | e-ze | re | on | es | oo | esr | soe | rIc | 019 | FoF || ozo | erTh|* * * °°O ‘puBloasin ‘Oo ‘Heuupury || ozy | ett | oor | st | EIT || sec | Ge | OGG | O'eL | EFS |] OCS | 90GE)° * * “O ‘euUloUly) mUdy, ‘OTTAYSUN || Sze | Fst | SST | OFT | TPT || 98S | V6E | Bo | SLL | VES || Seo | GOCE)” © “Tua, ‘OT AYSeN ‘xaq, ‘oluojuy ues || gze | og |o9 | re |os | 969 | ore | PIL | Ses | GOL || 009 | Ee6s|* * “XOL “ofwouY ug ‘ery ‘omtasqungy || grec | ppt | oot | 9FT | GFT || Lec | Ter | Ses | ocL | Bes || OCS |GrrE|* * ° “RIV “oTAsIuNA ‘ex ‘eyaedg || z-T¢ | ect | OFT | GOT | TIL || oe9 | Gor | S89 | GGL | BE9 || OSS | LTEE;" °° “ery “eyivdg ‘Og ‘uopueg || rFe | TOT | 86 | 80% | O'ET || 92 | WLP | 99 | LL | VED || OSS | STE; * ” - “9 'g ‘uopuley ‘ON ‘HH fedeyp Lee | Ger | coo | eon | ec || one | rece |* * SO CN ‘TWH ledeyqo ‘ON ‘Suousoddnsg || e-zp | gor | cot | ret | got || Tec | ger | O'OG | LPL | OSS || Of |[oses|* “O'N ‘suoutoddnog ‘PIN “MOWTLE | PPY | O'6 | GOT | LET | GIT || LPG | EVE | OGG | EPL | Gos e6. | LU6e |’ °° CPW ‘routed ur “ul “ul “Ul ‘ul i ee ee i TEMPERATURE. *IdO} “UUInNy | “our -urA\ | -ny | -ung *“Io} “TUN | *.fo UT -urM | -ny | -wng supids) "1VOX Suridg)| vax ‘opny | ‘apngt ULV | “38 Bey tek “GOVTT ‘NIVY fO TIVA ‘AN OLVUAAINAY, We i a ag Sole) Eee ‘KMINOOO SINL JO SLOINLSIG ANIM 'IVdMIONINd AHL NI Nivea JO TIVE AGNV avALVaadKAL— ‘a ATAVAL 40 FREEZING THE SAP. pands the slight walls until they are unable longer to withstand the pressure, and burst. When their temperature is restored, the sap, of course, runs out among the tissues of the wood, and its nutritive action is lost. As the injury done by freezing is thus not made manifest until the heat is restored, it has often been thought that it was in the thawing that the leaf was destroyed. It is no doubt true that by shading from the sun, or by washing with water, these organs are sometimes enabled to bear the immense damage which they have sustained, and to recuperate their energies, through the action of those parts which have not been injured; but the harm is accomplished before it becomes evident to the casual observer. A low degree of temperature, even though it be not at the freezing-point, is injurious to plants, as it causes stagnation of the sap, in which case fungi are liable to attack their tissue. Severe cold during the winter is generally not productive of injury, be- cause these membraneous walls have then become thickened by layers of woody fibre, and have greater resistive force; the flow of sap also being then so much less, the danger to the tree from its expansion by freezing is lessened. Steady cold weather during the winter is beneficial to vegetation. Many tender plants will endure our climate if protected from the sun, which defends them from these variations in temperature. This is the principle which should ‘ MILD WINTERS. Al be followed in covering all halfhardy trees or shrubs. It is not necessary to shield them from the cold, which one would judge was the object from the immense bundles of straw with which many such plants are surrounded, but to shade them so as to prevent those sudden changes, from heat to extreme cold, which destroy the tissue. Mild winters are those most destructive to vege- tation, as they are generally characterized by great reverses of temperature. A writer says:* “We _ speak of one year as warmer or colder than another; but it is a wonderful example of unchanging law, that they seldom differ materially in the mean tem- perature of the year. That of London is fifty de- grees, four minutes; and, however hot or cold the seasons were, it did not cause the average of the year to vary more than one-half a degree ; and this was probably owing to the imperfection of our im- plements.” A warm summer is very beneficial to vegetation, because, as we have already seen, a constant high temperature at that time stimulates their vital en- ergies. But as the mean of every year is nearly the same, in order to have a warm summer the preced- ing winter must have been cold. Sometimes, how- ever, the heat following a cold winter seems to be misplaced, either by an unusually warm spring or autumn, which produces the mean, even though the 1 Loudon’s Gardeners’ Magazine, Vol. XVII. p. 147. 4% 42 LIGHT. temperature of the summer should be moderate. Thus the seasons following a cold winter are the golden ones for the fruit-grower. 7. The effect of electricity may be considered in treating of the causes of American pear-blight. 8. Light is another essential requirement of vegetation. It has a great influence in maturing the wood of the plant. In places where it is absent the foliage becomes sickly, and a poor, unripe erowth is the consequence. It affects not only the growth of the tree, but also the quantity and quality of the fruit. A writer’ in the Gardeners’ Chronicle says: “I send you a few peaches, taken from a tree which was brought to this garden as a nursery-plant in 1832; the following winter it was planted where it now stands, the wall and border being both new. For the first ten years I do not recollect that it ever bore a fruit, owing to a large sycamore which overshadowed the wall where it stood. The tree being an object visible from various parts of the premises, my master felt the greatest reluctance to take it down; but about ten years ago he consented to remove it, and since that time the peach tree, which had never before that carried a single fruit, has rewarded us with a fine crop every year. The number this year upon the tree was thirty dozens ; 1 John Povey, Thorneycroft Hall, England. CHEMICAL RAYS. 43 in 1851, thirty-three dozens; and in 1850, thirty dozens.” The rays of the sun possess certain chemical properties which produce saccharine fermentation in the fruit. Every one who eats it knows how much superior the flavor is of those which have been beautifully colored to others of the same va- riety which are green. In no sort is this difference more strongly marked than in the Vicar of Wink- field’s pear. ‘Those which are colored ripen easily, their flavor is very good, while in the remainder the saccharine fermentation has never. commenced, _ and they are only fit for culinary purposes. When we examine the best system of pruning, we shall see that the most successful cultivators have adopted those plans which give abundant opportunity for the rays of the sun to reach every fruit. Not only does the light of the sun influence veg- etable growth, but that of the moon affects them more than might be expected. It is well known that during the day the leaves are constantly de- ‘composing the water contained in their sap, and setting free the oxygen, while they store up the carbon. In the night this function ceases: the oxygen is slowly absorbed, and carbonic acid evolved. Therefore, in the morning the plant must first re- place the carbon which was lost during the night before it can grow. | According to Professor Zantedeschi, in moonlight 44 SUMMIT OF HILLS. nights this loss of carbon is not only prevented, but carbonic acid is slowly acquired. He placed several plants, which were in full growth, where they would receive no light, and at the rise of the moon he exposed a part of them to its rays. These kept their green color and healthy appearance, while the others perished. He states that this influence of the moon, if true, is probably the cause of the in- creased growth of plants during the full of the moon, which has been noticed by some naturalists. The meteorological phenomena which influence the growth and productiveness of fruit-bearing plants have now been considered, and it remains for us to name those fruits which are adapted to the different exposures. The summit of hills cannot easily be protected from severe winds in the manner which was suggested upon plains, but must be more or less sybject to them. ‘Therefore, in the selection of fruits for such a position, those should be chosen which hold fast to the tree. The Flemish Beauty pear is notorious for the ease with which it separates from the spur. If we examine for the cause, we find that all those large pears which have slender stems, drop easily ; the wind swings them, the stem breaks, and the fruit falls. This style of stem is more generally found in the Bergamottes, as in figure 1. Where the stem is thick and fleshy, and especially if it has NORTHERN EXPOSURE. 45 a lip on one side, as at (A) in figure 2, it will be likely to maintain its hold. Among those pears which are most reliable upon such a site, may be named, the Bartlett, the Beurre d’ Anjou, the Beurré Bosc, the Merriam, the Nouveau Poiteau, the Onondaga, the Glout Morceau, and the Vicar of Winkfield. Such an exposure is de- 1 sirable for the cherry, and most par- tially tender fruits, because they must have abundant air to ripen their shoots. All of the small fruits will succeed admirably. Northern exposure is best adapted to the most tender species, because it is comparatively free from those vicissitudes of temperature which are found on asouthern slope. It is a well-known fact that where ivies and rhododendrons will perish during the first winter in which they are exposed on the southern or eastern side of a building or declivity, they flourish often for years on the northen. If we examine closely the bud of a hardy tree dur- ing the winter, we shall discover that it consists of many layers of minute leaves, and that the whole is covered with a coat of scales that is lined with a thick pubescence, which acts as a non-conductor of heat. ‘This is generally true of the buds of all trees of acold climate. Consequently they require regular 46 NORTHERN EXPOSURE. heat for a long time to bring them forth from their dormant state. Thus it will be seen that such spe- cies as possess this quality will not be subject to injury during the warm days of winter. Those . ‘fruits, however, which are indigenous to a more tropical clime, do not possess these outer scales, and therefore a few warm days bring them immediately into blossom. Even if they do not fully open their petals, the heat has started the sap and irritated the bud, and a sudden fall of temperature will kill the tender germ. Such are the peach, apricot, and nectarine. This is not only a property of species, but is more or less modified in varieties. Nature does not be- stow her gifts unnecessarily. A variety which originates where such protection would not be re- quired, has this property so modified as to render it tender in severer latitudes. Therefore native va- rieties of fruit are generally better adapted to culti- vation, and freer from disease, than those of foreign origin. | On a northern or northwestern exposure, these tender species or varieties remain frozen during the whole winter, and do not start in the spring until all danger from severe frost is past. ‘When we desire to extend the time of maturity in a variety, it should be planted on such a site; while to hasten it, the opposite exposure should be chosen. Grapes should not be planted ona slope to SOUTHERN EXPOSURE. 47 the north, as they require the direct rays of the sun to bring them to sufficient maturity to produce wine, and the cold temperature of the north would delay this until the early frosts of autumn would have prevented it. Southern exposure. This is much more lable to extremes than the northern. All except the most hardy fruits will be affected injuriously by the thaws of winter. But those which do successfully baffle with these hardships produce the most lus- cious specimens, as the power of the sun is greater here, and the saccharine fermentation proceeds with vigor. On this exposure the amateur would not think of planting any but the most hardy va- rieties. ‘There are some fruits, such as the grape, which flourish on a southern slope. There they receive a greater degree of heat, and their maturity is therefore hastened before the early frosts of au- tumn. In such a case the cold does not injure them, because they contain so much sugar, while it destroys those which are immature. The air is dryer, too, and they are not so subject to mildew and other diseases. The cultivation of fruit in low valleys is accom- panied with great risk; while it is superior to all others in beauty, yet the succulent growth conse- quent upon a stagnation of the air, and a partial exhaustion of its carbonic acid, renders the wood 48 LOW VALLEYS. liable to be killed during the winter. Generally these should be avoided; but in the hands of a skilful cultivator, with a judicious selection of va- rieties and proper pruning, the result may be more favorable. CHAPTER II. ORIGIN AND PROPERTIES OF SOILS. SOILS THE RESULT OF DISINTEGRATION — CAUSES STATED BY SIR H. DAVY — BOUSSINGAULT — HITCHCOCK — ALLUVIAL AGENCIES. PROPERTIES: SPECIFIC GRAVITY — AFFINITY FOR MOISTURE — ABSORPTION OF MOIS- TURE FROM THE AIR— CAPILLARY ATTRACTION —STATE OF DIVISION — COHESION AND ADHESION — ABSORPTION OF GASES FROM THE AT- MOSPHERE — ABSORPTION AND RETENTION OF HEAT. HE earth presents a great diversity of soils, upon which widely different kinds of plants flourish, each adapted to some peculiar genus, species, or variety of plant in the vegetable king- dom. ‘The failure of one orchard, while another, receiving the same treatment, succeeds, evinces the necessity of a proper selection of the land for the growth of fruit. ** All soils are the result of the disintegration and decomposition of rocks, with the addition of saline and decayed vegetable and animal substances.” The materials derived from the rocks constitute by far the larger part, and therefore by an examination of these we can form an idea of the composition of the soil produced from them. Soils may be almost wholly composed of disintegrated rocks, in which 5 50 MIXED EARTHS. case the ingredients of the earth which result from them will maintain their original character; but if these are decomposed, their relations may be changed. Soils do not always contain those sub- stances alone which are found in the rocks of their immediate neighborhood, for by the action of dilu- vial currents the loose matter of different rocks is frequently intermingled, while sometimes the foreign entirely covers the native material. Alluvial land is formed by the deposits of streams, and has in its composition the substances inherent in the various rocks through which it has passed. Peaty soils are mostly the result of the decay of vegetable matter, and have but little of the components found in the original rocks. The fertility of soils depends in a ereat measure upon its admixture and subdivision. An earth, if it may be properly so called, composed entirely of pebbles, would not support vegetation. Coarse sand may be knit together by the roots of a few plants, but in a fine state of division and de- composition it can nourish almost any plant. The benefit resulting from the mixture of soils is shown by the fact that those lands formed from the decom- position of conglomerate rock are very fertile. Dr. Hitchcock, in his “ Geological Survey of Massachu- setts,” says that soils consist, “ first, of their earthy and metallic ingredients, which are mostly silicates ; secondly, the acids, alkalies, and salts which existed originally in them, or are introduced by cultivation ; ORGANIC REMAINS. 51 and thirdly, of the water and organic matter which they contain. The latter constitutes the principal nourishment of plants derived from the soil, while the salts are necessary to prepare that nourishment to be taken up and assimilated by their delicate vessels. The earth serves as a basis of support for the plant, as a receptacle for the nourishment, and probably also, in connection with the roots, as a gal- vanic combination for the development of those electrical agencies by which the food of plants is taken up and converted into vegetable matter. Soils, to be fertile, should contain silica, allumina, and lime, and should be in a good state of sub- division, as this has much influence on the reten- tion of moisture. The proportion of earthy ma- terials is not of so much importance, if they are only present, because the amount consumed is so small compared with the humic acid, or organic remains. Dr. Dana aptly says that the earths are the plates, the salts the seasoning, and the geine (or humic acid) the food of plants.” Cultivation does not materially alter the natural composition of the earths, but it modifies its salts and humic acids. Plants cannot flourish without this latter element. Alluvial and sandy diluvial contain the least of it, and should therefore be supplied with ghanure srthe crops then gathered may be even larger than those from a soil in which it naturally exists, because such lands, being porous, the atmosphere is able to 52 PEAT. penetrate and prepare the whole of it for the nour- ishment of plants. The amount possessed will not necessarily effect the first crop; but it may soon become so exhausted that it will not produce another. Upon the amount of humic acid which is contained in the soil will depend the length of time in which it will continue to produce good crops. Humus, by absorbing oxygen from the atmosphere, is able to furnish the plant with carbonic acid, which is thus produced, and also with oxygen. While there are soils which are unfertile from want of humus, yet this element, which exists in such vast quantities in the peaty deposits of swamps, would, if mixed with them, render all such fertile. Dr. Dana says that “the fact that peat, or turf, is very soluble in alkali, seems not to be known among our farmers. The usual practice of mixing lime with peat is decidedly the worst which can be fol- lowed, as the geine, which forms the largest part of peat bogs, forms with lime a compound which is very insoluble. With allumina geine forms a compound still more insoluble than with lime; and though the vegetable matters in combination with these earthy bases are actually absorbed by the roots of growing plants, still the geine is in a state much less favorable than when in combination with al- kali. If we mix the lye of wood ashes with peat, we form a dark-brown vegetable solution; the al- kaline properties are completely neutralized by the GALVANIC AGENCY. 53 geine, and very often ammonia escapes from turf when treated with caustic alkali.” Professor Schubler says that pure earths, such as sand, lime, magnesia, and gypsum, when dry, are nonconductors of electricity, and that clays are also imperfect conductors. When oblong pieces of all the earths are scraped with a knife, they develop negative electricity. Experiments show that when solutions of humus are exposed to a current of gal- vanic electricity decomposition immediately ensues ; the geine collects about the positive pole, and the earths around the negative. Dr. Dana supposed that by means of this galvanic agency the rootlets of plants were enabled to attract alkali even from the particles of felspar and mica in the soil, while it was yet in an insoluble condition. If this is true, it would depend, says Dr. Hitchcock, to a consider- able extent, on the subdivision of its particles. If this be allowed, the presence of alkali in a soluble condition in the soil is not important when the rocks are present which contain it in an insolu- ble state, as the rootlets will supply themselves from this source. This may be another of the wonderful provisions of Providence for the well- being of the plant, because of the liability of the soluble alkalies to be washed away by rains, while in their original condition these little rootlets alone contain the key to their treasures. Earths are composed of different substances, be- 5* o4 CHEMICAL DISINTEGRATION. cause the rocks of which they are the particles are so various. ‘Thus the stratum may have been of sandstone, when the soil produced will of course be sandy ; if of limestone, then the calcareous ele- ment will prevail; if of slate, then clay. The min- erals which are generally found in the rocks are quartz, felspar, mica, amphibolite, pyroxenite, talc, serpentine, and diallage. These, according to Boussingault, are formed of metals which enter into the structure of plants. Thus quartz is almost pure silica, or sand. Sir Humphrey Davy observed, with regard to the chemical causes of disintegration: “ The manner in which rocks are converted into soil may be easily conceived by referring to the instance of soft or porcelain granite. ‘This substance consists of three ingredients— quartz, felspar, and mica. ‘The quartz is almost pure silicious earth in a crystalline form. The felspar and mica are very compounded sub- stances; both contain silica, allumina, and oxide of iron. In the felspar there is usually found lime and potassa; in the mica, lime and magnesia. When a granite rock of this kind has been exposed to the influence of air and water, the lime and po- tassa contained in its constituent parts are acted upon by water, or carbonic acid; and the oxide of iron, which is generally in its least oxidized state, tends to combine with more oxygen. ‘The conse- - quence is that the felspar decomposes, and also the MECHANICAL CAUSES. dd mica; the first the most rapidly. The felspar, which is the cement of the stone, forms a fine clay; the mica, partially decomposed, mixes with it as sand; and the undecomposed quartz appears as gravel or sand of different degrees of fineness. As soon as the smallest layer of earth is formed on the surface of a rock, the seeds of lichens, mosses, and other imperfect vegetables, which are constantly floating in the atmosphere, and which have made it their resting-place, begin to vegetate ; their death, de- composition, and decay afford a certain quantity of organizable matter, which mixes with the earthy material of the rocks. In this improved soil those perfect plants are capable of subsisting. These in their turn absorb nourishment from water and. the atmosphere, and, after perishing, afford new ma- terial to that already provided. ‘The decomposition of the rocks still continues; and at length, by such a slow and gradual process, a soil is formed in which even forest trees can fix their roots, and which is fitted to reward the labors of the cultivator.” Boussingault thus gives the mechanical causes effecting segregation. “ Water, by reason of its fluidity, penetrates the masses of rocks that are at all porous, and filters into their fissures. If the temperature now falls, and the water congeals, it separates by its dilatation the molecules of the minerals from one another, destroys their cohesion, produces clefts, and slowly reduces the hardest 56 WATER. rocks, first to fragments, then to powder. During its frozen state, the ice may serve as a cement, and hold together the disintegrated particles; but with a thaw, the slightest force, currents of water, or the effect of weight, suffices to carry the fragments to the bottom of the valley; and the rubbing and motion to which these are exposed in torrents, tend to break them still smaller, and reduce them to sand.” It is well known that water, by an apparent ex- ception to a general law, expands with great force when freezing. Over a large extent of surface the effect may be very considerable, and when boulder- stones lying in shallow ponds become partially enveloped in the ice, they must feel the effects of this expansion, and be driven toward the shore; since the force must always act in that direction. As nothing exists to bring back the rock to its orig- inal position, the ultimate effect must be to crowd it entirely out of the water; and perhaps to this cause we may impute the fact, that on the margin of some ponds we find a ridge of boulders, while the bottom, to a considerable extent, is free from them.’ ‘There is, however, one agent of excavation that still operates to some extent, and this is called ice- floods. Their effect is most powerful upon the smaller and more rapid streams. Whoever has not 1 Geological Survey of Massachusetts, by Dr. Hitchcock. ICE-FLOODS. Oy | witnessed the breaking up of a river in the spring after a severe winter, when its whole surface has been covered by ice several feet thick, has but a faint idea of the prodigious force exerted at such a time. ‘The ice high up the stream is usually first broken in pieces by the swollen waters. Large masses are thus thrown up edgewise, and forced underneath the unbroken sheet, and the whole bed of the river is blocked up — perhaps, too, where the banks are high and rocky. The water accumulates behind the obstruction until the resistance is over- come, and the huge mass of water and ice urges on its way, crushing and jamming together that which it meets, and thus gaining new strength at every step. Often for miles the stream, prodigiously swollen, is literally crammed with ice, so that the water disappears, and a slowly-moving column of ice is all that is seen. This presses with such force upon the bottom and sides of the river-bed as to cause the earth to tremble, with a sound like heavy thunder, for a distance of miles. Sometimes the body of ice becomes so large, and the friction so ereat, that the waters are unable to keep it in mo- tion, and it stops, while the river is turned out of its channel, and is compelled to flow in a new bed for weeks and even months.” This cause has a wonderful effect in excavating the beds of rivers. It sometimes tears up great rocks, and pushes them for a considerable distance. 58 ALLUVIAL AGENCIES. Dr. Hitchcock divides the deposits from diluvial currents into “ first, boulder-stones, formed gener- ally of the least yielding rocks; second, gravel or sand mixed, or the more yielding rocks; third, beds of clay; fourth, consolidated sand and pebbles; and fifth, beds of sand. ‘The depositions are generally horizontal, although some of them dip a little, and lay according to the degree of their pulverization. Sometimes, by an action which appears to have been lateral pressure, the strata becomes somewhat con- torted. “ From alluvial agencies are produced — “1. Soil, or disintegrated and decomposed rock, with such an admixture of vegetable and animal matter as will support the growth of plants. «2. Those vast accumulations of sand which are found in the beds of the ocean and of lakes, and which, when driven upon the land by the wind, are called downs. ‘These are constantly shifting, and are destitute wholly of organic matter, and are therefore entirely barren. “©3. Peat. ‘This consists almost wholly of organic remains, which are deposited by the death of plants. It is a powder when dry. ‘These beds occur only in the temperate zones. “4. Alluvial marl. This varies somewhat in composition, but consists of carbonate of lime, clay, and soluble and insoluble geine. It often lies be- DEPOSITS BY RIVERS. 59 low peat in limestone countries, and is sometimes found at the bottom of ponds. “5. Calcareous tufa, or travertine. ‘This is a de- posit of the carbonate of lime from springs, and forms a substance like stalactites. “6. Coral reefs. “7, Stlictous sinter, which is a deposit of silica from thermal springs. “8. Silicious marl, much resembling calcareous marl, but composed almost entirely of silica, de- posited from the skeletons of minute infusoria, which at death sink to the bottom of the pond. | “9, Bitumen, deposited from springs in the form of naphtha and asphaltum. “10. Sulphate of lime, very rarely deposited by springs. “11. Hydrate of iron. “12. Hydrate of manganese. “13. Chloride of sodium. “14. Sandstones, conglomerates, and breccias. Sand cemented, is called sandstone ; when it contains rounded pebbles, it is said to be conglomerate ; and when it has angular fragments, it is called breccia.” The substance deposited by rivers differs with the distance from the mouth. When it comes forth from the mountain, coarse stones and boulders are rolled along, the finer materials are carried further, and the finest are found near the mouth of the stream. Alluvial deposits are made from currents 60 ALLUVIUM. of the ocean. Alluvium is formed upon marshes, near the coast, by the decay of vegetation, by ma- terial retained after the flow of the tide, and by that deposited by streams. In northern latitudes, peat is thus formed. In the muddy deposit at the bottom of lakes, ponds, or inlets, aquatic plants begin to flourish, and by their decay increase the depth of the deposits; at last it reaches the surface of the water, and becomes a marsh. The top of this deposit is composed of vegetable fibre hardly decomposed at all, and from this is a regular grada- tion to perfectly-formed peat in the lower strata. Dr. James E. De Kay, Zoologist for the State of New York, says: “In a calm, still day I have fre- quently noticed the surface of the water covered with patches of sand, varying in extent from one to six or eight inches square. ‘These patches are com- posed, of course, only of the finer portions of sand, adhering to each other by a thin film of gelatinous matter, which gives buoyancy to the mass. I have been surrounded frequently by patches of this kind in tolerably close contact, and covering a surface of several hundred acres. The lightest touch of an oar, or a slight breeze, causes them to sink immedi- ‘ately. The rationale of their formation I conceive to be this: the shore we know to be peopled with myriads of minute mollusca, furnishing, either by their excrements or their own proper bodies, a gelatinous substance, which hardens upon exposure ALLUVIUM. 61 to the sun, and forms a crust including the subja- cent sand. In this state the water comes in quietly, detaches successive portions of this crust, in large or smaller pieces, which are borne away by the retreating tide. May not this silent and hitherto unnoticed transportation counteract, to a certain extent, the operation of other known agents? It is not philosophical, I admit, to impute important effects to slight and apparently inadequate causes ; but it is equally unphilosophical to neglect trifling phenomena until the nature and extent of their agency has been thoroughly investigated.” Boussingault says: “ The final result of the dis- integration of rocks, and of the decomposition of those minerals which enter into their constitution, is the formation of those alluvia which occupy the slopes of mountains that are not too steep, the bottoms of valleys, and the most extensive plains. These deposits, however formed, — whether of stones, pebbles, gravel, sand, or clay, —may become the basis of a vegetable soil, if they are only sufficiently loose and moist. Vegetation of any kind succeeds upon them at first with difficulty. Plants, which by their nature live in a great measure at the expense of the atmosphere, and which ask from the earth little or nothing more than a support, fix themselves there when the climate permits. Cactuses and fleshy plants take root in sands; mimosas, the brocua, the furze, and others, show themselves upon gravels. 6 62 DEBRIS. These plants grow, and after their death, either in part or wholly, leave a debris which becomes profit- able to succeeding generations of vegetables. Or- ganic matter accumulates in the course of ages, even in the most ungrateful soils, in this way, and by these repeated additions they become less and less sterile. It is probable that the virgin forests of the New World have thus supplied the wonderful quantity of vegetable mould in which the present generation of trees is rooted. At Larega de Supia, in South America, the slipping of a porphyritic mountain covered completely with its debris, to the extent of nearly half a league, the rich plantations of sugar-cane which were there established. Ten years afterwards I saw the blocks of porphyry shad- owed by thick groves of mimosas; and the time, perchance, is not very remote when this new forest will be cleared away, and the strong soil, enriched with its spoils, will be restored to the husbandman. «The chemical composition of the earth adapted for vegetation must of course participate in the nature of the rocks and substrata from which it was derived ; and the elements which enter into the constitution of mineral species ought to be found in the soils, which, by the effect of time or human industry, may serve for the reproduction of vegeta- bles. It is on this account that it becomes inter- esting to study the composition of the minerals, which are the most abundantly dispersed in the solid mass of the globe.” CRUMBLING OF ROCKS. 63 Professor Stockhardt says of the weathering and decay of rocks, that the crumbling of rock into earth still continues, and renders it capable of be- coming and remaining a supporter and sustainer of vegetable growth. ‘The principle on which it acts may be thus described: «Through the alternations of heat and cold, cracks and fissures are formed in the most solid rocks; with the assistance of air and water, these are deep- : ened and widened, and separate fragments are de- tached from their connection with the great mass. Through the same alternations of temperature a daily circulation of air is produced in the porous soil. Moreover, all chemical processes go on more rapidly and energetically at a high temperature than at a low; therefore, the warmer a soil is, the more rapidly will weathering and decomposition proceed in it. “ Air, in union with the watery vapor always present in it, affords oxygen, or water, to all bodies which have a tendency to combine with these sub- stances. The particles of iron (protoxide), which scarcely any rock is without, make use of it, and become converted into iron-rust, which does not possess a fixing or binding power, like the protoxide of iron, and therefore no longer offers any obstacle to its disintegration. The fact that all rocks which are traversed by a yellow vein of iron-rust may be split or broken readily, demonstrates this clearly. 64 DISINTEGRATION. The avidity with which organic substances, whether derived from dead plants or animals, absorb oxygen, is still greater than that of iron. The breaking down, decay, gradual solution, and disappearance of these, is caused principally by air; for decomposi- - tion consists of a constant absorption of oxygen, which forms with the elements of these organic substances new, soluble, and volatile compounds, which, where vegetation abounds, are in great part absorbed by the roots and foliage; otherwise they are lost by evaporation. Air in motion, as in winds or storms, may also, by its mechanical power, di- rectly or indirectly promote the cracking or loos- ening of the earth, as also the circulation of air in the soil, by its pressure on the crown of a tree, thus exercising a leverage on the roots.” We have before stated that it was unsafe to judge wholly of the nature of the soil by the rocks which underlie it, on account of the numerous chemical and mechanical agencies which are at work in their disintegration, decomposition, and mixture. If the surface of the earth was a vast level, the substratum of rock would be a more correct index to the nature of the soil; but such a condition of things would be decidedly unfavorable to fertility, as it would en- tirely prevent the mixture of the separated particles of the different rocks. “The agency of water to produce this result is almost beyond conception. In a violent storm, we can perhaps form an idea SPECIFIC GRAVITY. -» +65 how the breakers of the ocean eat away the shore, by referring to the North of Germany, where it has swallowed up large tracts of the continent and islands. Of twenty-four islands of East Friesland, which existed at the time of the birth of Christ, only sixteen at present remain. In like manner we have examples of the opposite effect of water, show- ing that at least a portion of that which it has taken from the land in one place is deposited in another ; — in the delta of the Nile, which is almost half as large again as the kingdom of Saxony; in the delta of the Ganges, twice as large; in the south coasts of France and Italy, where a band of solid land, from one to two leagues wide, has been formed by alluvial deposits since the time of the Romans; in the Low Countries, in the Coral Islands, etc.” In the polar regions immense bodies of ice are often detached from the land, bearing large quantities of earth with them, and often transport it great distances. Sometimes glaciers separate from the mountain-top on the approach of summer, and, in sliding toward the valley, wear off the rock, and push the heaps of gravel before them to the plain. * Rain, frost, and gravity,’ says Dr. Hitchcock, “are the three principal causes which operate to degrade the hills and fill up the valleys.” Let us now consider the PROPERTIES OF SOILS. Specific gravity. ‘Those soils which weigh the 6* 66 . AFFINITY FOR MOISTURE. most are the least fertile. Pure sand has the great- est specific gravity, and we know it to be sterile. In proportion as it becomes light does the organic matter, and therefore the fertility, increase. Hu- mus, or soil of decayed vegetation, is the lightest of all; then clay, calcareous earths; then sand. Mr. Johnston found one cubic foot of dry Silicious or calcareous sand to weigh ; : . ; 110 lbs. Half sand and half clay, - : : , A é » oe Common arable land, . : : : ‘ from 80 to 90 Pure agricultural clay, . : ; og Garden mould, richer than the lest} in es ie ‘heer 70 Peaty soil, . : é : ‘ Z d : from 30 to 50 Affinity for moisture. As the plant receives its food through the medium of water, it is necessary that arable land should have the power of imbibing . a considerable quantity. To be of value for fruits, a soil should be able to absorb from forty to seventy per cent. of its weight in water. Mons. Schiibler made a series of very interesting and useful exper- iments upon the character of soils, which was pub- lished in the annals of French agriculture, and whose tables we take the liberty to use, in consid- ering this and other properties of soils. The degree of absorption in different kinds of earth is nearly as follows: Kinds of Earth. i ialia cts © 8a Silicious sand, . ‘i ; ‘ 5 : A F ‘ 25.0 Gypsum, . ‘ : ; : ; ; . 4 : - 270 fen Ogleargons Samsun as Remeag ty Bi | Sandy clay, . ‘ . : d : . 5 ‘ . 40.0 Strong clay, . , ; . : : : : : oy, SOD Fine calcareous earth, . : : : : ; : - 85.0 RETENTION OF MOISTURE. 67 Kinds of Earth, Petemte Humus, - : : . ? " : ; A ~/ 4190.0 Garden earth, . - : F ; : : ; : - 89.0 Arable soil, . z ~ . . - : 2 : : 52.0 Arable soil, “ 3 : 5 2 : F - : . 48.0 Retention of moisture. When soils become wet with dew or rain they part with it by evaporation with very different degrees of rapidity. Those which absorb the most are generally the ones which dry the slowest, and this quality constitutes the difference between warm and cold soils, as seen below: One hundred parts of the water contained in the soil loses in the course of four hours, at 66° Fahr., the following per centage: Kinds of Soil. Per cent. of Loss. Silicious sand, . A ‘ ‘ ‘ : ‘ ‘ ; 88.4 Caleareous sand, . ; . rete : ‘ : schoo Gypsum, - - ‘ : é : 4 ‘ , ; 71.7 Sandy clay, . : : ; : = : : : - 52.0 Stiffish clay, . sae ; : “ern : : Pea: 157 | Stiff clay, . : . é a - F . at Sit . 349 Pureclay, . - : - : : ; : 2 31.9 Calcareous soil, . See reds ache ; : : : oO Garden earth, rae teh ater te che 3 weirdo Humus, . ; - . ° : = - s op ae Thus it will be seen that those soils which absorb the least moisture lose it the quickest by evapora- tion. As the earth dries, it shrinks. This causes the cracking of clays, which, as will be perceived in the chapter on drainage, is such an important qual- ity, because it permits the water to pass off through these crevices, when tenacious earths would other- wise be impervious. 68 ABSORPTION FROM THE AIR. ~ Kinds of Soil. as Carbonate of lime in fine powder, . . : SOA hee : 95.0 Sandy clay, .. ; ; : : iE Se : : - 94.0 Stiffish clay, . Rak haa . . ae ° - 5 91.1 Sint clay rei s. = - f SULTS Ne gta ‘ ;: . 88.6 Pure clay, . i : , : : : 4 - g 81.7 (arden earth; i. Mist. les. .t epaheelh GREE 9a) tent eene Humus, . 3 ; ; : 2 3 ; : 5 84.6 Absorption of moisture from the air. ‘This is a quality of great value, particularly in a hot and dry country, where the amount of rain for several months is very small. It restores to the soil a part of the moisture which has escaped by evaporation. Sir Humphrey Davy deemed this an index to the good quality of land. It will be found, according to M. Schiibler’s experiments, that this property of the absorption of moisture from the air is in proportion to the fertility of the earth, since clay and peaty soils possess it most abundantly, and sandy and calcareous lands the least. Schiibler ascertained the following facts by exposing soils to the atmos- phere at the point of saturation with moisture, the temperature being from sixty to sixty-five degrees Fahrenheit. | « Seventy-seven and one hundred and sixty-five thousandths (77.165) grains of Troy weight of soil spread upon a surface of one hundred and forty- one and forty-eight one hundredths (141.48) square inches, absorbed in twelve, twenty-four, forty-eight, and seventy-two hours respectively, as shown in the following table. | | — ei ol tera CAPILLARY ATTRACTION. 69: TABLE C. | Kinds of Soil. In 12 hours.| In 24 hours.| In 48 hours.) In 72 hours. grains. grains. grains. grains. 0. 0. 0. 0. Silicious sand, . Caleareous sand, ... . 0.154 0.231 0.231 0.231 Seen.’ ts | 0.077 0.077 0 077 0.077 Mrenclay, 2 fs 8 pee 1.617 2.002 2.156 2.156 Bemeat Cliy, 6) uw. 1.925 2.310 2.618 2.695 meme Clays ce 2.310 2.112 3.080 3.157 LE a a a 2.849 3.234 3.696 3.773 Chalky soil, in fine powder, 2.002 2.387 2.695 2.695 Gardenearth, .... . 2.695 3.465 3.850 4.004 PBs, tay oui oo es mw 6.160 7.469 8.470 9.240 Capillary attraction. This consists of the sucking up of the moisture from the subsoil to the surface of the earth. It takes place in different degrees in all soils. In some it is not sufficient to sustain vegetation when the surface becomes dried by the heat of the sun, and therefore the crops suffer from drought. In others it is in excess, and constantly keeps the soil cold and wet, which it is the object of draining to prevent. Capillary attraction, to a certain extent, is of great importance to the growth of vegetation, as the moisture which arises generally contains valuable saline properties, which are left in the soil when the moisture escapes by evapora- tion. State of division, cohesion, and adhesion. In very stiff lands, the labor of the cultivator is principally expended in producing that friability which is ne- 70 COHESION AND ADHESION. cessary to productiveness. ‘This is one reason why the chemical analysis of a soil is not always an in- dex to its value, nor a guide to the quality which it lacks, because in such an experiment its mechani-- cal division cannot be considered. The frost is a powerful natural agent in promoting the looseness of land; but the artificial means of subdivision will be fully considered in the chapter upon Pulver- ization. TABLE D. Vertical Tenacity Tenacity Cohesion Bie ianty Kinds of Soil: a Sees Clay expressed in in the Wood on the being 100. Weight. | moist state. goer cau ee | inches. kilogr. kilogr. kilogr. Silicious sand, . : 0 0. 0.17 0.19 Calcareous sand, . . 0. © 0. 0.19 0.20 Fine calcareous earth, 5. 0.55 0.65 0.71 Gyrsom, te eee y 0.81 0.49 0.53 TUITE) | (pias Psu [PET 8.7 0.97 0.40 0.42 sandy clay, . .+.. . 57.3 6.36 0.35 0.40 Stiff clay soil, . . . 68.8 7.64 0.48 0.52 pirone clay). fix & 83.3 9.25 0.78 0.86 fe Sto |) line aa 100. 11.10 1.22 1.32 Garden earth, . °. . 7.6 0.84 0.29 0.34 The cohesive and adhesive power of soils is, of course, increased when they are wet. Every one knows how difficult it is to separate two wet pieces of glass. Clay soils possess this quality in the greatest degree; it is, however, lessened by the methods described in the succeeding chapters. Schii- bler called the tenacity of pure clay one hundred, - ABSORPTION OF GASES. 71 and gave that of other soils relatively. The diffi- culty of working land is shown in the last column, also by its adhesion to the plough. ‘The relative tenacity of different soils may be learned from the preceding table (D). Absorption of oxygen, carbonic acid, etc., from the atmosphere. 'The power of the soil to absorb these gases which are so important to vegetation, is de- pendent, to a large degree, upon the state of division of its particles. Baron Liebig maintains that the property of absorbing fertility from rain-water is dependent upon the amount of humus present in the soil. We give his words: « Arable soil possesses in these respects the same properties as charcoal. Diluted liquid manure, of deep-brown color and strong smell, filtered through the land, flows off colorless and inodorous; not merely does it lose its smell and color, but the am- monia, potash, and phosphoric acid which it holds in solution are also more or less completely with- drawn from it, and this in a far greater degree than by charcoal. The rocks which by disintegration give rise to soil, if reduced to fine powder, are just as little possessed of this property as pounded coal. There is no perceptible connection between the composition of a soil and its power of absorbing potash, ammonia, and phosphoric acid. arth abounding in clay with a small proportion of lime 72. CARBONIC ACID. in it, possesses this absorbent power in the same degree as a lime soil with a small admixure of clay; but the quantity of humus present will alter the absorbent relation. | “ By a closer examination, we perceive that this power of arable soil differs in proportion to its greater or less porosity ; a dense, heavy clay, and a loose sandy soil possess this absorbent power in the smallest degree.” | Dr. Seller calculated the annual conversion of the carbon of organic matter into inorganic carbonic acid at not less than six hundred millions of tons ; and infers, on the most favorable aspect of the amount of soil over the earth’s surface, that such an annual loss could not be withstood beyond six thou- sand years; and on a less exaggerated assumption of its amount, probably very near the truth, that the waste would absorb the whole of the existing organic matter of the soil in about seven hundred and forty years. © Dr. Seller contends that the truth of these conclusions remains unaltered, even if it be considered that much of the carbon of plants is drawn, not from the organic matter of the soil, but from the inorganic carbonic acid of the atmosphere, unless some inorganic source of their hydrogen and oxygen be at the same time admitted. He therefore regards Liebig’s view of the inorganic nature of the food of plants as supported not only by many special facts, — such, for example, as that increase RETENTION OF HEAT. 79 of the organic matter of the soil, which is often observed during the growth of plants,—but also by the general view of the earth’s surface just taken ; because there is nothing in its aspect to warrant the idea that its means of maintaining the organic kingdoms are declining with the rapidity indicated in the statements just made.1 Although there is ‘no doubt that plants depend largely upon the atmosphere as well as on the soil for their carbonic acid, still there is probably no fixed law which governs the exact proportion which it shall receive from either, under all circumstances. If the soil is wanting in this element, or in the power of setting it free by decomposition, there is reason to believe that the foliage wiil endeavor to make up for the deficiency by imbibing it from the atmosphere. If, on the other hand, the soil is over- charged with carbonic acid, it may be also true that the leaves of those plants which are seen upon its surface exude, like a safety-valve, thesurplus ma- terial. Such a theory, it appears to us, is consistent with the belief that God made all his natural laws so perfectly adapted to each other that, to all ap- pearances, they are, like the stones which form the arch, self-supporting. Absorption and retention of heat. ‘The fact is well known that the earth, by absorbing the rays of heat 1 Dr. Lindley’s quotation from Annals of Natural History. 7 ‘ 74 RETENTION OF HEAT. from the sun, often becomes much hotter than the surrounding atmosphere. The soil is frequently raised to a temperature of one hundred degrees Fahrenheit, and sometimes to one hundred and fifty. This fact explains the reason for the immense growth of trees at such times, if moisture is also present, while the air is only about eighty-five de- erees. The exposure of the soil has an influence upon this quality, as the degree of heat will be much higher if it is protected from cold winds. Its color is also a great consideration, as the darker earths will, of course, absorb the most. But the power of retaining this heat after it is absorbed is a different matter. Schiibler’s tables will again supply us with a valuable guide. TABLE E. Highest Temperature acquired by the Upper Layer, the Mean Temperature being 25° Cent., 77° Fahr. ' Kinds of Soil. Moist Soil. Dry Soil. Degrees Centigrade. Degrees Centigrade. EEUU EEE Eat anEEnESEnnnEnT Silicious sand, yellowish gray, . . 1D (99.0 F.) 44.75 (112.5 F.) Caleareous sand, whitish gray,. . 38 44.50 Bright gypsum, whitish gray, . . : 43.62 ‘| Poor clay, yellowish, .. ..- .» é 44.12 ui Clay i" eee Tes es Cs 5) 44.50 Argillaceous earth, yellowish gray, ; 44.62 Pure clay, bluish gray,. . .. . : 45.00 Calcareous earth, NWVintes ne t's i (96.1 F.) | 43.00 (109.4 F.) Humus, blackish gray,. . . - .| 39.75 (103.5 F.) 47 37 Garden earth, blackish gray, . .| 37.950 45.25 wees —s THE SUBSOIL. 75 TABLE F. Time which 232.2 cubic inches Power of retaining Heat,|} of Soil required to cool from Kinds of Soil. that of Calcareous Sand| 144° to 70° Fahr., the tem- being 100. perature of the surrounding air being about 61° Fahr. hm. Calcareous sand, . . 3 30 puucious sand, . .°-. ao 27 PVPS er) arya pa. o be 2 34 BSNAY CIA. Swe 2 41 Dimish Clay, . . « 2 30 ROME CIAV,: hss: “se 2 24 Pereielay,” 4° sae 219 Calcareous soil, . . 2 10 0 Se er 1 43 Garden earth,-. . . 2 16 In examining all soils, we find that they consist of two layers, or strata, of varying thickness. The upper or surface soil is of a darker color than that which underlies it, because it possesses the organic remains of vegetable matter. Sometimes it is only three or four inches in depth, although in many fertile lands it may be found to as many feet. Beneath this les the inferior layer, or subsoil. M. Boussingault, in the translation by W. Law, says: | “Tn plains, on high table-lands, the analogy, in point of constitution, between the soil and subsoil is not so constant as in some other places. In such situations the arable land is frequently an alluvial deposit, proceeding from the destruction or disinte- eration of rocks situated at a great distance. When the superior strata possesses properties that are 76 PERMEABLE SUBSOILS. entirely different from the subsoils, it is easily un- derstood how the vegetable earth may be improved by the addition of a certain quantity of the subsoil. The impermeability of the subsoil is one grand cause of the too great humidity of much-cultivated land. «.*'s 3. So gee 2 |.) .|.| le] [eles Be Isles) 12) |S) S15 No. NAME. & (Ea) SislS| |Alala el alol als 8] 8) SY) oe B |eelele/S/= ei sle a /e/sls|sizislsisle a os) CICS IA ALO|S ele LO RN oC 0 Ct ene ae ea ee ne pene Be 2. White, |...|--|--|-:|--|25)ee ene P msiaek Naples oo 2* io2 4) a te kas oe Black, | + }--|--|--|2- se )eeieenees Dr cia PRONE cae eto Flesh, ~|--|--|-=|=| 2|--| 26) a PUPDMICHLOM ime, sb SS Soi oe Le eee A. |..|--|-2!-o)2/ 23a AbebinisnQucen hoot. Lk ose ele ee Beas ee ee Beposton Fre, ct 20. fo. foots Se eee A. |..|--|--|-2)22)22) 220 Of burrs New Pine,. lo: 242-8. 22 P. AS” [gues Soha a ae HES BeremnmisonvCones) 200520. oe ee oe PS A. |..|--|-.|22]- 42a faowners Prolite, tio 23.32 2542 eee A. *|.-|--|}-|-2)get=s)=s ream 2) LOU G) 2) all ee Ce ee eR ing [SERS A. |..|.:[22)-3o2heaeee OP | CLT SS Cea AE Sd A EASA aes op eae (an | eg A. ||.2).-l22)2 2) 2p OP booker, _o.)2/ 20 J.-L u2---2c: =. [Le 2-cel’ AS 2)23)8 2) ee ile doyey s Seedling, _..-...2_- pee te A. |..|-2| #|-4) /2)eeyne Pome Ree a foe woos tot tee eet A. |...) 22). |22]22)e5 fan denny s Seedling, ..--..-.2------- P. 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Bartlett . . . . . . « 25-| Gansel’s Bergamotte .:..) vie Fondante d’Automne >| Beurré Diel . .. «4s yang Paradise d’Automne . . . . 2] Vicar of Winkfield . . |. 526 REEKEL 6%. 5 ye he oe LON Sawrence ©... ¢>\) ne Flemish Beauty; . . +... .° 8| Winter Nelis .. . ). eth aap Louise bonne de Jersey... 10 | Bufflum ... .. . ).jWe) Beene BEST TEN VARIETIES OF PEARS ON QUINCE STOCK. Louise bonne de Jersey, Duchesse d’ Angouleme, Belle Lucrative, Beurré d’ Anjou, Urbaniste, Glout Morceau, Flemish Beauty, Vicar of Winkfield, Beurré Diel, Easter Beurré, BEST SIX VARIETIES OF PEACHES. Early York, Morris’ White, Coolidge’s Favorite, Late Red Rareripe, George IV., Bergen’s Yellow. FOR NEW YORK. II. MIDDLE STATES. I. FOR NEW YORK. BEST SIX VARIETIES OF APPLES FOR ONE HUNDRED TREES. Red Astrachan . . 10°: ‘Baldiwiths;<4 ee Fall Pippin . Kt. I. Greening . Early Harvest . Red Astrachan . Sweet Bough Primate Gravenstein . Fall Pippin . Early Harvest . Red Astrachan . Early Joe Primate Sweet Bough Jersey Sweet Porter . Fall Pippin . Gravenstein . Belmont . BEST VARIETIES FOR MARKET, FOR ONE THOUSAND TREES. Red Astrachan Golden Sweet. Duchesse of Aldenburgh 20 oz. Pippin . BEST SIX VARIETIES OF PEARS ON PEAR STOCK. Beurré Giffard, Bartlett, Tyson, . 12. Talman’s Sweet . 24 | Roxbury Russet BEST TWELVE. 20 oz. Pippin R. 1. Greening . Talman’s Sweet Baldwin Roxbury Russet ar EF LP Lh LP BEST TWENTY. 4 | 20 oz. Pippin 4| R. 1. Greening . 2 2 King Tompkins Co. _Fameuse . 2 | Mother 2 Talman’s Sweet 2 Ladies’ Sweet 4 | Baldwin 4 Northern Spy 4 | | | | Roxbury Russet 60.) Ro Greening 60 | Talman’s Sweet 80 | Baldwin . . 200 | Roxbury Russet . Seckel, Sheldon, Lawrence. King Tompkins Co. - 100 249 250 FOR NEW YORK AND NEW JERSEY. FOR BEST TWELVE ADD: Bloodgood, Beurré Clairgeau, Flemish Beauty, Winter Nelis, Duchesse d’ Orleans, Vicar of Winkfield. BEST SIX VARIETIES OF PEARS ON QUINCE STOCK. Beurré Giffard, Brandywine, Belle Lucrative, Duchesse d’ Angouleme, Louise bonne de Jersey, Vicar of Winkfield. FOR BEST TWELVE ADD: Easter Beurré, Glout Morceau, Beurré d’ Anjou. Beurré Langelier, Beurré Diel, Urbaniste, FOR THE MARKET. Duchesse d’Angouleme, Easter Beurré, Louise bonne de Jersey, Vicar of Winkfield. Glout Morceau, BEST TWELVE VARIETIES OF PEACHES. Early York, Old Mixon Free, Senate, Old Mixon Cling, Early Newington, Red Cheek Melocoton. Crawford’s Early, George IV., Coolidge’s Favorite, Crawford’s Late, or Walter’s Early, Langworthy’s Late Rareripe. Morris’ White, FOR ONE HUNDRED TREES. Early York Serrate.\..:. ..>. 25 |-Old Mixon Cling, .. . (.° cee Crawford’s Early . . ... . 20} Red Cheek Melocoton . . «18 Old Mixon Free’. . . »«.. 20.! Langworthy’s Late -. Sou 2. FOR NEW JERSEY. BEST SIX VARIETIES OF APPLES FOR ONE HUNDRED TREES. Yellow Harvest . ..... ..5|R.1. Greening «....°\¥ (ages Maiden Blush .°. .). . . 10} Baldwm . . \ . ° em Fall Pippin 2 03/05... % .. 10 |: Roxbury Russet ©: ¢°S°sS ae FOR NEW JERSEY. BEST TWELVE =v ellow: Flarmeshe(s L .” B Maiden Blush ; 8 Hubbardston Nonesuch . 8 Sweet bough 2 sy. f°... 8 Fall Pippin . 8 R. I. Greening . Baldwin : Yellow Bellefleur . Monmouth Pippin Esopus Spitzenberg Newtown Pippin Roxbury Russet BEST TWENTY. mectlom Harvesh. . . 2.» 8 Sweet Bough 2 Summer Hagloe 3 Maiden Blush Se EI, BREED ss, 6 yee oe So Gravenstein . 5 Jersey Sweet , 2 Hubbardston Nonesuch . 5 R. I. Greening . 4: OLE c it a eC BEST VARIETIES FOR Yellow Harvest 30 Sweet Bough . 25 Maiden Blush . 50 Fall Pippin 50 Gravenstein 50 Jersey Sweet . 25 Hubbardston Nonesuch 50 R. I. Greening . 100 Baldwin . : 60 Yellow Bellefleur 60 Talman’s Sweet . 25 Monmouth Pippin . Yellow Bellefleur . Newtown Pippin Talman’s Sweet Dominie . a ie” te ai Seeknofurther (Westfield) . Esopus Spitzenberg . , Roman Stem Roxbury Russet Lady Apple . ONE THOUSAND TREES. Esopus Spitzenberg . Newtown Pippin . Monmouth Pippin Roxbury Russet . Dominie.. Lady Apple Smith’s Cider . Seeknofurther . Roman Stem . Wine. BEST SIX VARIETIES OF PEARS ON PEAR STOCK. Beurré Giffard, Bartlett, Seckel, Winter Nelis, | Beurré d’ Anjou, Glout Morceau. FOR BEST TWELVE ADD: Madeleine, Belle Lucrative, St. Ghislain, Vicar of Winkfield, Beurré Diel, Easter Beurré. 251 HH Or Or Gr Ot GS GS ot ow 252 FOR NEW JERSEY. BEST FOR ONE HUNDRED TREES. Madeleine Beurré Giffard . Bloodgood . . ; Dearborn’s ne ; Rostiezer . Tyson . Bartlett Heathcot . Belle Lucrative St. Ghislain . Flemish Beauty Beurré Bose Andrews . Louise bonne de ey Seckel . : Duchesse anenasaieine , Beurré d’ Anjou — a ee ae So wp CO wp Cr > & Cr we Urbaniste . Beurré Clairgeau . Sheldon . . Vicar of Winkfield Beurré Diel . . Winter Nelis Lawrence Glout Morceau . Bergamotte d’Esperen Doyenne d’Alencon Kaster Beurré . Windsor (for cooking) Jargonelle (for cooking) Hericart (for cooking) Hessel (for cooking) Uvedale’s St. Germain BEST FOR ONE THOUSAND TREES. PeelGIne. 4. cou. ee Re et) as, 0D ome Gittard- ... «+.» 10 Bian 6. ys tes Dearborn’s Seedling. . . . 5 ere MeR OT ete! c's me eae ae MO ely ons se oP any peu Bartlett . 100 eACNOOe: 5's le, Seas a wt ae ee Lucrative. i... . Zo Seensiain . 4. «Sos. « 20 @emish Beauty... ... . -50 Beare Bose i... BO MOUMEWR cc; even siping BOO Louise bonne de Jersey . . 50 mecker so. ke wie ett ako Duchesse d’ Bo coulomel! See ab? BemreamAnjou:. . . - . 50 Unbaniste: es laa Beurré Clairgeau Sheldon . Vicar of Winkfield . Beurré Diel Winter Nelis Lawrence Glout Morceau Bergamotte d@’Esperen . Doyenne d’Alencon . Columbia Easter Beurré . Windsor. Jargonelle . Hericart . Hessel : Uvedale’s St. Gedtnetn ‘ BEST TWELVE VARIETIES ON QUINCE STOCK. Rostiezer, Belle Lucrative, Beurre d’Anjou, Beurré Diel, Se Re RSP ON HO EP dw Oo oOo & FOR NEW JERSEY. Duchesse d’Angouleme, Glout Morceau, Louise bonne de Jersey, Doyenne d’Ete, Vicar of Winkfield, Doyenne d’Alencon, Bergamotte d’Esperen, _ Easter Beurré. FOR ONE HUNDRED TREES. Doyenne d’Ete. . . . . . 8 Louise bonne de Jersey . Rostiezer . : 3 | Urbaniste : Meters sk ke Ce 5 | Beurré d’Anjou Duchesse d’Angouleme 5 | Vicar of Winkfield Bon d’Ezee . 2 | Beurré Diel . Belle Lucrative - . + O2@olombia:. Beurré Superfin . .,. . . 2] Glout Morceau. Andrews . ‘ 2 | Bevrré Langelier . Stevens’ Genesee . 2 | Bergamotte d’Esperen Henry IV. 2 | Doyenne d’Alencon Doyenne Boussock 3 | Easter Beurré . Kirtland’s Beurré . Palak lacs ~ ces 5.4 Buffum 2 | Uvedale’s St. Germain Kingsessing ... . . . . . 2/| Epine Dumas Flemish Beauty 2 FOR ONE THOUSAND TREES. Doyenne d’Ete . . . . ~. 10] Louise bonne de Jersey Seetiever =~. .; ») + 10,| Urbaniste Partiett..-. -. -. . . - +» 35.| Beurré d’Anjou Duchesse d’Angouleme. . . 100] Vicar of Winkfield . Meaaiizee. , . % « » ~. ' 25,| Beurré Diel Belle Lucrative . . . . . 25 Columbia Beurré Superfin ~ yt a So) lout Moreeau Amiirews- +... . + .. « 25.) Beurré Langelier Stevens’ Genesee . . . . 25 Bergamotte d’Esperen . Bieary iV... . . > «+ . 54 Doyenned’Alencon-. Doyenne Boussock . . . . 25 Easter Beurré. femtiand's beurre -. . . ~ 10,) Catillae. Go4 «= -. boa . . . . . . =. « 25) Uvedales-St..Germain . Kingsessing . . . - . ~- 10] Epine Dumas. Piemicn ieauty .°./ ., -+«% 25 BEST SIX VARIETIES OF PEACHES. Early Newington, George IV., Early Crawford, Old Mixon Free, Late Crawford, Morris’ White. 22 253 bow Ww KH ww ow or - 100 50 75 75 65 50 75 25 30 25 10 10 10 20 “O54 FOR NEW JERSEY AND PENNSYLVANIA. FOR BEST TWELVE ADD: Early York, Old Mixon Cling, Noblesse, Grosse Mignonne, Late Heath, Royal George. 3. FOR PENNSYLVANIA. BEST SIX VARIETIES OF APPLES FOR ONE HUNDRED TREES. Early Harvest . Fallawater Townsend .. Early Harvest . Jeffries : R. I. Greening . Roman Stem Townsend Holland Pippin . Knowles’ Early Benoni ‘ Maiden Blush Rambo Baldwin Wine Sap Pennoch . Early Harvest . American Summer Pearmain . Holland Pippin BEST TWELVE. BEST TWENTY. 15] 1 4 5 6 9) 9) 2 2 a BEST FOR ONE THOUSAND TREES. Early Redstreak . Maiden Blush . Smith’s Cider . Townsend Smoke House . Mee i, 25 25 2 25 - 500 Oonranwm won a Baldwin . 2p Smoke House igh - on Golden Russet of Mass. . 20 Baldwin 15 Lady 10 Benoni 2 Smoke House 20 American Golden Bice 10 English Golden Russet 10 | Fallawater . 10 American Golden Ruse Smith’s Cider ‘ ‘ English Golden Russet . id Townsend Jeffries : Smoke House at Paradise . Roman Stem Ailes Lady . ; . 2 one American Summer Pale tis Fallawater . 2) peer Golden Russet 100 FOR PENNSYLVANIA AND VIRGINIA. BEST SIX VARIETIES OF PEARS ON PEAR STOCE. Beurre Gitlardeee 8.0 fo.) . OO. Seckel. Bartlett... ns. 's\-.''. 10)} Belle Lucrative Pye0m <0 --+ 54s 0s fs. 10 | Lawrence BEST TWELVE VARIETIES FOR ONE THOUSAND TREES. Doyenne d’Ete . . . . . 251 Belle Lucrative Rostiezer . . . . . . . 25/4 Duchesse de Brabant Seecmeton. . . . . . s 25} 'Tyson ME a eS . 100 | Bartlett Beurré Giffard . . . . . 501 Beurré Bosc ei. Ghislan. ... . . . 25) Lawrence BEST SIX VARIETIES OF PEARSON QUINCE STOCK. Rostiezer, Duchesse d’ Angouleme, Louise bonne de Jersey, Belle Lucrative, Brandywine, Glout Morceau. BEST SIX VARIETIES OF PEACHES FOR ONE HUNDRED TREES. Wroth’s Karly Red. . . . .,15 | Ward’s Late Free . George IV... . . =. . «15 Coolidge’s Favorite Large Early York. . . . . 20! Molden White . BEST TWELVE VARIETIES FOR ONE THOUSAND TREES. Troth’s Early Red . . . . 150 | Crawford’s Late . Coolidge’s Favorite. . . . 50 | Ward’s Late Free Old Mixon Free. . . . . 25 Red Rareripe . Molden White . . . . . 100 | Morris’ White . Large Early York . . . . 200/ Druid Hill . George IV. . .. . . . 50 Late Heath III. SOUTHERN STATES. 1. FOR VIRGINIA. BEST VARIETIES OF APPLES FOR ONE HUNDRED TREES. Siemans +2... Ct + Of eed Cathead Stripe June. . . . . . « 5 |-Brooke’s Pippin Rastemomeen i... .--. SP liglady’s Seedling . . 100 uke . 10 250° oe 10 « 10 50 25 50 . 500 25 TOO . 20 a) “a . 100 =" LOO 50 25 50 256 Summer Golden Pippin . Porter . A Baltimore Pinpia , Robey’s Seedling . Winter Cheese . or Or or Or cr FOR VIRGINIA. Rawle’s Janetting . Northern Spy Wine Sap Limber Twig BEST FOR ONE THOUSAND TREES. Mary Stripe June . Garter... |. Summer Euler, Pippi ; Benoni Spice Porter . Red Cathead Baltimore Pippin . Robey’s Seedling . Robertson’s White Yellow Bellefleur . Bowling’s Sweet Winter Cheese . =i20 220 20 - 20 =ij20 2 20 - 20 Re) . 20 7 eu. . 20 20 = 10 . 00 Brook’s Pippin. . Holady’s Seedling . Rawle’s Janetting Northern Spy Wine Sap Limber Twig Waugh’s Crab . Strawn’s Seedling . Welford’s Yellow . Oglesby Milan . : Long Island im aeeet Micker Jack . Calasaga . BEST TWENTY VARIETIES OF PEARS ON PEAR STOCK FOR ONE HUNDRED TREES. Bartlett, Julienne, Beurré d’Amaulis, White Doyenne, Nouveau Poiteau, Seckel, Vicar of Winkfield, Hawes’ Winter, Taylor’s Winter, Lawrence, Catinka, Madeleine, Belle Lucrative, Tyson, Beurré Diel, Oswego Beurré, Urbaniste, Flemish Beauty, Winter Nelis, Buffum. BEST TWENTY VARIETIES OF PEARS ON QUINCE STOCK Madeleine, Julienne, White Doyenne, Belle Lucrative, Bartlett, Seckel, Vicar of Winkfield, Beurré Easter, Glout Morceau, Lawrence, bo Cr a | FOR VIRGINIA AND GEORGIA. Rouselet de Stutgart, Taylor’s Virginia, Beurré Diel, Winter Nelis, Duchesse d’Angouleme, Bezi de la Motte, ‘ Oswego Beurré, Beurré Clairgeau. Louise bonne de Jersey, 2. FOR GEORGIA. BEST SEVENTEEN VARIETIES OF APPLES FOR ONE HUNDRED TREES. ed June (summer) . . . . 2| Buff (wintery. .....- 38 Cane Creek Sweet (summer) . 2 | Camak’s (winter sweet). . ~« 10 Julien (summer) . . . . . 2j{ Calasaga (winter) . . . .- 9 Sweet Paradise (summer) . 2 | Cullawkee S bebe Bachelor (autumn) 8 | Equinetley (winter) . . . . 20 Disharoon (autumn) . . . . 4] Hoover (winter) . . . - . 10 Chistalee (autumn, for cooking) 2 | Maverick’s Sweet (winter). . 10 Rome Beauty (autumn). . . 2] Nickerjack (winter). . . - 9 Berry (winter) . 6 BEST TWELVE. Red June (summer). . . - 2/|Nickerjack (winter). . - - 10 Julien (summer) . . . . - 2/| Equinetley (winter). . - . 20 Cane Creek Sweet (summer) . 2 | Camak’s (winter sweet) . . . 20 Bachelor (autumn) . . . . 10| Calasaga (winter) . . . . 10 Disharoon (autumn) . . . . 5) Junaluskee (winter). . . . 10 Rome Beauty (autumn). . . 5 | Winter Queen (winter). . . 4 BEST SIX. ea 2... ses lec axi.> 6) Nqumetley, pb 0374 cca iene 26 eeelgr ... » +... «-- 6} -Camak’s Sweet. fjet -2) 30.2 Ee aye + + 260 Hoogemer iy ye tos line’ «710 BEST SIX VARIETIES OF PEARS ON PEAR STOCK. Doyenne d’Ete, Winter Nelis, Beurré Bosc, Seckel,. Bartlett, Beurré Gris d’ Hiver nouveau. “ 2.9% 258 FOR GEORGIA. ‘th ; FOR BEST TWELVE ADD: Bloodgood, White Doyenne, Sterling, Lawrence, - Belle Lucrative, Compte de Flanders. BEST SIX VARIETIES OF PEARS ON QUINCE STOCK. Doyenne d’Ete, Glout Morceau, : Duchesse de Berri d’Ete, Duchesse d’Angouleme, Louise bonne de Jersey, Easter Beurré. FOR BEST TWELVE ADD: Beurré Diel, Lawrence, Rostiezer, White Doyenne, ‘ Soldat Laboreur, Belle Epine Dumas. FOR AN ORCHARD OF ONE HUNDRED OR ONE THOUSAND TREES, WITH THE ABOVE ALSO INCLUDE: Buffum, . Van Asche, Manning’s Elizabeth, Beurré Clairgeau, Camok’s, Henry IV., Beurré d’Anjou, Tyson, Delices d’Harden pont, Heathcot, Columbia, Kirtland, Flemish Beauty, Rivers’ Winter Beurré, Beurré Langelier, Sheldon. Neighbors, | BEST SIX VARIETIES OF PEACHES. Early Tillotson, Large Early York, Stump the World, La Grange, Heath Cling, Bough. FOR BEST TWELVE ADD: ‘ Serrate Ispahan, Washington Rareripe (of Par- sons), Washington Cling, Chinese Cling, . Edwards’ Late White, | Hull’s Athenian. FOR GEORGIA AND MISSISSIPPI. 259 FOR AN ORCHARD OF ONE_HUNDRED OR ONE THOUSAND TREES, WE SHOULD ADD TO THE ABOVE, OF CLINGSTONES: Georgia Cling, | Old Mixon Cling, Tippecanoe, Horton’s Delicious, Large White Cling, Blonton. Donohue, OF FREESTONES: Serrate Early York, Harker’s Seedling, Druid Hill, Crawford’s Early, Van Zandt’s Superb, Camok’s Serrate, Smock Free, Crawford’s Late, Fay’s Early Ann, Lady Perham, Montgomery’s Late, Late Admirable, Coolidge’s Favorite, Baldwin’s Late. FOR SHIPPING: Early Tillotson, Early Chelmsford, Fay’s Early Ann, Crawford’s Early. Columbus June, FOR DRYING: Heath Cling. 3. FOR MISSISSIPPI. BEST SIX VARIETIES OF APPLES FOR ONE HUNDRED TREES. Se mauna hed June . .....«:-, 10; Caméngere... 2 2+." ep 26 RSENS ets rec oe, a WO) Shockley falas ap a2 Peweregd: 2": «ic. ce» «lO boule ase Gop cls 2.4 ee BEST TWELVE. ‘ May . DAOC aMIeMew eWay. clive ee arte a Carolina June . 5 | SSweebbusseh *...-. 6 jae he. td John Hunt Di CUMS Toei e Peis Wale) 10 Horse Apple fp COUR otG ort «oth ss ath ate sO Summer Red «... . 5| Shockley .. . . 15 Covington” fs... Ei Pon OMCMM ey Sea 5 0 ens oso See 260 FOR MISSISSIPPI. BEST -WweNTT, May : 2| Wonder . Carolina June . 4 Camenser. Red Astrachan . 2 | Sweet Russet Sweet Bough 2) Fall Pippin . John Hunt 4/ Buff Horse Apple . . 3 | Carter. Summer Red 3 Colley . Covington 4 | Cooner ° Summer Pearmain 4} Poole +4 9.4. 21 Julian . 4 | Shockley . BEST VARIETIES FOR ONE THOUSAND TREES. Wie i a Ae 50 | Carter Carolina June. . . . . . 50/| Colley Pema... « » . + BO| Cooner™. Covington . . . . . . . 50| Shockley mammer hed). =,” .) Sabi ctl BO Poole... ss ss fe Buff . 25 BEST SIX VARIETIES OF PEARS ON PEAR STOCK. Madeleine, Beurré Diel, Belle Lucrative, Bartlett, Dearborn’s Seedling, Winter Nelis. FOR BEST TWELVE ADD: Bloodgood, Rostiezer, Seckel, Tyson, White Doyenne, Doyenne d’Alencon. FOR ONE HUNDRED TREES. Madeleine .... . . . 5|’White Doyenne Doyenne d’Ete Seckel . Beurré Giffard . Belle Lucrative : Bloodgood Beurré d’Anjou Julienne . ; Galden Reus 1) ...°...).. ces Bark eth. ee a Satta bea 1G Beurré Diel . Winter Nelis 9) 9) ot isn ie poh OS Dearborn’s Seedling . . . . 5] Doyenne d’Alencon 9) 9) 5 anna n&n kk DD > me bo oO 50 25 50 . 100 - 500 FOR MISSISSIPPI AND KENTUCKY. FOR ONE THOUSAND TREES. Madeleine . ... .:. . . 100 ; Flemish Beauty . . . Doyenne @Ete ... . . 50 Seckel Beurré Giffard . . . . . 100} White Doyenne Bloodgood . : - . . . .. 25 Belle Lucrative Dearborn’s Seedling . . . 25] Beurré Diel English Jargonelle . . . . 25) Doyenne d’Alencon. meeezer =; . . » . .. . 25| Winter Nelis eis . . ss. 95) Beurré d’ Anjou Meesmneton . . . . . . 25 '| Kirtland’s Beurré Golden Beurré . . . . . 25] Julienne Weems? Fos. ss th 100 BEST SIX VARIETIES OF PEARS ON QUINCE STOCK. Beurré Giffard, Beurré Diel, Duchesse d@’Angouleme, Rostiezer, Tyson, Easter Beurré. FOR BEST TWELVE ADD: Seckel, Bartlett, Belle Lucrative, White Doyenne Louise bonne de Jersey, Glout Morceau, BEST VARIETIES OF PEACHES FOR ONE HUNDRED TREES. Early Tillotson... . . . . 20| Van Zandt’s Superb . Coolidge’s Favorite . . . . 10} Lagrange : Crawford’s Early . . . . . 10] Columbia George IV. Peaye Ya) sp 9) Royal George 5 | Bermuda Cling resse Miononne .,. . . . 4|.Héath . : Skinner’s Superb . . . . . 4 Hubbard Cling . Lovejoy Cling . 4 4 De Soto Cling Baldwin’s Late . IV. THE WESTERN STATES. 1. FOR KENTUCKY. BEST SIX VARIETIES OF APPLES FOR ONE HUNDRED TREES. Early Harvest. . . . . . 5j Small Romanite Maiden Blush . . . . . . 5/| Wine Sap Remo es. . le... 10 |) Bawle’s Janet Burford’s October Cling 261 50 25 25 ©, 20 . 100 50 « 109 25 25 50 ~~ Pek PR DP Pp «h@ - 30 . 46 262 FOR KENTUCKY. BEST TWELVE. Early Harvest . . . . ... 5| Yellow Bellefleur. . . . Maiden Blush 7.53. Olena. d Carolina Red June . . . . 3] Wine Sap ; American Summer Pearmain . 3 | New York Pippin Rambo - - 5] Small Romanite Pennsylvania Red Str oii . . 5| Rawle’s Janet BEST TWENTY. White Juneating 2) Yellow Bellefleur . Early Harvest . . Milan . : Carolina Red June New York Eigen Black’s Annette Wine Sap Red Winter Guest Pryor’s Red Newtown Pippin Rawle’s Janet Small Romanite Carolina Fenley Secces American Summer Pearmain . Maiden Blush - Fall Queen . Rambo Pennsylvania Red Str ek eo Or > Cr > GO HDD OO BEST FOR ONE THOUSAND TREES. Early Harvest . . . . . 100) Pennsylvania Red Streak . Carolina Red June . . . . 100) Wine Sap Maiden Blush. . . . . . 50] New York Pippin Red Astrachan . . . ..* 50:| Rawle’s Janet . BEIEY (ic sve Se oe, ys bye Oe oman, Ravshippim: 25. ae a a BEST VARIETIES OF PEARS ON PEAR STOCK. Madeleine, Buffum, Bloodgood, Belle Lucrative, Tyson, White Doyenne, Bartlett, Flemish Beauty. Seckel, BEST VARIETIES OF PEARS ON QUINCE STOCK. Duchesse d’Angouleme, Louise bonne de Jersey, Belle Lucrative, Tyson, White Doyenne, Seckel. . 100 . 100 - 150 FOR KENTUCKY AND NORTHERN OHIO. BEST VARIETIES OF PEACHES. Early Tillotson, Crawford’s Early, Old Mixon, Crawford’s Late, Grand Admirable, Large White Heath, Hill’s Superb Jersey, Leopold, Early Red Rareripe, Royal George, Malta, New York Cling, Van Zandt’s Superb, Catharine, Columbia, Freestone Heath, Smock’s Late, Druid Hill, Tippecanoe, George IV., Hobbs’ Seedling. 2. FOR NORTHERN OHIO. BEST SIX VARIETIES OF APPLES FOR ONE HUNDRED TREES, Yellow Harvest Garden Royal . Belmont . Garden Royal . Belmont . Baldwin Red Canada. : Myers’ Nonpareil . Jersey Sweet Garden Royal . Belmont . Baldwin Red Canada’. Myers’ Nonpareil . Jersey Sweet Fall Pippin . Westfield - ae Coggswell Paradise Winter Sweet . R. I. Greening . Baldwin . Rambo BEST TWELVE. Early Harvest . R. I. Greening . Rambo : Red Astrachan Sweet Bough Wine Sap BEST TWENTY. Esopus Sl a : Early Harvest . : R. I. Greening . Rambo : Red Astrachan . Sweet Bough Wine Sap American Summer Pearmain . Swaar . Lady Apple . 263 264 FOR NORTHERN OHIO. FOR THE MARKET. Letofsky . 5 | Maiden Blush Red Astrachan . 5 | Baldwin : Early Harvest . 5 | R. I. Greening . Ree Duchesse of Aldenburglé 5 |Gxambo =... Myers’ Nonpareil . 5 | Wine Sap BEST SIX VARIETIES OF PEARS ON PEAR STOCK. Zoar Beauty, Beurré Bosc, Bartlett, Flemish Beauty, Kirtland, Winter Nelis. FOR BEST TWELVE ADD: Beurré d’Anjou, Ananas d’Ete, Washington, Seckel, Stevens’ Genesee, Nouveau Poiteau. BEST TWELVE VARIETIES OF PEARS ON QUINCE STOCK. Beurré Giffard, . Beurré d’ Anjou, White Doyenne, Stevens’ Genesee, Louise bonne de Jersey, Nouveau Poiteau. Urbaniste, Zoar Beauty, Jalousie de Fontenay Vandee, Belle Lucrative, Kirtland, Bon Chretien Fondante. FOR THE MARKET. Louise bonne de Jersey, | Duchesse d’Angouleme, Bartlett, Beurré d’Anjou BEST TWELVE VARIETIES OF PEACHES. Early York, Old Mixon Cling, Coolidge’s Favorite, Ward’s Late Free, Sturtevant, Yellow Rareripe, Grosse Mignonne, Hyslop’s Cling, Large Early York, Crawford’s Early, Old Mixon Free, Crawford’s Late. FOR NORTHERN AND CENTRAL OHIO. 260 BEST FOR ONE HUNDRED TREES, AND THE SAME PROPORTION FOR ONE THOUSAND. Hale’s Early Crawford’s Early . Crawford’s Late . 20 Hey!) she Yellow Rareripe Ward’s Late Free . Hyslop’s Cling . 3. FOR CENTRAL OHIO. BEST SIX VARIETIES OF APPLES FOR ONE HUNDRED TREES. Benoni Maiden Blush Belmont . Early Harvest . Benoni Maiden Blush Ohio Nonpareil . Rambo Talman’s Sweet Early Harvest . Benoni aed Early Strawberry . Red Astrachan Golden Sweet Maiden Blush Fall Pippin . Qhio Nonpareil Belmont . Rambo = LO 3 LO ae dl. Rambo Smith’s Cider White Pippin BEST TWELVE. aA DD wo ae a Fallawater Rome Beauty Smith’s Cider Newtown Spitzenberg Baldwin White Pippin BEST TWENTY. me PB Ee DOF wT WH CO O&O WH Talman’s Sweet Peck’s Pleasant. Rome Beauty Fallawater Smith’s Cider Newtown Spitzenberg Baldwin : Yellow Bellefleur . White Pippin Wine Sap BEST SIX VARIETIES OF PEARS ON PEAR STOCK. Madeleine, Bartlett, Flemish Beauty, Bloodgood, Belle Lucrative, Buffum, 23 White Doyenne, Seckel, Lawrence. FOR BEST TWELVE ADD: Louise bonne de Jersey, Kirtland, Doyenne d’Alencon. . 20 aye vtO 266 FOR CENTRAL AND SOUTHERN OHIO. FOR MARKET. Madeleine, Doyenne d’Ete, Bloodgood, Bartlett, Flemish Beauty, Louise bonne de Jersey White Doyenne, Seckel. BEST SIX VARIETIES OF PEARS ON QUINCE STOCK. Doyenne d’Ete, Belle Lucrative, White Doyenne, Duchesse d’Angouleme, Louise bonne de Jersey, Doyenne d’Alencon. FOR BEST TWELVE ADD: Bartlett, Rostiezer, Kirtland, Buffum, Beurré Superfin, Beurré d’Anjou. BEST TWELVE VARIETIES OF PEACHES FOR ONE HUNDRED TREES. les Wary . 2... 4 «. 10 ary ork. 6 ts .. 8 Coolidge’s Favorite ..... . 8 Fellow Alberge . . 9: «,-. 18 Dares Harly York \: . , mall Coolidge’s Favorite . . . .15 | Karly Crawford -. 2 2 oem Barnard’s Seedling . . . . 20) Late Crawford. . . | canemem BEST TWELVE. Serrate Early York . . . . 5 | Early Slocum . > Coolidve’s Favorite . ... . 5 | White Imperial . . . 2aeeeee Barnard’s Seedling . . . .10| Early Crawford . . . . . 15 Idaree: Early York. «.. . . 5| Late Red Rareripe . . 2) jeg Jacques Rareripe .. . . .10)| Old Mixon Free . . | eo Poole’s Late Yellow . ..'..~ 10 | Crawford’s Late . . => 3aeaaim FOR TRANSPORTATION TO NORTHERN MARKETS. Barnard’s Seedling . . . . 300| Crawford’s Early. . . . . 400 White Imperial . °. . .. . 100 | Crawford’s Late . . ... 3208 It is very evident, to one who considers the dif- ference in these lists for the various portions of the country, that it would be impossible for a nursery- man to have them all in his possession. Some varieties are confined to very limited districts, and the demand for them is not sufficient to warrant his STRONG-GROWING VARIETIES. 271 keeping a stock; others are of such poor growth from the bud, that it is difficult to procure a good tree, and the proportion of them which would be salable would be small. Therefore the producer is obliged to limit his attention to a few strong- growing varieties. When this is the case, the cul- tivator should plant these, and graft after one season’s erowth. This will not postpone their bearing, as he might expect ; but it is a great question whether | it is not better to obtain strong trees, and graft upon them those which are weaker, than to procure them immediately from the bud. CHAPTER VIII SELECTION, ARRANGEMENT, AND TRANSPLANTATION. § I. SELECTION OF THE TREE: THE APPLE—ROOT-GRAFTED TREES — HEIGHT OF THE TREE NO CRITERION OF ITS VALUE— WHERE THEY SHOULD LIMB — THE PEACH — THE VINE — THE CURRANT AND GOOSE- BERRY — THE STRAWBERRY, RASPBERRY, AND BLACKBERRY. § II. AR- RANGEMENT : INTENSIVE PLANTING —A GARDEN OF ONE SQUARE ROD — A GARDEN OF SIXTEEN SQUARE RODS — APPLE ORCHARDS — SQUARE PLANTING FOR THE PEAR — QUINCUNX — DISTANCES, AND NUMBER OF TREES UPON AN ACRE. § III. THE TRANSPLANTATION: SEASON OF — CONDITIONS MOST FAVORABLE TO — DEPTH OF — THE DWARF PEAR— MANNER OF OPERATION— THE MOVEMENT OF LARGE TREES BY MA- CHINERY. §I. SELECTION OF THE TREE. ERE it is generally best to confide in the judgment of a trustworthy nurseryman. Above all, avoid purchasing cheap trees, which drag out a miserable existence for a few years, only in the end to waste the capital and to disappoint the reasonable expectations of the cultivator who spends time and money in the preparation of the soil. Many per- sons, on account of the purchase of inferior stock, become disgusted with fruit-culture, and conclude that it requires more experience than they possess. A good tree will always command its full value, and those which are sold at a-cheap rate are, para- CHEAP PLANTS MOST EXPENSIVE. 273 doxically, the most expensive. A reliable nursery- man has his reputation at stake, and, when it is left to his judgment to select, will send to his cus- tomers only trees of good quality, and those which are properly labelled. But, as all dealers are not of this class, it will be well for all to know the general points of excellence in a tree. For apples we should prefer those of four or five years’ growth from the bud: they then have uni- formly sufficient strength to succeed. It is a great trial of patience to find that a few, which are grow- ing rapidly, are shading and crowding out their poor neighbors. A certain proportion will always be feeble and sickly, which results, probably, from the seed from which the stock was raised. This is not so apparent in infancy as after three or four years, as the strong tree gains over the weak a little every year. Thus one tree, which at two years seems scarcely inferior to another, often at the latter age requires a year or two more of nursing before planting in the orchard. ‘The profit to the producer is, of course, greater to dispose of them while young; but that does not subserve the interest of the pur- chaser. Many apple trees are sold which are grafted at the root. These may or may not be valuable, ac- cording to the method in which the work has been performed. Every seedling plant has a root, or descending axis; and a stem, or ascending axis. 274 ROOT-GRAFTED TREES. Where these meet at the surface of the ground, there is a swelling, called a collar, which is perhaps, more than any other part, the seat of life. The mainte- nance of its proper position is of vital importance. Perhaps one-half of the trees which fail, after trans- planting, do so because this collar is placed beneath the surface; and this stifles the tree. This swelling is only possessed by seedlings, and never by lay- ers, or otherwise artificially-produced plants. Some years ago it was the custom to cut the long tap- root of a yearling into three or four parts, into each of which a scion was inserted. In this way several plants were produced from one. ‘That upon the upper cut, or collar, would, of course, form trees equally as good as those which were budded. ‘The next piece, on account of its strength, might make a good tree; yet it would be of more dwarfish habit than the former. Those grafted upon the remaining portions of root would be nearly, if not altogether worthless, sometimes never coming into fruit. They may grow in the nursery lines until large enough to sell, but, compared with a budded tree, or one grafted properly, they are only calculated to disap- point and discourage the beginner. But why are such practices encouraged by pur- chasers? In the endeavor to buy at a cheap rate the cultivator has driven nurserymen to this only remaining expedient for obtaining remuneration for his labor. In this manner he can raise several ROOT-GRAFTED TREES. 275 plants, where by the old and better method he could produce but one; and the labor can be performed at a season of leisure. Only the experienced few will purchase the first class of trees, and pay a cor- responding price for them. We believe, with the lamented William Reid, of New Jersey, that many apple trees which have been sold, especially in the Western country, will not be likely to attain a bearing condition. Such is the demand for cheap apple trees, that the very best nurserymen are obliged to keep those of this class. If such trees are examined critically, it will be discovered that their roots are a mass of fibres, like a head of hair, and possessing very few, if any, large roots. After the most careful transplanting in excellent soil, or in that which was barren, it is impossible to induce them to throw strong roots. ’ Under such circumstances they will be sensitive to the least wind, and there is nothing to prevent their being blown to the ground. ‘The tree is merely a cutting, and the little piece of reot into which it is grafted serves to keep the scion alive only until it is established. While the use of the third or fourth cut as a stock for grafting should be discountenanced, that of the second may be of use in some cases. As its effect is to dwarf the tree, it may bring some of the late-bearing varieties to an earlier maturity. Such has been the repeated effect upon the Northern 276 ROOT-GRAFTED TREES. Spy. Still, even such are better confined to a small garden; and, if I judge not too harshly, they will often want propping to guard them against the wind. When the root is used entire, the tree is as valuable in every respect as one which has been budded. Some naturalists have argued that all the plants of any variety are parts of one individual, which is the original seedling ; that every layer, cutting, and offshoot which have been rooted and dismembered, are not separate individuals, but only parts of the parent. Others, among whom have been some of the most renowned, state, with equal persistence, that each is a perfect individual in itself. But do not the latter overlook the fact that these layers and parts were made independent by artificial means ? that they must be noticed scientifically, as they would exist ina natural state? An individual plant must be one which has passed through all the periods of growth, from infancy upwards ; originally, directly from a seed; having, or having had, cotyle- dons, a plumule, an ascending axis, a descending one, and a collar. Artificial plants have none of these but the ascending axis. The fact that some diseases will attack a certain variety at once, or nearly so, — some locations being so favorable as to ward it off for atime, — shows that varieties grow old and die, as they would have done SEEDLINGS AND BUDDED TREES. 277 if confined to the original plant. The supporters of the opposite theory argue against this, by saying that the family becomes diseased and extinct through the influence of something analogous to scrofula in the human family. But, can this be the case, when their offspring from seed are often perfectly free from infection? ‘Thus some pears, which were once very fair and fine in growth, become uniformly cankered and cracked, and finally disappear, while plants from their seed are entirely free from both. An eminent gentleman of this country has said that “the plant which springs from a bud is as really a new plant as that which springs from a seed.” No seedling is exactly similar to its parent. It differs either in the flavor, form, or size of its fruit, or in the habit of its growth. There is some point by which we can instantly determine that it is an entirely different individual. Is such the case with the plant derived from the bud? Must they not be the same, when their fruit and habit are exactly alike? Can it be said to be a distinct in- dividual? The same author adds, that “if the feebleness of a tree be general, its functions languid, its secretions thin, then a bud or graft will be feeble ; and so will be its seed.’ Although the former is generally true, are not the seeds of such trees often unusually plump and fine? and is not this feebleness often caused by expenditure of strength in forming them? But, while the seed does often 7: a 978 ! YEARLING PEAR TREES. escape the diseases of its parent, and accommodate itself to the influences which affect it in its new position, —as a tender variety produces from seed one perfectly hardy, — does a plant from a bud ever escape, unless through those artificial means which only influence it for the time? It retains the dis- eases (perhaps undeveloped and latent), the form, flavor, and texture of fruit, and the habit of growth of the original seedling; and would always have been a part of it, had it not been for art. No bud of the Bartlett pear, wherever or however inserted, ever produced anything but a Bartlett ; and no seed of the Bartlett ever originated a tree which was the same as that variety. Some authors have recommended planting pear trees of one year old, because then they might be formed as desired. While this may be best in the erounds of those gentlemen who employ profes- sional gardeners, and have walls to which they wish to adapt an espalier,* yet, in our country, such persons of skill are rare, and our standard method of pruning does not render it important. ‘Trees of two years old, also, are much better in the nursery lines; but, after three years, or, still better, if trans- planted the second, and set in the orchard the fourth, they will have a strength of constitution which, compared with a tree of one or two years from the 1 See chapter on Pruning. HEIGHT FOR THE LIMBS. 279 bud, would be lke that of a man in his prime to a tender infant. ‘They will become less liable to injury in winter, as their wood is more firm, or to remain stunted for several seasons, as the former are likely to do. The height from the ground at which the lower limbs of the standard pear should grow is about two and one-half to three feet, and with varieties of weeping habit, perhaps a little more. The old © method was to train them much lower; but it was found that these limbs trailed upon the ground, and rendered their fruit almost worthless. Most inexperienced persons ask for trees limbed so high that a horse can cultivate under them. ‘The admit- tance of such cultivation into an orchard of pear trees, planted as near together as we should advise, is of very doubtful propriety. Even if the trees were sufficiently far apart for such an operation, the danger of scalding the trunk from the sun should not be risked for a matter of so little con- venience. - The height is too often considered as a crite- rion of the value; so that, for a certain class of purchasers, the strength must be sacrificed to satisfy them: but the true value of a tree should be esti- mated by the size of the butt, or trunk, at the ground. To produce a stocky plant, the top is kept pruned back, which makes the tree very sturdy ; while, for 280 VALUE OF TRANSPLANTING. a tall tree, the top is allowed to run, and its growth | is obtained in nearly half the time, but results in a slender, withy whipstick. The value of transplanting the tree before setting in the orchard, is, that the roots are brought into a limit where they can nearly all be retained. This diagram ex- hibits the roots of a tree as they lie in the ground, and the circle the proportion of roots which would be re- tained by the tree as it is usually dug. (a) represents a root. with the little spongioles | through which the tree feeds. These are very soft and tender, and, in transplanting, it is almost impossible to retain them alive. But this is of no great importance; for if there is a good supply of the small roots, of the size of a pipe-stem, or of even half that, they will readily supply themselves with feeders. But it will be seen that most of these small roots are outside of the circle, and are, consequently, lost. To be sure, the large roots will supply themselves also, but not so readily as the former; and therefore this transplant- ing more properly takes place in the nursery, where ROOTS OF TRANSPLANTED TREES. 281 the trees will have better care than they generally receive in open culture. The result of transplanting will be seen to be, in the third or fourth year, or the first or second after the operation, that in this circle a large number of these small roots have been formed, and consequently the strength of the tree greatly in- creased after moving. If the tree was to be carried but a little distance, the spongioles might be kept fresh by wrapping a moist cloth about them; but even then they would be likely to be bruised in sifting the soil into the hole, however carefully performed. The limbs of the dwarf pear, or that upon the quince stock, are much stiffer than those of the standard, and can be allowed to grow much nearer to the ground. The nearer the limbs are to the earth, the less height shall we allow to the tree, and therefore the wind will have less effect upon it, and will blow off its fruit much less. Several years ago the pear was budded on the quince, some inches above the surface of the ground.’ When the present practice was introduced of placing this junction entirely under ground (the reason for which will be explained in the directions for planting), the point of union was so high that it was impossible 24* 282 PLANTING DWARF PEAR TREES. to fix it in its proper place without plunging the roots into the cold soil below. Now, all skilful — nurserymen bud their trees as low as possible; but, should they be of the former description, they ought to be placed at the proper depth, even at the risk of losing the lower roots, as the quince furnishes itself easily from any part of its stem. Peach trees are of very rapid growth, and bear transplantation easily; so that a tree of one year is preferred, and a crop will be realized quite as soon as from an older one. ‘The limbs upon the yearling peach are of no importance, as they are cut off at planting. In general, grape vines of two or three years are better than those younger. The most common method of propagating them is by layers. If they have not been cut and transplanted, those of two years are no better than those of one; yet, if they have been, they are much more valuable; although those of one year may be used for vineyard planting where the land has been skilfully prepared. A year- ling vine, grown in a pot, has a great quantity of very fine roots, which it is difficult to preserve fresh during the winter. If not in dry, barren soil, the fibres decay, and disease seems to extend to the larger roots, so that it is doubtful whether it is of much more value thana cutting. Therefore, if such vines are used, they should not be planted in the autumn, nor until the time arrives in the spring AGE OF THE PORTABLE VINES. 283 when they will immediately grow. Much the best way is to trim off these fibres entirely; and if they are diseased, the roots should be cut to the sound part. After it has been transplanted another year in the nursery it is in better condition for general planting. A great mistake is made by the purchase of large and old vines. The roct is, like the top, a great ranger, and it can hardly be imagined what an~ exceeding small proportion of its roots can be obtained by the most careful attention in trans- planting. Besides, it is a useless expenditure, for such will seldom acquire a healthy habit, and will certainly never succeed as well as young vines. Those who buy are often disappointed, upon re- ceiving their vines, to find that the top has been nearly all cut off, and only a foot or two remains. Unlike a tree, if it possesses three or four sound eyes, the rest is useless. Even a single eye is all that is absolutely requisite. Currant and gooseberry bushes should be of the old fashioned form, or bush-shape, and not tree- formed. When there is but one stem, a single attack of the borer may destroy the whole top, while if there are several, such an occurrence would only give the remaining parts more strength. Plants of the strawberry should be runners; those of the blackberry and raspberry suckers of the pre- vious summer. 284 A GARDEN OF ONE SQUARE ROD. § II. METHODS OF ARRANGEMENT. If one has a limited tract of land, it is a question which naturally suggests itself, how can he plant it to the best advantage? This inquiry is pertinent where large tracts are possessed. In this country, land has been of so little value that our cultivation has been too evtensive. The liability has been to spread over a large area, cultivate superficially, and obtain only that from two or three acres which should have been produced from one. ‘The aim should be more zntensive, —to place upon one acre the number of trees often planted upon several, and to give it as much care and as good treatment as the larger tract would have received. This will un- doubtedly be productive of better returns. The farmer who possesses one or two hundred acres of land, and designs becoming a fruit-grower, will do well to retain but ten or twenty, and invest the amount received from the sale of the remainder in stock to be placed upon what he retains, and in bringing the same to the highest possible state of tillage. If we mistake not, his profits will be very much increased. There is hardly any one who does not possess land enough, accessible to the sun, to raise some fruit. Supposing he has but one rod square, let us see how he may use it for a fruit-garden, and what A GARDEN OF ONE SQUARE ROD. 285 results it will be possible for him to obtain. This diagram represents such a plat. (a) denotes the spot where four grape vines are placed, which are eight feet apart, and ' against the north and | west wall or fence, where they receive the sun from the opposite direction. (5) represents cur- rant bushes, planted about three feet distant from one another, on the south and east. (c) is a line of strawberries, one foot apart, ex- tending entirely around the apparent interior of the border, but really, however, over the whole rod, thus affording a fine field for the roots of the vines to roam. Its superficial boundary, as shown in the plan, is three feet from the outside. (d) represents pots of eighteen inches in diameter, each containing a peach tree, which is dwarfed by pruning; the pot being plunged to the rim in the earth of the border, to prevent too ve evaporation of moisture. Now, what may we expect, as the practical result from such an orchard, if kept in good heart by an- nual manuring and a judicious use of the knife? The four grape vines should bear, at least, fifteen 286 A GARDEN OF SIXTEEN SQUARE RODS. pounds each, making sixty pounds. The ten cur- rant bushes would yield one-half a bushel. The strawberry bed should produce, at least, thirty boxes of fruit. And the six peach trees, two dozen each. Let us extend the tract to sixteen square rods. _ A border is constructed all around the plat, of eleven feet in width, but a walk is laid over the interior three feet, which is represented in the dia- gram by(c). In this border grape vines are planted, eight feet apart, all around the plat. These are distinguished by (a). On the north and west should be a fence nearly tight, but not wholly so, as it is desirable that the air should pass through it. The vines are to be trained on stakes, or on a trellis, at least a foot in front of it. On the south and east should be, if any, only a light slat or wire fence, through which the sun may shine. PRODUCT OF SIXTEEN SQUARE RODS. 287 (b) upon the plan denotes a line of strawberries, one foot distant from each other, extending around the outside and inside borders on both sides of the walk. | (d) is a line of peaches, reaching across the inside border, eight feet apart, pruned into a dwarfish habit. (e) represents four lines of dwarf pears, of the same distance from each other as the peaches, and containing a selection of varieties which shall afford a supply for the whole season. (f) is a line of summer-bearing raspberries, four feet distant, three plants being set in a hill. (9) is a row of currants. (h) a line of fall-bearing raspberries, planted like (/). (7) is a row of gooseberries. By this plan we have, upon one-tenth of an acre, thirty-two grape vines, four hundred strawberry plants, five peach trees, sixteen pear trees, eight hills of summer raspberries, the same number for the autumn, eight currant bushes, and an equal number of gooseberry plants. This is a sample of the intensive cultivation which should be more ez- tensively practised. One often hears it said that such cultivation becomes a garden, but is not adapted to the orchard. But this should be a garden; and, until it is so considered and treated, it will not yield all the profit of which it is capable. 288 INTENSIVE ARRANGEMENT. The Clapp Brothers, of Dorchester, Mass., have well illustrated the profit of intensive cultivation in their orchard of thirteen acres. The general plan is somewhat like the following. ' (a) represents the apple trees. (b) peaches plant- ed between them ; but these become so ten- der in this locality that many of them have been killed. (c) denotes lines of currants, three feet distant each way. This plan has an advantage in the fact that the whole ground must be kept in cultivation, which is very necessary to the best results; and the annual manuring which the currants receive also enriches the trees, and that at the extremities of their roots, where the spongioles are placed; and it is therefore more available than immediately about the trunk, as generally applied, where there are no roots to make use of it. Dwarf pears may be used instead of peaches, where the latter are not hardy; and they will yield many fine crops before the apples require the room. An excellent plan, practised by many apple-orchardists, is to plant four times as many trees upon the land as they design to have remain there. If it is proposed that in the end they be forty feet distant each way, another line would be QUINCUNX PLANTING. 289 planted between them in both directions. By this method, when the trees commence to bear fruit, and during the first fifteen years, they receive four times the quantity which they would have done in the old method, which often amounts to a full crop from an established orchard. When they begin to interlock, the superfluous trees are cut out. The old method of planting the pear intensively may be seen in the figure below. (a) denotes the standard pears, sixteen to twenty feet distant. (b) the dwarfs. (c) small fruits; such as currants, raspberries,or straw- berries. The beauty of the orchard, as well as its utility, is a point to be considered by the cultivator, when the latter is not sacrificed to the former, and the quincunx is therefore generally preferred. (a) (b) and (c) correspond to the same numbers in the preceding diagram, and (d) represents a line of grape vines, extending around the whole. The manner of lay- ing out this plan upon the ground may confuse the planter, and we therefore give a more simple method. On examination, it will be found that the 25 290 NUMBER OF TREES PER ACRE. distance from one tree or bush to another is just four or five feet, according as the standard pears were placed sixteen or twenty feet apart. The whole is laid off in squares of four or five feet with a line, and marked upon the ground by nicking with the spade. Stakes are then easily driven down, representing the standard, dwarf or shrub. In this way the trees will be set exactly in line, which adds greatly to the attractiveness of the whole. NUMBER OF TREES OR PLANTS ON AN ACRE, WHEN PLANTED AT THE FOLLOWING DISTANCES APART, IN FEET. 30 feet apart each ies : , ‘ : : Z ; : ; 49 7 es “4 : ‘ : : p “ : 69 90 ce ce ce ce e 109 19 cé “ce “¢ ce 120 18 «e ce ce 6s 135 ily “ce cc ce ce 5 150 16 ce ce « ce ‘ s 170 ae ce “cc “eé ce bs - * 194 14 ce ce ce 6e 999 13 6c v9 6é 6é . 3 957 12 « (73 “cc “ec f : . 802 itu: a9 6ée ce ee ‘ B x 360 10 “ce ce ce ce 7 F < 436 9 ce “ce ce ce . es 4 537 8 “ce ce “ce a3 - : ” Z . J 681 7 ce “e 79 ce y y, Re 889 6 “cc ec (73 “ce - z - - 1210 5 (77 ce ce ce = 1742 4 ce ce ce ia 2 Py .3.) % (c9 (73 ce ce ; 4840 y (9 cc ce “ce 10890 1 cé ce ce ce 43560 DISTANCES FOR PLANTING. Standard Apples . : : : . 24 to 30 feet distant — Way Standard Pears : : ; Z . £6 to20) :* rt Standard Cherries . f : +p Loto 20° iid a a Standard Plums and Peaches . . Ate 16.“ es “ % Pyramid Pears on Pear roots : .: Oto 12). ce a . Pyramid Pears on Quince roots . once tO 20: -*” - a z.: Currants, Gooseberries, and Raspberries. 3to 4 “ “ Ogee Strawberries cree ee ae Wiese Ns pare or 1 foot in the row, fill the rows 3 fect apart. BEST SEASON FOR PURCHASE. 291 § Il. TRANSPLANTATION. When the trees arrive at the orchard they should be carefully unpacked, and the moss or other ma- terial about the roots removed, as otherwise it may promote decay. A deep trench should be dug, in dry, gravelly soil, and the roots set in properly to a considerable depth, that they may remain fresh. _If, from any accident, the top has become shrivelled, the trees should be buried root and branch until they become plump. The best time for the purchase of trees, even if not to be planted until spring, is undoubtedly the autumn. Between the sale in the fall and that in the spring, there is no season of growth, and those disposed of at the latter time have been left over from the former. ‘Therefore the order should be given as early as possible in the summer previous, if the cultivator designs that the nurseryman shall make a wise selection. If these trees are to be heeled in until the spring planting, the earth should be finely shaken about the roots, that no recesses be left for retaining the water or sheltering mice. After the earth has been banked up about them to a considerable height, it should be stamped hard. The trench must be, of course, where no water will stand about the trees, and not in the vicinity of heaps of weeds, old turf, or any other rubbish from which the mice can make a sally. 292 THE SEASON FOR TRANSPLANTING. The best season for transplanting most trees is, no doubt, the autumn. ‘The earth is then in good condition — dry, friable, and still containing much of its summer heat. This latter circumstance is of much. importance. It encourages the wounded parts of the roots to heal over, and to throw out numberless rootlets, which fix the tree in the ground, and enable it to start quickly and healthfully into growth with the first opening of spring. As we approach mid-winter, this terrestrial heat diminishes ; therefore, the earlier the process can take place the better. At the same time, it should not be before the tree has shed its leaf; for then the evaporation from the top would be more than the shortened root could sustain ; it would not find a recompense in the absorption at the root, and the top would shrivel. This same rule is of application after the buds have begun to swell in the spring, except that’ then the vital functions are just commencing, and the roots, being thus stimulated, are more liable to — furnish spongioles, and sustain the dratt. Altogether, autumn planting is on these accounts to be preferred ; yet it is somewhat dependent upon the age and style of tree to be set. Those which are young and succulent, or those varieties which are tender, might be injured by immediate exposure from the nursery to the vicissitudes of winter. Such should be heeled in, in some sheltered situation, for use in the spring. The aspect, too, may be such as CONDITIONS FAVORABLE FOR PLANTING. 293 would forbid the work being performed in the autumn. If strong winds prevail, the newly-planted tree will be thrown about, loosening the roots in the soil, and preventing the formation of rootlets by the constant strain which is made upon it in main- taining its position. ‘Trees planted at this season should always be protected by a mound of earth around their base, made hard by the foot or spade; - and if a stake is added, it will afford a still better support. Lhe condition of the soil most favorable to plant- ing, is when it is not wet, so as to be clammy or ad- hesive, but dry and friable. If the sky should be overcast, so much the better, as the roots will not be as likely to become dry. Strong wind is very unfavorable, as it dries the fibres, and hinders the planter from performing his work thoroughly. If the soil is wet, it cannot be placed suitably between the roots. No matter what care the nurseryman may exercise, it will be impossible to retain all the roots, as in the preceding diagram, as well as in the chapter upon fertilization, it is shown to what length they erow. When they are to be set, therefore, the ends of the roots and all bruised parts should be pared with a sharp knife, that the wound may be smooth. The cut should, if possible, be made from beneath, so that it will rest upon the earth when the tree is upright. The benefit of this operation is, that the 25* 294 MANNER OF PLANTING. fresh wound will send out roots immediately, while, if not pared, the ragged parts would decay, which would prevent the production of rootlets, and per- haps produce death in the whole root. The hole should be dug of sufficient diameter to allow all the roots to be spread easily in their natural positions, and several inches deeper than was originally re- quired by the tree. The fine surface-soil may then «be placed in the bottom until the hole is of the proper depth. If the roots are dry, they may now be sprinkled with a rose-pot, that the earth may cling to them more compactly. One person should hold the tree, while the other carefully places the roots, as the earth is finely sprinkled in. ‘The person spreading these cannot be too particular in their arrangement. If possible, the tree should be set, at first, about the height at which it is to stand, so that it will not require lifting after the setting is completed, which disturbs the position of the roots, and often breaks their tissue. But it must not be left too deep on this account, for the latter evil would be greater than the former. The tree should be set as deep in the ground as it was in the nursery. If the collar is below the surface, the tree will never thrive. ‘The pear upon the quince is an exception to this rule. ‘The quince stock is raised from a layer or cutting, and has no collar, and the ease with which it throws out roots from any part of its stem permits it to DWARF PEARS. 295 accommodate itself to any depth of planting. The union of the pear with it is not so perfect as it would be with its own species; therefore, if this point of junction is above the surface, a great strain is brought upon it by the wind, which sometimes results in its parting. This, of course, ruins the tree. The borer is very fond of the quince, and he makes his attacks at the surface of the soil. By | placing the junction three inches below the level of the soil, it is beyond his attack, and the pear stock, like a cutting, soon throws out roots, which strengthen the hold of the tree at the same time that they lengthen its longevity. If the quince decays, the pear roots maintain the tree in fruitful- ness. The question may arise, What is the advantage of placing the pear tree upon the quince stock at all, if it is to be on its own roots in the end? The union between the two has been said not to be perfect, because the pear is naturally a much more vigorous grower than the quince. Being united with the latter, it must receive nourishment only as fast as the quince would give it to its head. By this the pear is to a degree stunted or matured, and that slow circulation of the sap is induced which is promotive of fruitfulness. This may be encouraged to an extreme, and the cultivator who argues against dwarf pears, and complains of their stunted growth, want of productiveness, and yellow leaf, will be able, 296 AGE OF DWARF PEAR TREES. probably, to remember a time, it may be years be- fore, when the tree brought on this ill health by a too large crop. The addition of the pear roots give the tree greater strength, and consequently increased power of production. The period of barrenness before maturity in the pear on free stock is cut short by the quince, and the life extended nearly as long as the standard, if cropped judiciously. The life of pears upon the quince independently, has, I believe, been understated. Where blight or other diseases have attacked them, or exhaustion - has followed overbearing, their life will not probably exceed fifteen or twenty years at the most; but an observation of those from thirty to forty years of age, in the gardens of my esteemed partner, Hon. Marshall P. Wilder, which are still bearing crops, and the large number, of fifteen to twenty years of age, apparently in full health and productiveness, must lead one to extend this period. Some one may ask why these trees are not rooted from the pear. Formerly the importance of such deep planting of the dwarf was not rightly esti- mated, and the necessity of it has become impressed by the results of the experience of the cultivator, although it was taught theoretically more than two centuries ago. If manure has been applied broadcast, according to the preceding directions, there will be little need of using it at the time of planting; but if not, a PLANTING STRAWBERRIES. 297 good quantity of old rotten manure should be placed at each hole, and finely composted with the loam to be sifted in at the setting. If the dung used is not well rotted, or at least a year old, it must not on any account be placed with the loam, as it will greatly injure the roots of the tree, but must be used on the surface as mulching, which will be explained hereafter. When the tree is set, the ground should be made as firm as possible by treading. The fibrous roots of a grape vine should be spread out carefully; and it is well if the cane is laid down carefully. Each eye, in this case, will throw out a bunch of roots, and strengthen the vine. Strawberries, of old, were planted in beds, and were permitted to remain for several seasons; but the care required to keep out the weeds was very great, and a remunerative crop was seldom realized after the second year. Among the best growers, strawberries are now planted in rows two and a half to three feet in width, and about one foot distant in the rows. The ground is prepared as directed, and the runners of the preceding year, not plants which have borne fruit, are dibbled out like cabbage plants in cloudy weather in the spring. During the whole of this season they can be kept clean with a horse- cultivator and a hand-hoe. After producing one crop the second year from planting, they are per- mitted to make runners for a new patch, and then ploughed in, to make way for the plants the next 298 - SEXES OF STRAWBERRIES. spring. It scarcely ever proves to be good practice to let them remain another summer. By some they are grown in hills, and not allowed to extend; but the former method is productive of greater results. A variety of strawberry may produce blossoms, however, which are destitute of stamens, or the male element; or they may be so sessile as not to perform their office of throwing the yellow pollen upon the stigma of the pistil, so as to impregnate it, and the consequence will be utter or partial barrenness. Such plants are called pistilate, or female. Others there are where the pistil 1s imper- fect, while the stamens are fully developed. ‘These are called staminate. When the former are planted, every fourth or fifth line should be of the latter class, when the whole will be productive. But they must be of the same species; a haubois must be fertilized with one of the same. There are some varieties which have both sexes well developed. These are called hermaphrodite; but they are not generally as great bearers as the pistilate sorts. The movement of large trees is accomplished with great labor. Mr. Stewart McGlashen, of Great Britain, invented, a few years since, a wonderful machine for digging and removing those of almost any size. An account was published of the first experiment in the journals of the day. We do not know whether it has been brought much into use, but give a description of it that it may perhaps lead DIGGING TREES BY MACHINERY. 299 to something else, which shall be of general utility. This machine was applied to a tree fifty feet in height, and of more than five feet in circumference at the trunk. “The first process of Mr. McGlashen, is to lay down a frame of T-iron—in this case, ten feet square. He then takes cutters, made of malleable iron, one foot broad, and three feet deep, or, in- cluding the head and neck, four and one-half feet. These cutters are driven, by a wooden mallet, into the soil to the depth of three feet all around, and being inserted sloping inwards, they give to the enclosed mass the form of a square blunted wedge. A rod of iron is then laid along the top of the four rows of cutters, and extensive rods going across the frame force the heads of the cutters apart as far as possible, and, consequently, cause the point to con- verge at the bottom. * A clasp or gland is then put around the trunk of the tree, with a mat under it to preserve the bark. Two parallel beams are then laid across the frame, and fastened to it with chains. The above constitutes the frame to be raised. The means of elevating it is a carriage (which also serves the purpose of transportation), consisting of two strong common carts, one at each end, with bolsters raised above the axletree of both, and on which bolsters rest two massive parallel beams secured to them with strong bolts. The height of the beams from the ground is about six feet. They, of course, 300 DIGGING TREES BY MACHINERY. enclose the tree. The process of lifting is ex- ceedingly simple, the whole being accomplished by _the power of the screw. The screws are four in number, and so arranged as to make them lift equally. They are made fast to the beams of the frame, and are worked by men standing on planks across the beams of the carriage. The frame and enclosed mass are slowly raised, and the tree, with gentle oscillation, moves erectly upwards. ‘The tree may, it is evident, be raised without the use of any ropes, — the solid mass of earth effectually balancing the trunk and branches, — but they were used on this occasion as an extra precaution. After about twenty minutes’ working of the screws, the tree was completely raised from the pit, the operation having been effected in an easy and gradual manner, and amidst tributes of admiration from all around. It was not the intention to remove the tree exper- imented upon; but the means of removal being exhibited and explained, all seemed satisfied with the feasibility of the apparatus provided for the purpose. A strong case was shown for the enclos- ure of the ball of earth when the tree is to be removed to any distance. In moving, the tree still maintains its erect position. ‘The propelling power, when horses cannot be used, is by a winch in front of the foremost cart, and block and tackle; but when the way is clear and the road good, horses will do the work safely, and more expeditiously. DIGGING TREES BY MACHINERY. 301 The tree is lowered into the pit prepared for it, on the same principle. “ Tt is calculated that, in this instance, the weight lifted was thirteen or fourteen tons ; but the inventor and patentee states that, by an enlargement of the apparatus, he could lift almost any tree.” 26 CHAPTER IX. PRUNING AND TRAINING. THE AMPUTATION OF THE LIMBS OF A TREE BASED UPON SCIENTIFIC PRINCIPLES — FACTS NECESSARY TO BE KEPT IN MIND: IMPORTANCE OF A SHARP KNIFE — THE METHOD OF MAKING THE CUT— SEVERE PRUNING PRODUCTIVE OF VIGOR AND STERILITY —THE REMOVAL OF A PART OF THE WOOD OF A WEAK PLANT STRENGTHENS THE RE- MAINDER — IMPORTANCE OF SUNSHINE TO ALL PARTS OF THE TREE — CIRCULATION OF AIR—DISTINGUISHING THE PECULIARITIES OF THE VARIETY — THE PREVENTION AND CURE OF DISEASE — THE SEASON: SPRING AND SUMMER — PRUNING AFTER TRANSPLANTING — TRAINING THE PEACH AND NECTARINE: SEYMOUR’S SYSTEM — OBLIQUE ROD— OBLIQUE DOUBLE ROD — DOUBLE OBLIQUE ROD — STANDARD — HOR- IZONTAL TRELLIS-TRAINING — THE APRICOT — THE PEAR — STANDARD, QUENOUILLE, WINEGLASS, ETC. — THE CHERRY —THE VINE —THE SYS- TEM OF THE IONIAN ISLANDS —SIMPLE CANE—SIMPLE THOMERY, PLAN PRACTISED IN OHIO — THE CURRANT —THE GOOSEBERRY — THE RASPBERRY — THE BLACKBERRY — THE STRAWBERRY — ROOT-PRUNING. HE amputation of the limbs of a tree is based upon scientific principles ; and when it is done indiscriminately, or at variance with these, disease or death may be the consequence. ‘The wild tree is naturally of strong growth, at the expense of fruitfulness. The designs of pruning are to check undue luxuriance, and induce the immediate pro- duction of fruit; to reduce the size of the tree to such an extent that it is manageable with ease; to METHOD OF USING THE KNIFE. 303 enable it to sustain itself from injury while bearing heavy crops; and to adapt it to the peculiarities of climate, soil, or position. The facts which are to be kept in mind as neces- sary to good pruning are — First, the importance of a sharp knife, with which to perform the operation. ‘The wood of all plants is composed of cells and of woody fibre. If a keen instrument separate these, the neighboring parts are not materially disturbed, and their action will be continued, and the wound healed; but if the knife is duil it tears these one from another, and disarranges the tissue surrounding, so that, unless the plant is very vigorous, the outer parts decay, and the wound becomes an unsightly scar. Second, the method of making the cut... So many instances occur of ugly knots disfiguring the tree from an utter disregard of this, that the following plates are inserted. —— j — eS : > — = ES —— Ss fxs iy ve) F] TALS ev k Hi Bt aia Hy Pa ih \\ i 1 The remarks under this head were suggested by an article in the Gardeners’ Chronicle of 1847, and the plates are thence derived. 304 THE EFFECT OF SEVERE PRUNING. (a) represents the proper cut, at an angle of about forty-five degrees, with the bud at the back. As the bud grows, the bark is thrown over the wound, and it becomes scarcely distinguishable. (6) is a cut in which the bud is left so much ex- posed that drying winds or accident may destroy it. In either case the next one below will push, and the intermediate space become an ugly knot. (c) represents the wound usually made in pruning by beginners or women, resulting from a dull knife or want of strength to make a firm stroke. The disadvantages are evident, as the surface to be healed is more than double that of (a). (d) (e) (f) are cuts made at hap-hazard ; in which the bud is not liable to take so straight a direction; and an unsightly joint is left above it. Third, severe pruning produces vigor, but sterility. There is a certain balance which is to be maintained between the roots and the branches of a tree; and if this is disturbed, it seeks to restore the equilib- rium before it will produce fruit. Therefore, if the branches are continually cut while the roots remain the same, the whole force of the tree will be spent to accomplish this by increased vigor. If a tree already possesses a quantity of fruit-spurs, and the knife be used severely, this force may transform them into wood-buds, and the tree be filled with spray-wood in consequence. Fourth, the removal of a part of the wood, when the IMPORTANCE OF SUNSHINE. 305 plant is weak, strengthens that which remains. This was made so patent under the last head, that it requires no additional remark. Fifth, 7¢ 7s important that the sunshine reach every part of the tree. If a close, thick head is formed, the leaves are crowded together, and none of them act as freely as they might. Consequently, they are weak, light-colored, sickly, and produce debility in | the whole tree. But if a part of the limbs is removed, or never allowed to form, so that each leaf can expand independently in the sunshine, the foliage becomes active and healthy. Although the number of leaves is diminished, yet their superficial area is increased, and the strength and longevity of the tree augmented. The pear tree naturally grows to a considerable height, having a bare stem of several feet, and a spreading top, upon the exterior of which the fruit is produced, when it has access to the sunshine. One of the objects of pruning is to dispose of this bare stem, and keep the tree in such limits as will be within reach of the operator, and so low as to be protected from winds which would otherwise throw off the fruit. But as the tendency of the plant is always upward, it will soon go beyond the boundary unless we prune it. If this be merely the cutting back of those shoots which exceed the limit pre- scribed, the tree will soon become filled with brush, to the exclusion of sunshine and of worthy fruit. 26* 306 NECESSITY FOR A CIRCULATION OF AIR. Some plan must be pursued from infancy which shall provide against these evils; this will be de- tailed hereafter. Sixth, the importance of a circulation of air through the head of the tree is closely associated with that of light. As the latter is composed of rays of different colors, acting chemically upon vegetation, some absorbing one ray and some another, so the rust- ling of every leaf is necessary to secure to it those atmospheric substances which aid it in the elabora- tion of its sap. To produce this the same means are employed as with the last, —a loose, open head. Seventh, the formation of an equal system of branches. All trees throw most of their vigor into a strong central shoot. This is while they are young; with increased age it is generally lost in the mass of vertical branches which form the head. The horizontal Lmbs, which were produced at the outset, receive so small a share of sap, that they become insignificant. By pruning, this energy and vigor should be equally distributed. The tendency upward is so great that in those trees which have been trained horizontally for a long time, a single bud, if allowed to escape the knife of the gardener, would soon turn the balance of strength in its favor. All systems of pruning contain this principle to a ereater or less extent. To accomplish it one must be aware of the nature of the buds upon a shoot, and the difference in THE PECULIARITIES OF VARIETIES. 307 result to be obtained from cutting to a bud near or at a distance from the base of ashoot. On account of this tendency upwards, if unmolested, the eyes near the terminus of the last season’s growth would burst and grow, while those at the base would remain dormant. But if the shoot is cut off to these latter, they are stimulated and produce stronger growths than those at the terminus would have done. The fruit-bearing buds are scarcely ever those at the base, but are generally about two-thirds of the length of the shoot from it, although sometimes terminal. ‘Therefore, these dormant buds at the base produce shoots which will not fruit so quickly, but continue to elongate. Horizontal limbs grow slowly ; and it is of importance to secure buds from the base of the shoot to form them. If the hmbs are of equal strength, and light and air are admitted freely, they will be clothed with fruit-spurs to their very base, where they are capable of sustaining ten times as much weight as at the terminus, and where the risk of loss by winds is very small. HKighth, the importance of distinguishing the peculi- arities of the variety to be operated upon. Some sorts are very vigorous in their character; others weak ; and some of decumbent or weeping habit. In prun- ing them the plan should be conformed to these peculiarities rather than to a uniform system. Ninth, the prevention and cure of disease. If the subject has become exhausted by overbearing, and 308 THE WINTER PRUNING. throws out nothing but sickly foliage, the removal of a part of the top, with judicious manuring, strengthens the remaining parts. Canker and other diseases are often formed by too close pruning when the roots are very strong. Withholding the knife entirely will help to stay it, although a more effect- ual cure is wrought by root-pruning. The season of pruning. ‘This depends upon the end to be attained. As a general rule these seasons are two, — winter and summer. If the winter pruning is done in the autumn, as soon as the growth is ripe there is danger from a warm season following that the tree would push forth a soft growth, on account of the stimulus given by severe cutting. When done in early winter, the end of the shoot which is cut does not heal, because the energies of the tree are dormant, and it becomes an unsightly black knot, requiring a pruning in the spring to remove it. If the invigoration of the tree is the object, this should be performed in the spring before the buds have started, and after all danger from severe frost is past. If it is desired to check undue luxuriance, it should be done after the buds have well started, or are even in leaf. The plum is very stout in its growth, and the more it is cut, the more luxuriant does it become. When it is neces- sary to use the knife, it should be when the buds are swollen, or the tree is coming into leaf. As it THE SUMMER PRUNING. 309 has then expended considerable strength in bursting these forth, and is deprived of some foliage, it weakens the remaining parts, and induces that con- dition which is favorable to fruitfulness. If it had been performed earlier, all the force of spring life, which would have been distributed through all these buds, is concentrated in those remaining, and _ the result would have been still greater vigor and less fruitfulness. No precise time can be assigned for summer prun- ing. It must extend through a great part of the | season of growth. It should be used in reference to the winter pruning. All gourmands, or watery shoots, which are taking a wrong direction, should be pinched before they have become so strong as to draw necessary nourishment from other parts. All stone-fruits are lable to exude gum from their wounds after severe pruning, so that summer prun- ing with them should be only the prevention of the formation of shoots by disbudding them before actually grown. If some should escape attention, it will be better to permit them to remain until the winter pruning, when the sap is moving sluggishly, and the wound will heal readily. With those fruits which bear upon the growth of the last season, as the peach, the laterals, which are designed for pro- duction, should not be disbudded or shortened to the proper length until the winter pruning, else - they would burst all the eyes upon them, and fill $10 - PRUNING AFTER TRANSPLANTING. the tree with soft shoots, which would be likely to injure it, by inducing late growth, which would be hazardous during the winter. The season for pruning the vine will be considered particularly hereafter. Pruning after transplanting. In transplanting, the majority of the roots will under any circumstances be lost. We have seen before that the tree while growing maintains a certain equilibrium between the roots and the top, and that the growth of the latter results from that of the former. ‘Therefore, after transplanting we must so prune the top as to secure the balance, which had been broken in the removal of the tree. ‘They should therefore be cut back very severely, when they will develop a few healthy leaves which will aid the tree in establish- ing itself, much more than the weak foliage which would be thrown out if they were not pruned. Trees planted in the autumn need not be cut as closely as those set in the spring, because they will be in a condition to throw out new roots imme- diately to support a larger top. This figure represents a peach tree ge, and the transverse lines indicate where it should be cut. ‘The main stock is left at not more than at plantin eighteen inches in height, and all the = limbs are trimmed to an inch or two from the stem. SEYMOUR’S SYSTEM. 311 Training the peach and nectarine. Many methods of espalier training are in use in Europe, but among them that recommended by Mr. Seymour seéms to be, perhaps, particularly desirable. The arms which form it are, of course, permanent, and are kept in position by tying to the trellis, at proper distance from each other. The laterals, represented above, start from these. It is intended that each shall bear a single fruit, which is allowed to grow about midway from its base to terminus. (a) represents where the fruit is to be borne. (5) the lateral for the next year. The buds which push are also pinched after making three or four leaves, with the exception of that at the terminus, which is allowed to grow a little longer, and the lower bud, which extends to form a lateral for the succeed- ing year. At the winter pruning the old lateral is cut as close to the main limb as possible without injuring the new shoot. 312 OBLIQUE ROD TRAINING. Oblique rod training. 'This system has recently been introduced into our country as applied to the pear. In Europe it was found to be a simple and expeditious method of growing the peach, and with- out doubt might be applied to other fruits. It is claimed that it is superior to the other styles of trellis or wall-training, on account of the ease with which the rod can be replaced. It has been prac- tised in the vicinity of Paris since about 1840. \ \ \ \ \ —=\ \\ ~\ \ ‘ ak, Ke \ \\ » \\ i 4 NX NY (- \ \ = ¥ \ \ ets xy \Ye ) \\ \ \ \ \ \ Seeeeeeiel > \ —\ ~ ———- : ——— : ———. — The trellis should be about ten feet high, and the trees trained at an angle of nearly forty-five degrees. After planting, the rod is cut to about eighteen inches in height. The buds bursting must be pinched and treated like those upon the arms of an espalier, in order that they may produce fruit, with the exception of that at the terminus, which is allowed to grow. If the shoot be strong, it may be retained for three feet, and so carried up by degrees until it reaches the proper height. On the left it will be seen that there is a vacancy to be filled. OBLIQUE DOUBLE ROD TRAINING. 313 This is done by bending down the growth at the end of the first year, and permitting the uprights to proceed from it. On the right, after the rod has become formed the lower bud is allowed to burst, and throw up the remaining shoot. Oblique double rod training. ‘This is practised in some parts of France, and is somewhat similar to the simple rod-training. ‘The trees are four feet and four inches apart. A single hmb is first grown, and when it is strong enough, is bent to the angle (a) (b), and the lowest bud at the point where it bends is allowed to make another arm, which is afterwards placed as in (c) (d). All these inclined methods of training the branches have for their object the improvement of the fruit in quality and quantity; the bend causes a stagnant flow of sap, which is favorable to that object. Double oblique rod training. ‘This differs from the simple method only in the fact that the branches are placed at one foot apart instead of three, and that it is composed of a single tree. Great care 27 314 DOUBLE OBLIQUE ROD TRAINING. should be observed that one side does not become stronger than the other. / ‘Ge } VA : N Y Z — \ ' fj Y pp . ( \\ S ‘i "J G \ Ss | y/ y Y \ \ ; Y / fj VJ N \ ) y y L ; \ | ye ff y IN \) \ ) i f/ YW ff ‘ ‘ } \ ‘I SS ‘ Yi N core: \ | Y oe , Ny Sela 4 —— Se i A style of training practised by M. Lepere, near Paris, is given on page 315 as figured in the Gar- deners’ Chronicle for 1857, page 233. All these styles, it will be perceived, are designed for the trellis or wall, because, in the countries where they originated the sun is not as powerful as in the United States, and by means of these helps they receive an increased amount of heat by radia- tion. ‘This is not necessary here, and therefore the standard is the more favorite form of growing all fruits. The peach is not so short-lived a tree, when properly cared for, as some would have us believe ; but, with the neglect which it too often receives, it soon falls a prey to disease. Standard training. By reference to the first part of this chapter, under the head of “ Pruning after transplanting,’ it will be found that it was recom- mended to cut down the yearling tree to a few inches. This is to encourage the branches to start Lien) oe) ALPHABETICAL TRAINING. 316 STANDARD TRAINING. near the ground. The majority of neglected trees are broken down during the production of their fruit, by its weight on the end of very long limbs. bs " Hf 4 Ys mi os, __ Wi (a) represents the peach tree at the end of the first year, the arms having been formed, which show the skeleton of the tree. These are cut back at the winter pruning to one or two feet, according to their strength, and laterals are allowed to form and bear fruit at every bud, except that at the ter- minus, which is to grow. After two or three years the tree presents the appearance of (b), and is to be pruned so as to keep it within its prescribed limits, which should be less than ten feet in height. But in many of our northern districts the peach is injured seriously by the vicissitudes of climate. In such positions it is evident that the standard tree would not succeed, nor the espalier unless cov- ered in winter, which its size and form preclude. The fact, which has been repeatedly observed, that limbs near the ground fruit when others do not, even when there is no snow of consequence to cover them, has suggested the following diagram. Figure 1 represents the tree after the growth of HORIZONTAL TRAINING. 317 the first year; it having been cut down at planting to one foot. ‘The second year the limbs are drawn down horizontally and tied; the branches having the appearance of a wheel laid upon its side, which, when clothed with spurs, and seen from the top, is hke figure b. But, in certain sections, even this is attended with uncertainty, and still more precaution is ne- cessary. In such cases, the cultivator should resort to the inclined trellis. Posts about one foot in height are set in the ground for the front of the trellis, and those for the back are two feet. Rails are then laid from post to post, and slatting across | them. The tree having been | planted before the trellis, is ¥- cut to about a foot in height, and at the end of the season the arms are laid in their proper position upon the slats, the after pruning being the same as that of 27* 318 PRUNING THE APRICOT. an espalier. That they may be protected from the winter’s sun, which is the cause of their injury, straw, seaweed, or some other light material should be shaken over them in so small a quantity as not to afford shelter to mice; or a second trellis may be constructed over the first which shall be covered with such materials, or with loose boards. The Apricot. ‘This is trained by the espalier or standard methods, in the same forms as those ap- plied to the peach and: nectarine. ‘The standard is always to be preferred where it is hardy. The remarks of Mr. Loudon, in his “ Encyclopedia of Gardening,” upon the pruning of the apricot, are given at length. “ ‘The winter pruning should either be performed at the fall of the leaf, or at mild intervals from that time to the beginning of March” (in northern lat- itudes just before the swelling of the bud). “If it is deferred until the buds begin to swell, the prom- ising shoots can be better distinguished. This pruning comprehends a general regulation both of the last year’s shoots and of the older branches. The apricot bears upon the wood of the previous year, and upon spurs arising from that which is older. “A general supply of the most regularly-placed young shoots, must be everywhere retained for successional bearers the ensuing year. Cut out PRUNING THE PEAR. , 319 some of the most naked parts of the last two years’ bearers, and old branches not furnished with a com- petent supply of young wood or with fruit-spurs ; cut, either to their origin, or to some well-directed lateral, as most expedient to make room for training, a new supply of the young bearers retained; and cut away all decayed wood, or old stumps. Gen- erally observe in this pruning to retain one leading shoot at the end of each branch; either a naturally placed terminal, or, where a vacancy is to be fur- nished, one formed into a proper leader by cutting to it. Let the shoots retained for bearers be mod- erately shortened ; strong shoots being reduced the least — one-fourth or less of their length; from those which are weak take away one-third, and sometimes half. ‘This will conduce to the produc- tion of a competency of lateral shoots the ensuing summer, from the lower and middle placed eyes. As small fruit-spurs, an inch or two long, often appear on some of the branches of two or three years, these spurs should generally be retained for bearing, and thick clusters of spurs, which are apt to be formed upon aged trees, should be thinned.” The Pear. This fruit does not, like the preced- ing, bear upon the wood of the previous season, but on permanent spurs; and the method of treating them is important. The accompanying figure from the Gardeners’ Chronicle, represents “ (a) as pro- 320 STANDARD TRAINING. gressing a blossom bud, while (6, b) are already such, known by their plumpness, and from early spring these buds exhibit signs of active vegetation; but in(a)the surrounding scales re- main undisturbed until late. ‘The scar at (c) is where a portion of the spur which bore fruit has been cut back, at the winter pruning; after (b,b have produced, they also are cut back to buds likely to form at their bases, as did those at that of (c).” Unless this was done, decay would commence in the old spur, and spread among the tissue of the wood, until the whole spur was destroyed. The causes which render it necessary to train the pear against walls in England, are not of force in this country. The summer is of such warmth as to perfectly mature the fruit without the aid of artificially radiated heat, and the standard is gen- erally preferred. Standard training. A bud of one year’s growth will, of course, be a straight shoot, having buds from the base to the extremity. As the sap always seeks the highest point, those buds which are at STANDARD TRAINING. 321 the terminus will grow most rapidly. If the shoot has been strong, this would carry the limbs of the tree too high, and leave the stem very slender ; therefore it is cut back to the height from which it is desired to have the highest limbs start, which should be from two and a half to three feet. =—_—— A= ———- SS — SSS SE = —™ Se ae At the close of the second year the young tree will present the appearance of figure b. Then four shoots have been formed, the central leader being the highest. At the next winter’s pruning the tree 1s cut at the point indicated by the trans- verse lines. The lower branches are left the longest, because the force of the sap tends upwards, and these will elongate slower. The next summer the buds upon these limbs are pinched to three or four leaves, except two at the terminus, which are allowed to grow. At the end of the third year the tree appears as in figure a. The transverse lines show when the third winter’s pruning is to be performed. The same course should be pursued until the tree has attained about ten feet, when these terminal 322 QWENOUILLE TRAINING. shoots, which are allowed to grow during the sum- mer, to draw up the sap into the fruit-buds below them, are cut back to one eye every year. It may be suggested, how can such a course be pursued with a tree thirty or forty feet in height? The answer is that a good cultivator will not allow his trees to attain that height. While summer pruning generally holds the vigor of the tree in check, yet it is sometimes necessary to resort to root-pruning, which will be described in another part of this chapter. After the tree has arrived at full size, all the pruning which is essential, is, cut- ting back the growths upon the end of each limb, and trimming the spurs. The method of pruning the dwarf pear is the same as that upon the free-stock. By proper train- ing the latter can be planted as near as dwarfs, and will succeed as well as when at a greater distance. Quénouille training. ‘This system is founded upon the fact that the fruitfulness of a tree is augmented by plac- ing its limbs horizontally, or in a weeping position. They are tied to stakes driven in the ground, and made to assume the form represented in the figure. By the same means, the balance can be restored to an espalier, when one side has gained an advantage over the other, by depressing the thrifty limbs. In this WINEGLASS TRAINING. yt way refractory trees can be forced to become fruit- ful. With these exceptions the style has no prac- tical value, as all bearing trees assume this habit, more or less, with age. Wineglass training. The permanent arms, which are five, start from a point about eighteen or twenty inches from the eround. ‘These are not allowed to make any minor branches. ‘The shoots, as they make their appear- ance, are shortened back to three or four leaves, to encourage the forma- tion of fruit-buds. ‘The terminal eyes are allowed to extend at will, and are cut back at the winter pruning to one or two eyes — suffi- cient to secure one for a shoot the next summer. If the tree is very vigorous, the shoots should not be pinched too severely, else it will cause the fruit- buds to become transformed into wood-buds, and erow; but they are permitted to extend, and are then shortened at the winter pruning. It is urged in favor of the above, that in violent winds the branches have full sweep to swing without interfer- ing with each other, and the spring given from so long a limb gives so easy a motion as to hold the fruit fast, while it combines all the advantages of the pyramidal or standard pruning. On the other hand, it is contested that the weight of the fruit upon the terminus of these limbs, at such a distance 824 PRUNING THE CHERRY. from the fulcrum or base, is often so great as severely to strain, if not to break, the branch. This argument is easily overthrown on two grounds, and it therefore resolves itself into a mere matter of taste. 1. Each limb should not possess more than from twelve to eighteen pears. 2. If the branches should by neglect or bad judgment be allowed to produce more, the elasticity of so long a branch is so great that the end of the lhmb could almost touch the earth with its weight of fruit without injury. The standard is, however, more natural, simple, and more beautiful. There are some positions where an espalier, or wall tree, may be grown where a standard could not, and it is therefore proper that we enter more large- ly into those plans which are most practised in those countries where they are favorites. Mr. Loudon, in his valuable Encyclopedia, pub- lishes the following forms, which are used in England for small trees (see page 325). The Cherry. This fruit is so uncertain a crop when left to itself, and yet so delicious, that it is well to devise some method of pruning which shall, if possible, remove the obstacles to its culture. It is of very vigorous habit, even upon poor soils, and in northern climates does not always ripen its wood sufficiently to escape unscathed the vicissitudes of the winter. While the tree is forming, the young ESPALIER TREES. 325 28 326 PRUNING THE VINE. shoots should be directed properly, and the winter pruning should not be performed until all danger of cold weather is past. When it has attained the height which we desire (not more than fifteen feet), the pruning should be done in a way to check its luxuriance. Root-pruning will accomplish this, but a more mild operation may be attempted first, and the former used as the next resort. ‘This tree pushes its buds with great force in the spring, and expends considerable strength in the process. Therefore if pruning is done after the buds have well swollen, we shall probably arrest its undue vigor. The morello varieties bear fruit upon the wood of the previous season, and regard should be had to a constant supply of young wood, and that which has produced should be cut out. The Vine. ‘Totally different from that of any of the plants to which we have referred is the pruning of the vine. It produces its fruit on wood of the same season’s growth, and its vigor is therefore to be encouraged. As the size and quality of the bunch and berry are influenced considerably by the strength of the cane, it is evident that, for constant fruitfulness, a succession of young wood must be secured. Almost as many methods of training the vine have been recommended as men who grow it, each having advantages, yet all being similar in the endeavor to keep the trellis covered with bearing wood. FAN-TRAINING. 327 When the vine is planted, it should be cut down so as to leave one eye to grow. Some accident might destroy this, however, and two or three should therefore be left at the fall pruning, when those which are superfluous should be destroyed. ‘The first season this bud should throw a straight shoot of several feet. During November it should be cut back to five eyes; if it is delayed until spring, the wound will bleed, weakening the vine, and causing the shoots to start with less vigor. ‘This stump will throw five branches, which are spread out on the trellis like a fan. At the next fall pruning, these arms are shortened, leaving two eyes upon each, and the next summer the vine possesses ten arms. The vine has now attained it stature. At the next fall pruning, beginning at the bottom, the first lhmb is cut within two eyes, so as to secure one, and the next to nine, and so on alternating two eyes and nine. ‘The next summer, the five arms which have nine buds will fruit from each, and the lateral should be pinched within two joints of the bunch of fruit; the other five limbs throw five strong shoots, for fruiting the following season. At the next fall pruning the bearing arm or branch should be cut back to grow, while the other is left with nine eyes to fruit ; thus each arm fruits on alternate years. Sir Humphrey Davy, in his Notes and Observations on the Ionian Islands, says that the pruning of the vine is such as would be pronounced severe even in 328 SIMPLE CANE TRAINING. the wine regions of France. ‘The value of the pro- duce is so small that the cultivator cannot afford to use manure, or stakes to support the vines. The poorer the soil, the more vigorous do they prune. “In the rocky situations of the district of Erisso, in Cephalonia, where the vine is planted in the crevices of the rocks, only one or two of the last year’s branches are preserved, and of these the greater part is removed, only two or three buds being allowed to remain.” This practice is proved to be beneficial. It is urged that the branches of the vine extend further than the roots, and unless severe pruning 1s practised in poor soils the branches will exceed in proportion, and the vine become weak in consequence. Simple cane training. The vine produces fruit. upon the new wood, and con- sequently a succession of it must be secured. A very simple method is that repre- sented in the figure. The first year the vine is kept to a single cane. At the winter pruning, which takes place after the fall of the leaf, and the ripening of the wood, the cane is shortened back according to the strength of the growth, and the next season the terminal bud is allowed to extend, and one of the lower buds to start also, to make the cane upon the left. As soon as the strength of the vine will per- SIMPLE CANE TRAINING. 329 mit, the cane upon the right is carried up, and the vine is ready to produce fruit. ‘This is borne upon the laterals which start from the buds on these canes, and which are pinched off after forming two leaves beyond the bunch of grapes. At the winter pruning these laterals are cut back to the lowest bud, which is to cast that for the next year. Simple Thomery. This, although not so easily covered as the preceding, is well for cold or extreme latitudes, as it is for all others. The permanent arms, being so near the surface of > —_——__ Sr 2 Se er SS the ground, are not very lable to 5 : suffer from extremes. For if the temperature becomes suddenly cold after extreme heat, to such a degree as would be ruinous to canes higher from the ground, yet these receive radiation of heat from the earth, which enables them to cool off more eradually. The first season the vine is trained to one cane, and at winter pruning is cut back to two eyes; each of these will make a new cane, which is cut the next winter to about three feet, or rather pruned to the same number of sound eyes. These canes are bent down, and make the permanent arms, from which the canes 28* 330 TRELLISES USED ON KELLY’S ISLAND. will grow the next summer. These canes are then cut back to two eyes, and each eye may be allowed to bear one or more bunches of fruit, and produce a cane of about three feet in length. Care should be taken that the shoots are of equal length, as if one gains the ascendancy it will rob the others. Systems to be practised where there is no need of winter protection. ‘The training of vines upon Kelly’s Island, Ohio, seems to be more or less peculiar to the locality, and as few failures have occurred, it is well to investigate it. Mr. George C. Hunting- ton, one of the vignerons of that island, gives a description of the trellises used. ‘They are con- structed of posts set in the ground, eighteen feet distant in the lines; on these is stretched No. 9 annealed iron wire, weighing about one pound per rod, and therefore, if the rows are eight feet distant, requiring about one thousand pounds for the acre. In placing it a cylinder is used of the proper size to take a coil of wire. This is set upon a horse, like a grindstone, when it uncoils much smoother, and with less twist than if laid flat upon the ground. It has been found that the strain of the whole trellis comes upon the posts standing at each end, where the intermediate ones are bored to admit the wire through them, but by straining each length as the work proceeds, and fastening it with a staple driven hard, the strain is more equally distributed. Three lines of wire are made to each trellis. The end SYSTEMS PRACTISED IN OHIO. 351 posts have a brace inside to support them. A better and more permanent, although more expensive method of sustaining the posts, is to fix a stone under ground outside the end-post, with a rod reaching from it to the top of the former, which is tightened at pleasure by means of a coupling iron. Figure (a) represents this, and (b) the old methods. Mr. Huntington says that the plan of training is one of three canes in the form of a fan. ‘These are cut back after bearing, to single eyes, which produce others, while the young canes that have been made at the same time are retained for fruiting the next year. Plan practised in Ohio. This is thus described by Mr. Buchanan, in Elliott’s American Fruit Grower's Guide. “In the spring” (at planting) “cut the young vine down to a single eye at first; if two are left for greater safety, take off one afterwards, drive a stake six or seven feet long firmly to each plant. Locust or cedar is preferred, but oak or black wal- nut, charred at the end, or coated with coal tar, and driven into the wood, will, it is said, last nearly as 332 PLANS PRACTISED IN OHIO. long. Keep the young vine tied neatly to the stake with rye or wheat straw; pick off all suckers, and let but one cane grow. “The second spring after planting, cut down to two or three eyes, and the third to four or five, pinching off all laterals, and tying up the vines. The third year they will produce a few grapes. Train two canes to the stake this year, and take off laterals. Pruning the fourth year requires good judgment, as the standard stem has to be established. Select the best cane of last year, and cut it down to six or eight joints, and fasten it to the adjoining stake in a horizontal position; tie to the stake at the top, or bend it over in the form of a hook or bow, and tie it to itsown stake. This is the bearing wood. The other cane, cut down to a spur of two or three eyes, is to make bearing wood for the next season. Give the shoot the first tie to the stake, at} i a3: i i Woe pad = = SSS a Oe FO are Second year, Third year, Fourth year, Fourth year, before pruning. before pruning. pruned. summer training. nine inches from the ground, and the second nine inches above this. RENEWAL SYSTEMS. O03 “In the succeeding, and all subsequent years, cut away the old bearing wood, and form the new bow, or arch, from the best branch of the new wood of the last year, leaving a spur as before to produce bearing wood for the coming season, thus keeping the old stalk of the vine down to within eighteen to twenty inches of the ground. The vine is thus within reach and control.” Some grape-growers prune according to a renewal system, in which only two canes are used. ‘Thus while the cane at the right is bearing a crop, that on the left has been growing to take its place the next year; when the former will be cut to one bud, and make a new cane for the alternate year. ‘Those who practise this urge that strong buds are formed, which produce the finest fruit, and although this may be, and is, true to some extent, yet, as Mr. Charlton has said in his work upon the vine, the cutting off such a large proportion, and leaving so little per- ennial, structural base is of very doubtful economy. It must keep the plant in constant excitement, which is likely to result in disease and premature debility. The following is the same principle applied in a more complex form. ‘The first year the central cane was allowed to grow to half its present height. Upon that is produced fruit the second year, while 304 RENEWAL SYSTEMS. it added as much more to its height, and the cane on the left also in the second year grew to half its present length. The third year the vine had the appearance of the figure. The top of the central cane, and the lower half of the left, produce fruit ; and the lat- ter adds to its length, while that upon the right forms itself, as in the above representation, upon which to bear the next season. An easier system of renewal is represented by the following. Every alter- nate bud upon the arm makes a cane while the other bears grapes. The next year the former bear, and these are cut back to one eye to push a cane for the next season. The celebrated Thomery system is thus given. A wall is erected about seven feet high, and before it a trellis is placed. When vines are trained upon poles brought together at the top, a hoop should be inserted, to give opportunity for a free circulation of air. The Currant. This fruit should receive an over- sight in the summer to see that no improper or unnecessary growths are made which shall interfere PRUNING THE CURRANT. 339 with the limbs that are designed to remain; and also that suckers, which make their appearance, may be checked. ‘This latter should not be done by simply cutting them off, which would only in- duce a more vigorous growth; but they should be twisted off, and then the tissue of the wood will be so far destroyed as to prevent its throwing a new shoot. ‘The bush should not be restrained to one stem, because in the frequent attacks of the borer the plant would be entirely destroyed; but two or three stems may be allowed. ‘The currant bears fruit on spurs from the old wood, as well as upon the new ; therefore if any of the superfluous shoots of the last year are cut back, an inch or two should be left on which spurs may be produced. All the old wood which has become unfruitful should be cut out, to make room for some of the young limbs. Very many successful growers of this fruit in Eng- land have cut back the growth to a few inches, when the berries begin to color, and have thought that it greatly improved the quality of the fruit; but in this country such treatment would be far from > judicious, as our sun is so powerful that it would cause them to shrivel and dry, as do the common Dutch varieties under ordinary treatment. The shade afforded by the young shoots is not as injuri- ous here as the deprivation would be, as affecting the length of the season. 336 PRUNING THE GOOSEBERRY. The Gooseberry. Maher states that if the goose- berry bush is crowded with superfluous shoots of the present season, they should be thinned so that the fruit will not have want of light and air; but this pruning must be moderate. At the winter pruning, in early spring, all the unnecessary growths can be removed, together with those which bend too low and drag upon the earth. The finest specimens of this fruit are produced upon the young wood of the preceding year. In general the shoots may not be pruned at all, except when they extend beyond the limits, when they may be cut back to eight or ten inches, but not shorter, for it would induce a superfluity of wood. ‘The gooseberry bush is seldom retained in bearing for many years in the gardens of the most successful growers. It bears its best fruit during the fourth or fifth year, after which it depreciates each season. The gooseberry is the pride of some gardeners, and great pains are taken to make the bush beautiful as well as productive. Those varieties which are naturally upright in their growth should be planted at a distance of five feet. A central stem is carried up, and from it the branches proceed, which are cut back so as to form the bush hke a pyramid. ‘The limbs are not allowed to start within a foot of the ground. When the plants have completed their growth, they will be about six feet high. The weeping sorts do not reach more than half that. PRUNING THE RASPBERRY. oad The Raspberry. At planting, the cane is cut down to six inches, and will throw up shoots which are to bear fruit the next year. ‘These are sometimes fastened to stakes driven in the ground, or a trellis is built on which the canes are laid. The latter is not upright, but generally at an angle of about sixty degrees. ‘This encourages the buds to burst every eye, and to throw the little shoots upon which the fruit is produced. Some tie one-half of the tip of one plant to that of another, and the remainder to that on the opposite side, which answers the same purpose. The summer pruning consists in cutting out the old canes after they have finished fruiting, and the superfluous and weak young shoots. This strengthens the buds upon the new canes. By a judicious winter pruning the season of bearing can be extended through six weeks. Dr. Warder, of Ohio, published an _ excellent article upon this subject in the report of the Agri- cultural Department. He thought it a great mis- take to leave the canes so long as they are generally seen. ‘The tendency of the sap is always upwards, and therefore the weak buds at the top are those which push, producing inferior fruit compared with that below, which would have been borne on those had they not been smothered. ‘The finest raspber- ries are always borne by the laterals which start from the strong buds at the base. ‘The black-cap varieties should be pruned to three feet at least, and 29 358 PRUNING THE BLACKBERRY. our common sorts to twenty or thirty inches, de- pending, of course, upon the strength of the shoot. As the buds at the top of the cane bear the earliest fruit, the season may be extended if some are left unpruned, others cut as directed for the main crop, and some as low as one foot, for the latest supply. During one season the frosts held | off, and quarts of berries of the \ Belle de Fontenay were gathered on 4 £ i the sixth of November, in the vicin- ~ reo ity of Boston. we ie} &S The Blackberry. This is such a Kh | delicious and beautiful fruit for the AY! ' dessert that it is surprising it has n i ' been permitted to be only a nui- ie { sance in most gardens. If they are fa pruned properly, they can be as \ : easily cultivated as any other fruit, aN Ys k and with little care yield wonderful s dG returns. When the plants have <(s-4) been set at regular distances, the 10% i suckers which are allowed to grow _ should be kept as near as possible to these places, and only a sufficient number’ grown to replace those which are to be cut out after producing a crop. If an unnecessary number are allowed to start, they draw away the sap, and prevent the production of PRUNING THE STRAWBERRY. 339 fruit. The berries are borne on the young spurs arising from the buds, and, by bending over the canes and tying them together, as seen in the figure, all the buds will be encouraged to throw these spurs. One of the most beautiful as well as successful methods of prun- ing the blackberry is to pinch out the terminal bud when the cane has grown about two feet and one half in height, when side branches will be thrown out, on which the | fruit will be borne. The Strawberry. In this country the cultivation of the strawberry is beginning to attract more atten- tion than formerly, and various | plans of training them have been proposed, to reduce the necessary amount of labor. The old style was to grow them in beds, and renew them once in a few years; but the expense of weeding them was so great that it made fearful inroads upon the profit. It was soon ascertained that it was scarcely profitable to allow them to bear more than one crop before re- newal, when grown in beds. The runners of the _ year previous are planted in the spring, cultivated 340 IRRIGATION OF STRAWBERRY PLANTS. during the first season with the horse-hoe, and ploughed in the next summer, after producing the crop and growing enough runners to reset the plat. By this method every alternate season is left blank, while the plants are becoming established. Some plans unite the advantages of constant renewal with a yearly crop. After the fruit has become mature, the plant commences to make runners ; on each of these, three or four plants may be formed. When the first has been produced upon the runners, if its roots are covered with a little loose earth, and all further extension of the runners prevented, the plant will very speedily become strong, and, if transplanted about the first of August, a crop may be obtained the first year, and one season’s unprofi- table cultivation saved. If they are planted in hills, the cultivation can be done e almost entirely with a horse, | and the plants can be renewed 7 = each year, as shown in the diagram, and the old plants destroyed. ¢ The strawberry plant is very fond of moisture, and irriga- a tion at the time of the growth of the fruit produces an astonishing increase in its size. Many methods have been attempted to secure this benefit with the least labor. Mr. Loudon gives an account of the practice of a gardener in the ROOT-PRUNING. 341 neighborhood of Chatham. The beds were upon level ground, each of them being about one yard in width. Between each of these beds was a trench nine inches wide. The beds were kept in place by three heights of brick without mortar, leaving the trench two bricks in width at the bottom. When the plants were in fruit, if the ground became dry, these trenches were filled with water from a pump near at hand. The result was an improve- ment in quantity and quality, and the extension of the season. Root-pruning. By cultivation the roots are en- couraged to extend, while the top is pruned and produces such a disturbance in the flow of sap, and the top not being able to dispose of the large amount of sap in circulation, that various diseases, such as canker, are induced. ‘The addition of fer- tility to the soil increases the difficulty, while transplanting, which is virtually root-pruning, re- stores the equilibrium. ‘Therefore, by this method of cutting the roots, undue luxuriance may be checked. It encourages the formation of fruit-spurs, which takes place in unpruned trees after the luxuriance of growth has expended itself, and the cool weather of the autumn commenced. foot-pruning hastens this maturity, and consequently develops these buds 29* 342 ROOT-PRUNING. more fully. For the same reason it prevents late growth, which so often leads to frozen-sap blight. Thus it may be said to render the tree more hardy, and it is probable that in the more northern parts of this country and the Canadas this would insure them many fruits which do not now succeed. The operation should be performed with some regard to the variety of the fruit, and the present vigor of the tree. If it is just furnishing itself with blossom-buds, one pruning may prove sufi- cient, as all that is required is to induce the habit of fruitfulness. A tree of great vigor would be injured if pruned so severely as the former, and must be operated upon gradually, or by cutting only a part of the circumference of the ball of roots annually. Root-pruning, as productive of fertility, was originally suggested by the fact that mutilation of plants is often followed by prematurity. ‘This can be observed upon those trees which have been girdled or severely injured in the stem, or whose roots have become bared. The practical application of this principle in gardening was made about the first of the present century, and fruit growers are largely indebted to Mr. Thos. Rivers, of Sawbridge- worth, England, for his demonstration of its advan- tages as applied to the different fruits. He thought it particularly adapted to those persons who had small tracts of land, and wished to realize the great- est returns ; although the practice was by no means ROOT-PRUNING. 343 inexpedient for large orchards. He thus describes the method of performing the operation : « A trench should be dug around the tree, about eighteen inches from its stem, every autumn, just after the fruit is gathered, if the soil be sufficiently moist; if not, it will be better to wait until the autumnal rains have fallen. ‘The roots should be carefully examined, and those which are inclined to perpendicular growth cut with the spade, which must be introduced quite under the tree on all sides,! so that no root can possibly escape amputa- tion, and all the horizontal roots, except those that are very small and fibrous, shortened with the knife to within a circle of eighteen inches from the stem, and all brought as near to the surface as possible, filling in the trench with compost for the roots to rest on. ‘This should be well-rotted dung, and the mould from an old hotbed, in equal parts, which will answer exceedingly well. It may be found that after a few years of root-pruning, the circumferential mass of fibres will have become too much matted, and that some of the roots are bare of fibres towards the stem of the tree; in such cases, thin out some of the roots, shortening them at nine inches or one foot from the trunk. ‘This will cause them to give out new fibres, so that the entire circle of three feet or more around the tree will be full of fibrous roots 1 This part of the work may be entirely avoided, if the bottom of the hole is floored with tile-brick or stones, when the tree is planted. 344 ROOT-PRUNING. near the surface, waiting with open mouths for the nourishment annually given to them by surface- dressings and liquid manure.” If a branch be lost from accident or disease, and it be necessary to produce another, the method adopted by M. Jamin may be use- (a) represents the position of a dormant bud, which will not burst naturally, because the force of the sap tends toward the highest portions of the tree. A cut is made through the bark, across the top and down the sides of the bud, which causes it to start and grow. CHAPTER, SUMMER CULTIVATION. REMOVAL OF MOSS AND DECAYED BARK — LOOSENING THE SOIL — MULCH- ING — THINNING THE FRUIT — RINGING — WATERING, TYING, SUPPORT- ING, AND GATHERING THE FRUIT — PRESERVATION. HE labors demanded of the fruit-grower during the summer are varied, and will be considered in the order in which they will necessarily require his attention. The removal of moss and decayed bark. 'The pres- ence of moss or lichens is not itself injurious to trees, except as providing a shelter for insects; but it is generally an index to a bad state of health in the tree. ‘They are among the agents which nature employs to restore vegetable substances to earth, after life has left them. They never attack any part of the tree which is still alive, but only those which are in a state of decay. A tree which is in full vigor, as it grows and its trunk increases in size, bursts its old covering, and it peels off. When it is persistent it shows that the health of the tree is bad, on account of the barrenness of the soil, or, more frequently, the want of drainage. The evils resulting from such a state, are that the 346 LOOSENING THE SOIL. tree is stifled or hidebound, and that this old bark affords shelter for myriads of insects, which ravage the crops the next summer. To restore the tree, the remedy must be applied to the primary cause, in the form of manure to increase the fertility of the land, or by draining to regulate its moisture. The tree should then be scraped so that the moss and old bark shall be entirely removed; but the instrument used for this purpose must not be too sharp, else it will mutilate the tree by exposing unduly the liber, or live bark. It is very well to wash the trunk with a very weak dilution of potash- water, to destroy the larvae which may be present. A great many orchards are treated so severely in removing the old bark as really to wound the tree, and the operation is generally rendered fruitless by the scrapings being left upon the ground, in which case the larvae can crawl upon and attack the trees almost as well as if they had never been touched. The bark which is scraped off should always be gathered up and burned, when the destruction of the insects will be certain. Loosening the soil. The constant pulverization of the surface-soil, particularly by the use of the hoe, greatly promotes its fertility. By this means it is kept porous, and in a condition to absorb ferti- lizing gases, as well as moisture, from the atmos- phere. It will readily be seen that deep ploughing or spading is injurious. The little fibres which SHALLOW CULTIVATION AFTER PLANTING. 347 produce and sustain fruitfulness are near the sur- face; they are almost invisible, and drink in the fer- tility of every shower, and that of the morning dew. The strong roots, which penetrate immediately to the subsoil, sustain the vigor of the tree, and it is the object of root-pruning, as has been seen, to prevent their formation, or to destroy them when in existence. Thus by this operation extreme vigor is checked, and maturity gained. ‘The same results are often obtained by encouraging the roots to come to the surface. This does not follow deep cultiva- tion, for by it the little root-fibres in the surface- soil are destroyed, or prevented from forming. It can, therefore, be understood why orchards deeply cultivated refuse to bear fruit, and still exhibit a luxuriant growth; they are receiving a constant pruning, which is discouraging fruitfulness, and pro- moting vigor. THE LIFE OF AN INSECT. 425 is more mortifying to a host, disgusting to his guest, or disheartening to the amateur, than to discover a writhing worm wounded by his teeth in a fruit which the sun has painted with the image of God’s glory, and to which the morning breezes have imparted a delightful fragrance, and from which he anticipated an almost ambrosial morsel? While some insects, destructive to our fruit, are real enemies, others are true friends and valuable allies, destroying the former. Insects cause a number of diseases, and we will consider briefly a few facts respecting them. The life of an insect is divided into three periods. The first state is that in which it is hatched, then called a larva, and is wingless; it may be a maggot destitute of legs and sight; a caterpillar or grub. The latter has six legs, sometimes with an additional pair of false legs attached to the posterior segment of the body. The caterpillar has six true legs, like the grub, and several pairs of false legs, amounting altogether to from ten to sixteen. From this state, in which it feeds enormously, and erows very fast, it passes to the second state. In this it is called a pupa, or chrysalid. The latter is distinguished by the gilt spots. In this state some insects eat, and are active; but most of them are dormant, and enclosed in a cocoon. In the third state they are generally provided with wings. The females deposit their eggs, and 36* 426 COLEOPTERA, ORTHOPTERA, NEUROPTERA. die. In the first of these states they do the most injury. The following description of the orders of insects was suggested by those of Burmeister, Harris, and Glover. 1. Coleoptera — Beetles. These undergo a perfect change of form, as described above. ‘They have a mouth, furnished with jaws formed for biting; two thick, wiry covers, meeting in a straight line on the. top of the back ; and two filmy wings underneath them, folded transversely. The larvae are grubs; the pupae with wings and legs distinct and uncon- fined. 2. Orthoptera — Cockroaches, crickets, grasshop- pers, straight-winged insects. These have only an imperfect change of form; and in their mature state are like grasshoppers. They have a mouth like the preceding, furnished with jaws for biting or masticating; two thick, opaque upper wings, over- lapping a little on the back; and two larger, thin wings, folded in plaits, like a fan. The larvae and pupae are active, but wingless. 3. Neuroptera — Net-veined insects. These have a perfect change of form: the mouth is furnished with jaws for biting. They have four wings, of LEPIDOPTERA, HEMIPTERA, DIPTERA. 427 similar texture, of which the hinder are the largest, with narrow, meshed netted veins. 4. Lepidoptera — Butterflies and moths. These undergo a perfect change of form; have a mouth with a spiral trunk, furnished with a piercer, or sucker, and not capable of biting; four wings, of similar texture, wholly or only partly covered with fine dust-like scales; the larvae are caterpillars, and have six true legs, and from four to ten fleshy pro- legs; pupae, with the cases of the wings and of the legs indistinct, and soldered to the breast. 5. Hemiptera — Bugs, locusts, plant-lice. These have an imperfect change of form. The mouth is armed with a beak, furnished with a piercer, or sucker, and not capable of biting. ‘They have four wings, generally standing up, when at rest, like the roof of a house, and frequently all of the same mem- braneous texture. The larvae.and pupae are nearly like the adult insect, but are wanting in wings. 6. Diptera — Mosquitos, gnats, and flies. These undergo a perfect change of form; the mouth has a proboscis for sucking, sometimes having small lancet-like appendages for piercing concealed inside the trunk, as in the horse-fly. They have two naked, transparent wings, and in place of the two hind wings a slender stalk-like appendage on each 428 DISEASES OF THE APPLE. side; this terminates with a button, or knob-like end. The larvae are maggots without feet, and with the breathing-holes generally in the hinder extremity of the body. ‘The pupae are mostly in- cased in the dried skins of the larvae; sometimes, however, they are naked, in which case the wings and the legs are visible, and are more or less free or unconfined. 7. Hymenoptera. ‘These insects have a_ perfect change of form. Their mouth is armed with dis- tinct mandibles, or jaws, and also has a ligula, tongue, or proboscis for suction. ‘They have four membraneous wings, divided into large cells. The larvae are mostly maggot-like, or slug-like; that of some species are caterpillar-like pupae, with legs and wings unconfined. § II. “DISEASES OF THE APPLE. I. Tuose arrectinc THE Lear. 1. The fall of the leaf— Phylloptosis. In most plants there. is a point of articulation between the leaf-stock and the wood, but not always. Nearly all the plants which come under our notice in this work possess such a junction. When the leaf is about to fall, a chemical change takes place in the chlorophyl, which gives the green color to plants, — a change by which they assume the hue so familiar to us as that of autumn. Thus the leaf dies, and is no longer of any value to ihe} tree. PREMATURE FALL OF THE LEAF. 429 Dr. Schacht describes this more in detail. He says, “ The cells at the place of separation are cork, and the scar is subsequently covered with it. The transmission of sap is consequently impeded, and at length entirely cut off, insomuch that the leaf hangs loose, and finally falls.” But, with much reason, Dr. Berkeley contends that this is not the cause of the phenomenon, but only an effect, by which these cells endeavor to cover the live wood of the tree in such a manner as to prevent the transmission of any morbid matter. This transmission he often observed to be the cause of canker. The-fall of the flower and the fruit he considered as belonging to the same class of phe- nomena. It may be said that, in the case of a fruit, death has not taken place ; but it will be seen, upon a moment’s reflection, that as far as its relation to the tree is concerned, the fruit has really ceased to live as soon as it stops drawing nutriment from the tree. “The parts have all arrived at maturity, and therefore neither require any more food from the mother plant, nor are they in a condition to make any further interchange,” (fermentation having probably commenced) “ and separation takes place. The fall of the leaf, considered as a disease, is when this phenomenon takes place at an improper time, and results either from some constitutional or accidental cause.” The Flemish Beauty and the Paradise d’Automne 430 THE PRESENCE OF FUNGI. pears may be cited as examples of this disease result- ing from the first of these causes. ‘These drop their foliage oftentimes before the fruit is sufficiently mature to pluck from the tree. This makes the fruit less in size and inferior in quality. Among the varieties of the currant, the Red Dutch is, especially in this country, liable to shed its foliage prematurely, in which case the fruit shrivels and dries up; or, if gathered, possesses a peculiar acidity, showing that the saccharine fer- mentation had scarcely commenced. While this is the character of the Red Dutch, some varieties, like La Versaillaise, retain their foliage. This in- creases the size of the fruit, and its adhesion to the bush. 2. The presence of fungi. Myr. Berkeley, in a re- view of the work of Mons. Muger on the causes which induce fungi, states them as follows: (1) Fungi always originate on plants which are young and full of sap; and hence it is in spring that they are found on the young and tender parts. (2) Young shoots of trees are more lable to be attacked. (3) Younger trees are more predisposed than those which are older. Many species occur in young plantations, which are rarely found in those of older growth. (4) Galls are frequently covered with fungi. CLADOSPORIUM DENDRITICUM. 451 (5) The lower branches are more affected than the upper, and the propagation of the parasite takes place from the base to the summit. (6) Land too highly manured induces rust. Among the occasional causes producing fungi are — | (1) An atmosphere habitually charged with mois- tare: (2) Absence of light. (3) Sudden changes in the atmosphere, as a tran- sition from heat to cold, or from a dry to a moist state. (4) Long-continued drought. (5) Crowded growth. (6) Plants with creeping stems. (7) Leaves soiled with earth, or other impurities. (8) Changes of climate, causing corresponding changes in the development of the plant. (9) Inundation. Of Fungi, these kinds deserve special notice — (1) Cladosporium dendriticum. This fungus at- tacks not only the leaves, but also the fruit of the apple and pear. It completely exhausts the foliage, spreading over it, and causing black spots which, in the fruit, often produce cracks. Those caused by fungus must be distinguished, however, from those cracks caused by a sudden and superabundant flow of sap. This fungus is very persistent, and seldom leaves a tree in which it has once obtained 432 CERATITES, RAESTELIA. a sure lodgement. Some vegetable physiologists have even thought it was transmitted to the next generation by the seed. Like the species Botrytis, it dces not work upon the surface, but beneath it; and the disease is on that account not so easily exterminated as those which result from fungi, and run upon the surface. The only alleviant for the disease is to gather all the leaves after they have fallen, and burn them. At the same time the whole tree should be washed with a mixture of sulphur and lme-water, as recom- mended for mildew on the vine (Oidium Tuckerii). Thus, whatever spores may have been deposited on the buds and wood will be destroyed. (2) Ceratites. 'This fungus attacks the apple, pear, and quince. It more often appears upon the pear, not only upon its leaf, but also on its fruit. This has a single lobe at the orifice of the peridium, from which the spores escape for reproduction ( Berkeley). (3) Raestelia. This fungus has a number of lobes, all connected together, so as to form a little cage, through the interstices of which the spores escape. When a pear tree is once affected by this pest, it seldom escapes its influence in future years ; on the contrary, the evil generally increases, spread- ing to every neighboring tree, and thus propagating itself indefinitely. The better plan is to pick the leaves which are infected, as soon as the orange-col- THE APPLE-TREE LOUSE. ; 433 ored, thickened spots appear, and before the spores are developed. ( Berkeley.) 3. Insects. (1) Apple-tree Louse — Aphis mali. This is a small, green insect, which crowds upon the tips of the young shoots, and of the leaves. It sucks the juice of the tree, and causes the leaf to curl under. This provides it with a shelter from the dew and rain. It is very prolific. In the autumn the male and female produce eggs, which, during the winter, are laid in the crevices of the bark. The females are hatched early in the spring, and arrive at maturity in a few days. Without any intercourse with those of the opposite sex in this generation, they give birth to living young, bringing forth about two daily for a period of two or three weeks. ‘The young soon become parents, and they are thus multiplied almost inconceivably. From twenty to forty generations are produced in a single season. Mr. Curtis states that, from a single egg, in seven generations, seven hundred and twenty-nine millions of lice will be bred, if unmolested ; and if they all lived the allotted time, by autumn every- thing upon the face of the earth would be covered with them. On this account it is a source of gratitude that Providence has given this insect so many enemies ; perhaps no other has an equal number. ‘These are wasps denominated Crabonidae, and a number of flies called golden-eyed and lace-winged. But one of oT 454 COMMON APPLE-TREE CATERPILLAR. its most active enemies is the common lady-bug. This bug grasps the lice, and sucks out all their juices, leaving nothing but the skin. But while they have so many enemies, they also have friends and protectors. These are large black or reddish ants, which run over their backs and tickle them, induc- ing them to exude a drop of sweet fluid, which the ant consumes. The lice do not seem to flourish as well where the ants are not their attendants. As these insects attack only the tips of the shoots, where the skin is young and tender, the best method of destroying them, if the tree is small, is to immerse the shoot in a pail of water in which a piece of whale-oil soap of the size of the fist has been dissolved (Ltch). (2) Common Apple-tree Caterpillar — Clisiocampa Americana. The territory which is the theatre of operations for this worm is extensive. Although it can subsist upon the leaf of almost any species of the order of Rosaceae, yet it always chooses first the wild cherry, then the apple. Dr. Fitch, of New York, attached nests of them to trees and bushes of various kinds, and found, while they generally existed, that they did by no means flourish, and did not become strong enough to spin cocoons. The. seasons which are the most propitious for fruit, are also for the development of these as well as of other insects. This is a sage provision; otherwise our whole crop might be destroyed in an unfavorable COMMON APPLE-TREE CATERPILLAR. 435 year, while in seasons of abundance we can afford to lose a portion. ‘The eggs are placed in a cluster, forming a ring about the twig of three-quarters of an inch in length. In one of these belts is at least three hundred eggs —the product of one female. They are deposited early in July, and remain until the latter part of the next April or first of May, when they begin to hatch. The young larvae at first feed upon the glutinous matter which sur- rounds and covers the eggs; but when they have gained sufficient strength, they begin to forage upon the leaves. Each one, as he travels, spins a thread, attaches it to the bark, which secures his foothold. When he arrives at a fork in the limbs, he com- mences the dwelling by spinning threads in every direction. ‘These caterpillars, having eaten suffi- cient, repose upon the outer surface of their netting. When others return, they spin another net over these, and walk over those which are asleep. Thus a nest consists of several of these nets, one over the other, with space enough between them to allow the passage of the insect. When they first come forth from the egg they are not more than one-tenth of an inch in length. But they throw off their skins five or six times, and at each change become larger. They seem to be destitute of sense to guide them toward their food. They will sometimes pass, and almost touch fresh leaves, when they are half starved, without noticing 436 THE OAK-TREE CATERPILLAR. them. Neither do they have any mode of commu- nicating information to their companions in regard to food. One hungry worm after another examines the end of every twig upon a limb unsuccessfully for food; and, returning, they meet others going out upon the same errand. They take daily three meals, — one in the morning, another in the after- noon, and a third at night. Each worm will con- sume about two leaves per diem ; and as each nest contains about three hundred individuals, they will destroy at least six hundred leaves daily. In the early part of June they separate, and select some retreat where they spin their cocoons. They repose about three weeks in the pupa state; and early in July they pair and deposit their eggs. At this time they are the dingy, dusty moths which flutter about the lights in the evenings. If these insects are un- molested, they will often entirely strip the tree of foliage. The best method of preventing their ravages is to take the nests from the trees with the hands, imme- diately after their appearance, and to stamp them so as to crush the young. If they are merely thrown upon the ground, they will soon crawl up again, and resume their attacks upon the same, or another tree (Etch). (3) The Oak-tree Caterpillar — Clisiocampa sylva- tica. This caterpillar attacks the apple and the oak. It not only eats the leaves of the former, but THE VAPORER MOTH. 437 enaws the stem of the fruit, making it fall to the eround. It is found generally in the more southern parts of our country. It makes its appearance a ttle later in the season than the common cater- pillar, and its nest is attached to the sides of the tree, instead of to the fork of the limbs. In other respects, it 1s very much like those in the preced- ing description. There are various insects which prey upon this caterpillar in the pupa state. Some of them spin small cocoons upon the larva, and consume the pupa. As in respect to the preceding, it is often necessary to destroy the nest several times, as a portion of the worms will be foraging, who will re- construct their abode on their return (Ftch). (4) The Vaporer Moth — Orgyia leucostigma. The caterpillar of this moth “is slender, with pale yellow . hairs and tufts, and black pencil-marks; its head, and two small protuberances on the hind part of the back, are bright coral red.” It is about one inch in length, has sixteen feet, and is very beauti- ful in its appearance. Among the fruits, it feeds upon the leaves of the apple and the plum during the month of July. It is not gregarious, but lives solitary, and eats only the soft parts of the leaf and the smaller ribs. Their cocoons which are to pro- duce females are spun, in the latter part of this month, to twigs and limbs, while those from which the male moths are to be hatched are often attached 37* 438 THE VAPORER MOTH. to fences. Two leaves are often drawn together, and tied by their threads, to form the cocoon of the former. The cocoons of the females are always placed where the eggs are to be deposited. ‘The implantation of this instinct is a wise provision, because the females are wingless. | Early in August the moth appears. Its color is dark brown, with very few spots or streaks. The flight of the male is peculiar, made up of short jerks. The body of the female is at first very thick and unwieldy, but, after the deposition of her egg, appears slender and flabby ; and she soon becomes so weak as to drop to the ground and perish. The number of her eggs is from one hundred to two hundred. ‘They are placed upon the exterior of the cocoon just vacated, where they are covered with a frothy matter, which glues them together, and pre- vents their destruction by birds. The caterpillar, however, is not without enemies. It is attacked by a very small, bee-like insect, that punctures its skin and inserts an egg, soon hatch- ing a maggot, which feeds upon the fatty matter of the caterpillar, and finally kills it. The vaporer moth can easily be destroyed, be- cause the cocoon of the female, upon which the eggs have been placed, can be readily distinguished, when the leaves have fallen, by the prominence of the dry leaf forming a part of it. They should then be gathered and burned (Lich). THE PALMER WORM. 439 (5) The Palmer Worm — Chaetochilus pometellus : Harris. There seems to be seasons when this insect is very destructive. Generally they make their appearance only in small numbers; when in quantity, their numbers are prodigious, and they destroy all the foliage upon a tree in an almost in- credibly short space of time. They prove most injurious after a hot, dry season, when the orchards which they attack appear as though fire had gone over them. If an infested tree is shaken, hundreds of them let themselves down to the ground by a fine thread. Their attacks are not confined to the leaves, but also extend to the fruit. They are very variable in color; and this circumstance has given rise to their division into several species ; but spe- cific difference does not, probably, exist. Their bodies have thirteen segments, and sixteen feet. Their general color is greenish yellow; but a shade of pink, or a tendency to white, is often observed among them. ‘They have upon them several small black dots, each giving rise to a single hair. Where they exist in small number, they spin their cocoons upon leaves; but where they are numerous they so completely destroy the foliage that this becomes impossible, and they take refuge under dead leaves, or some other material upon the surface of the ground, or in any secure position. ‘Their cocoon is very superficial, when compared with that of some other insects, as they remain in it a very short time. 440 THE HAG MOTH. In ten or twelve days, or about the middle of July, the moth appears. This worm is attacked by a parasitic insect, which feeds upon it until it has attained its growth, and then perforates the skin of the palmer worm, and spins its own cocoon. Of course it kills the worm upon which it has preyed. The most effectual method for the destruction of the palmer worm is to syringe the tree, by means of a garden engine, with a strong solution of whale- oil soap. Heavy showers dislodge the worm; and it is therefore only in a season of long drought that they can increase so as to become injurious to any great extent (Lich). (6) The Hag Moth—Limacodes pethecium: Smith. In its very slow motion, this resembles a slug. It attacks the apple and the cherry. Its color is brown, and it is covered with short, downy hairs. Its body is nearly oblong square, and about one inch in length. The moth appears in June, and the larvae consume the leaves until the middle of September (Harris). (7) The Unicorn Moth— Notodonta unicornis. ‘This attacks both the apple and the plum. It is an inch or more in length, and is generally solitary in its habits. ‘“ The top of the fourth ring of this cater- pillar rises in the form of a long horn, a little slop- ing forward.” The tail and hindermost legs are always. raised, except in walking. Its head is large, and brown in color; the sides of the next two rings THE UNICORN MOTH. A4l green ; and the rest of the body brown, variegated with white. It has two broods during the season ; but, as they are generally small in number, they seldom do sufficient injury to produce a noticeable effect (Harris). (8) The Canker Worm — Phalaena vernata: Peck. In the male moth of this species the atennae have a narrow, almost downy, edging on each side, scarcely perceptible to the naked eye. The wings are large and thin. It is ash-colored, variously marked with white. The female is wingless; the atennae short, slender, and naked. These insects rise from the ground, where they have undergone their transformation, in the autumn and winter in small numbers; but the larger part of them do not come forth until about the middle of March. The females advance toward the nearest tree, and climb slowly up the trunk. The winged males flutter about, and accompany them. ‘The female deposits upon the limbs of the tree from sixty to one hun- dred eggs, glues them together, and dies. These eggs hatch early in the succeeding May. The larvae attack generally only the foliage of the apple and the elm, but occasionally the cherry and the plum. ‘These worms vary exceedingly in color, — from green to dusty brown, and blackish. At full size they are about an inch in length. A month after their appearance, they stop feed- ing, and leave the trees, creeping down the trunk, 442 THE CANKER WORM. or suspending themselves by threads. They then burrow in the soil to the depth of a few inches, and become transformed. They are prevented from spreading over any new tract of country very rap- idly, by the wingless condition of the female. They are exceedingly voracious during the period of their — growth, often entirely depriving the tree of leaves. To prevent ravages of the larvae we should stop the female from ascending the tree. For this pur- pose various methods have been adopted. Strips of paper, covered with tar, have been used; but the necessity of a frequent application renders this only a partial preventive. Boxes or troughs are some- time fitted areund the tree, so that the female is obliged to make her way over them in ascending. These are filled with a noxious fluid, or some liquid which drowns the insects, and proves beneficial. The Messrs. Clapp, of Dorchester, Massachusetts, used this remedy when their orchard was troubled, and state that for a few evenings during the ascen- sion of the insect the boxes became so completely filled with moths that others travelled over the bodies of their dead and dying companions. The most simple and efficient remedy is to place a strip of zinc, four inches in width, around the tree, so that the upper edge shall grasp the tree tightly, and the lower stand out two inches from the trunk. Then all the little interstices between the upper edge and the tree should be stuffed to prevent their THE HANDMAID MOTH. 445 ascent. They cannot pass over the lower edge, and therefore slide off and fall to the ground, to repeat the attempt until they become. aware of their ina- bility to reach the limbs. This collar must be made of zinc, and not of tin, for the latter will rust, and thus afford the worms access to the top of the tree. Orchards thus treated have been entirely free from these pests, while those in the immediate vicinity | were entirely deprived of foliage. (9) The Handmaid Moth— Eumetopona mimstra : ‘Drury. This is one of the worst insects affecting the apple. It commences at the tip of the limb, and entirely strips the tree of foliage. Like the palmer worm, these seldom make their appearance in sufi- cient numbers to do any great harm. ‘The caterpil- lars are yellow or black, feed while huddled together on the under surface of the leaves, and gnaw at the margin. If they are alarmed, they throw their tails at right angles to their bodies, and their heads up over their backs, and remain in this posture until the danger is past. They are from six to eight weeks in attaining their full size, and appear as moths about the middle of June. They then deposit from seventy to one hundred eggs, which are glued together on the surface of the leaf. In the latter part of July, when the worm is hatched, it com- mences to consume the leaf. In September it enters the soil to the depth of two or three inches. No effectual method for their destruction is known 444 DISEASES AFFECTING THE FRUIT AND FLOWER. except that of plucking them off aa (Iitch). (10) Dotted Apple-leaf Worm — Brachytaenia mal- ana. ‘This insect is of a pale green color, is dotted with white, and has fine whitish lines running lon- gitudinally. They make their appearance in the latter part of May, and attack the under surface of the foliage of the apple, cherry, and peach; and after their growth they spin a very peculiar and in- genious cocoon. ‘They draw the edges of a leaf so as to perfectly enclose themselves, and thus provide a dwelling for the pupae. ‘They are transformed into moths in July. They deposit their eggs in the leaves, and produce another generation the same season. This new race, having entered their cocoons, fall with the leaves, and come out as moths the next spring. But some of them, encouraged by the heat of the autumn, come forth, and hide themselves under the old bark, or in some such safe position, where they remain frozen all winter, and come forth in early spring. This insect, ike many other spe- cies, seldom appears in sufficient numbers to do any very serious injury; but, when it does, the tree can be shaken, —a sheet having been spread under it, — and the worms gathered.and burnt (ich). Il. Diseases AFFECTING THE Fruit AND FLOWER. 1. Sterility. This is not always an injury to the cul- tivator of fruits, but is often a positive benefit. STERILITY. 445 It denotes, not the non-production of fruit, but of — seed, the entire or partial loss of which, though a disease strictly considered, is generally attended by the production of fruit, because the resources of the tree are not exhausted. The Vicar of Winkfield pear seldom produces perfect seed; and hence it is a very regular and abundant bearer. There are some varieties of grapes which do not produce seed, and this is regarded as a point of excellence. But, in a practical view of sterility, it will be well . to consider it only affecting the production of fruit. Though all the parts of the flower may be perfect, and proper fecundation. take place, and even an embryo be formed, yet the plant may be sterile as to seed from habitual abortion, which is especially liable to take place in those varieties in which the walls of the ovary are highly developed. Hence, in some of the finer varieties of pears, perfect seed is a comparatively rare product. As the properties which make the fruit valuable are altogether inde- pendent of the seed, it is sufficient for all ordinary purposes if impregnation has taken place to such an extent as to insure the swelling of the sarcocarp or intermediate flesh. Many cases of sterility result from the fact that fertilization takes place only suf- ficient to stimulate temporarily the contents of the embryo sac and the fleshy walls of the fruit, but not sufficient to ensure its growth to maturity. Hence, after a time, the embryo ceases to grow, and 38 446 STERILITY. the sarcocarp withers. This is especially the case in stone fruits, as is well known to every cultivator, — whose fruits so frequently drop just when they are undergoing the process of stoning. Meyer studied this subject as regards forced cherries. From a very early stage of growth he could predict, from a change in the external form, and sometimes from a peculiar intensity of color, what fruit would ultimately prove abortive. But the shrivelling of the embryo takes place previous to the peculiar elongation of the fruit (Berkeley). The prevalence of rainy or cloudy weather at the time of flowering may prevent the style, or female element, from receiving the pollen. The anthers require dry weather in which to burst open, or dehisce, and throw forth their pollen. If this weather does not occur at the proper time, the style may fade, and its sensibility to the process of fecun- dation cease. Or, if the pollen has been already deposited, a heavy rain may wash it away before it has commenced its work. Upon this subject Dr. Berkeley remarks, that the secretion of viscous fluid, which is exuded from the surface of the style; and which develops the tubes that insert themselves down the style to the ovule from the pollen grains, is often washed off in rainy weather, so that even if the pollen falls upon the style afterwards, it produces no result. Sudden heat succeeding a fog or cloudy weather, he thinks STERILITY. 447 one of the most powerful agents in drying up and destroying the delicate tissue of the blossoms; and sometimes this takes place in flowers which have been impregnated, as well as those which have not. Such cases of failure are repeatedly noticed in this country, as well as in England. ‘There is no doubt that sterility sometimes occurs from a superabun- dance of this viscous fluid. Fungi and insects often attack the organs of fruc- tification, and cause more or less injury, according to the stage of progress in which the blossom then is. Sterility is sometimes occasioned by injury of the embryo, before the time of blossom, by extreme changes in the temperature. ‘Those seasons which are usually called the most severe, are generally best suited to plants. A low degree of the thermometer is not necessarily injurious if it is regular, and not inter- mitted by warm seasons, which excite the bud and cause it to swell, and sometimes even to put forth blossom. If such seasons are succeeded by extreme cold, they destroy the embryo. Such extremes are not so liable to injure the bud in the early part of winter, because then it would not be natural for the bud to start; but towards spring, when the sap is just beginning to flow, such changes are more serious. Sensitiveness to extremes is almost always con- fined to foreign fruits, and is never noticed in native varieties unless such extremes are very severe. 448 STERILITY. The buds of apples are covered with thick scales, and these are lined with pubescence, which make them still less conductors of heat; and therefore these are not so easily affected by the warm days in severely cold seasons. But the peach and the cherry are natives of a warmer climate, where, as such, a protection is unnecessary. Hence nature did not give them these peculiar properties. As species, never lose their specific character, it is impossible to raise a peach which shall have scales thick enough, or be coated with sufficient hair, to defend them from these vicissitudes. After an extreme of cold has just passed, and it is again comparatively warm so that decay can go on, a cultivator can easily determine whether the vitality of the buds is destroyed by cutting one smoothly in halves, and seeing whether there are any dark spots in the centre, since these denote the death of the embryo. “One of the ordinary causes of sterility,” says Dr. Berkeley, “whether permanent or temporary, is the hypertrophy or absence of some particular part of the plant. The nutriment which should have been employed in the formation and perfection of the organs of fructification is thus diverted to some other purpose. These organs may be apparently — perfect, and yet no impregnation take place, even though the pollen grains may germinate. It is possible that, in such cases, there is some deficiency HYPERTROPHY. 449 of power in the ovules, or in the vegetable force, by which they are excited, and not in the pollen erains themselves ;— an inference supported by analogy in the animal kingdom.” In the fruit tree this hypertrophy is often seen in the unnatural growth of wood, induced by a highly nitrogenous soil. The force of this growth is often so great, that if any fruit-buds are formed, they are changed into wood-buds the next spring, and shoots start from them. This disease can be remedied by severe summer pinching, as described in the chapter upon pruning, and by root-pruning, which will effectually check undue luxuriance. This condition is often induced by too severe and injudicious spring pruning. As was noticed in another chapter, the limbs which proceed from the buds at the base of the shoots do not produce fruit as readily as those from the terminus, or even at midway ; and, therefore, by pruning back to these at the base, the fruit-grower is constantly producing either partial or total sterility. In some cases sterility is caused by the monacious character of the plant (or the possession of only one of the sexes, the other being absent or sessile), and consequently by a defective fecundation, or none at all. This is particularly the case with strawberries. Some of our most valuable varieties are utterly unable to produce a large crop without the presence of other varieties in the line, or near 38* 450 IMMATURITY OF THE FRUIT. them, which have a superabundance of pollen, and can part with it for their benefit. ‘The former are called pistillate, because the female element largely predominates ; while the latter are staminate, because the male element is the stronger. Sterility in a pistillate plant can easily be remedied by planting through the bed, or in an adjoining line, those which are staminate. Again: sterility often results from bad cultiva- tion, which allows the tree to produce too large a crop, and to exhaust itself in maturing its seed. The production of some varieties only once in two years is owing to the fact that the tree becomes so weak in maturing such an inordinate number of seeds, that no strength is left for the formation of fruit-buds in the autumn for the succeeding year. This can be prevented by judiciously thinning the fruit, which does not diminish the quantity; for, as before mentioned, what exhausts the tree is the seed; and therefore, by taking a part of it away, the fruit becomes larger, and the measure remains the same, with only a diminished number of fruits. 2. Immaturity of the fruit—Carpomosia: Re. This is a condition of the fruit in which the cells are woody, and the juice acid, as it is before the com- mencement of the saccharine fermentation. It is impossible to ripen fruit when infected by this disease, which results from one of three causes: First, from excessive dampness and coldness of soil EFFECT OF LIGHT. 451 during the season of growth. This may be reme- died by proper drainage; secondly, from gathering the fruit before saccharine fermentation has com- menced ; and, thirdly, from absorption of too much oxygen. This may generally be remedied by judi- cious pruning, which admits the hight. wild stock in which the scion or bud were inserted. When it is general, it may be produced by excessive manuring or by injudicious pruning. Profusion of sap seldom results from the former of these causes in the eastern part of this country, because the soil is of so poor a quality ; but it frequently occurs in the fertile soils of the West. As was remarked in the chapter upon pruning, a very severe cutting-back in the spring leaves the roots much stronger than the top. Therefore, as in this case, the roots are capable of supporting a much larger area of foliage than will remain to be supplied with sap after such a severe pruning. In the endeavor to restore the equilibrium, it will push all the remaining buds with great vigor; and even the fruit-buds may be transformed, and throw shoots. Continuance of severe pruning of such trees will cause the disease to become more and more settled. The remedy is vigorous summer pinching, and root- pruning. ‘These are described in the chapter vpen “ Pruning and Training.” 464 STARVATION. 2. Stagnation of the sap, resulting from hunger — Stagnans effames. This is not the decrepitude occa- sioned by old age, but that which occurs when the tree is young, and should be in full vigor. It may re- sult from the barrenness of the soil in which the tree stands, the presence of stagnant water, or from a sub- stratum of poor soil near the surface, through which the roots cannot penetrate. From whichever of these it immediately results, the primary cause is insuffi- cient or improper food. When a tree has become pos- sessed with this disease, it ceases to grow; the foliage is diminutive, and of a yellowish color. The bark adheres very closely to the tree, which, if it produces fruit, is of a most insignificant character. After this disease has become settled, it is incurable ; but in its earlier stages it is very susceptible to proper treat- ment. When simple barrenness of the soil is the cause, abundance of good, rich manure should be applied. Stagnant water can be removed by draining, and an impervious stratum broken up by proper subsoiling. 3. Stagnation of the sap from transplantation — Stagnans elethargia. ‘This disease is principally con- fined to trees which have been set late in the spring. If the season of planting is followed by drought, the tree does not burst its buds, although it is alive, be- cause the production of rootlets is prevented by the dryness of the soil. It can be prevented, and is sometimes remedied, by mulching the ground about the tree, and by moistening the stem. STAGNATION FROM TRANSPLANTATION. 465. _ Mr. Berkeley, in a paper published in the Gar- deners’ Chronicle, says: “ Where moisture has been long withheld from a plant, the vitality descends so low that it is unable to endure a sudden or extreme change. Under such circumstances, if water is too rapidly admitted, it stagnates, and therefore reduces the quality of those supplies on which the develop-_ -ment of buds or adventitious roots depend. This _ may cause decomposition. Or it may carry noxious matter into the circulation” (if the water was ap- plied at the roots) “in such abundance as to act as a putrefactive ferment upon tissues already in a weak and languid condition. If the foliage flags, the power of evaporation will also be diminished. Mr. Knight found that shading and moistening the bark of trees long removed from the soil was better than supplying water directly to the roots. The young and tender bark partially performs the functions of ' the leayes, and in some succulent plants supersedes them. By judicious moistening, the vitality of the cellular tissue is gradually restored to its former strength, and the consequent formation of new roots at length enables the plant to sustain itself under ordinary cultivation.” 4. Canker of the Apple Tree — Carcinodes mali. This disease is not confined to the apple, but is here more frequently seen. It attacks the pear, as well as almost all the cultivated fruits, and results, when not constitutional, from one of three causes. 466 CANKER. ‘es (1) Excessive rain succeeding a long period of dry weather which had hardened the sap-vessels. (2) Severe pruning while the roots extended themselves, under high cultivation, and disturbed the equilibrium. | | (3) A sudden change of temperature. ) This malady is most likely to appear first where the tree has been bruised, or cut with the knife. When it results from excess of moisture in the soil, thorough draining is a most effectual preventive ; when from improper pruning, cutting the roots will restore the equilibrium ; but when from vicissitudes of temperature, it is entirely uncontrollable. This malady is not as common in the United States as in. Great Britain, but nevertheless occasionally appears. — Mr. Berkeley says: “I have before me some branches of the Golden Pippin apple, which, in the living portion, is still strong enough to bear very fine fruit, though the tree is evidently fast approach- ing the end of its existence. ‘The fruit appears‘on two kinds of branches, equally fertile ; the one, tall spring twigs, grown with great rapidity; the other stunted, more or less divaricate branchlets, whose ; growth has been extremely slow. Both are equally affected with canker, though not visibly, in the same ~ way; that upon the vigorous branches apparently growing downward and casting their thin bark, while the other perishes first at the base, and de- prives the upper parts of nutriment. On closer CANKER. A467 ‘ inspection, however, the difference is only apparent ; for even the smooth twigs have decayed spots, involving the superior organs. _ “Tf the cankered branch be examined as soon as the mischief is visible, a vertical section through the pith generally reveals the point at which decay has commenced ; some bud, frequently a fruit-bud. The flowers, in the first instance, may not have set, . on account of some one of the causes which usually produce sterility. The foot-stalks may have sep- arated from their point of attachment, leaving the bud in a state unfit for further vegetation. The young fruit may still remain withering on its matrix, which has not vitality enough to throw it off. Either the matrix itself or the dry fruit decomposes as the season advances. The morbid matter is carried down to the tissues surrounding the pith. If the branch has strength enough to resist the infecting matter, the wound is soon covered over with fresh layers of wood, and no permanent injury results. On the contrary, if the constitution be weak, and the vitality low, the woody tissue perishes, and soon involves the bark which covers it, so that both are incapable of transmitting the nutritive fluids, and it perishes as if by a flash of lightning. “Where there is great weakness of constitution, it is obviously very difficult to contend against the disease. Something may be done by very careful inspection of the trees, and by the removal of every unhealthy spur” (Berkeley). 468 . DECAY. 5. Decay..There is a time when all vegetables must decay ; but this is often very much hastened by constitutional or accidental disease. The tree in a healthy state grows in circumference, and throws off the old bark, replacing it by a layer of new beneath it: a similar process goes on in the wood. ‘This is annually increased in thickness by layers upon its outside. The sap ascends from the roots to the foliage through the wood of the last two or three years, the latest being the most active; and the sap, as it returns elaborated by the leaves, forms these new layers of wood and bark. In process of time the ducts of the new wood receive such a coating of woody fibre on their interior surface as to fill up the orifice through which the sap passed, and thus become useless. This old wood is now as dead as the old bark ; but, not being exposed to the air, it remains sound:as_ long as it is not so exposed, and is useful, mechani- cally, in strengthening the structure of the tree. But if an accident breaks this outer covering of new wood, the air will be admitted, and the limb decay, spreading the disease to the very heart of the tree. Although this does not essentially weaken the nu- tritive power, yet the tree will not have proper mechanical support. The proper remedy for a tree thus diseased is to cut out carefully all the decayed parts, and fill the cavity with a cement made of sand or gravel, lime, FREEZING. 469 and coarse stones or brickbats. » This furnishes me- chanical support, and the tree may flourish as well as before. ‘ 6. Freezing —Congelatio. Plants vary in their natural capability to endure frost. Late in the autumn, and early in winter, the tree is not easily stimulated ; and a severe frost, even after a warm | season, does not necessarily injure the tree. But late in the winter, and early in the spring, when the energies of the tree are active, a frost is very inju- rious; and if the buds are swollen, or the tree in leaf, it is disastrous, possibly fatal ; because the tree is then full of fluids, expanding as they freeze, and the'thin walls of the cells are thereby broken and destroyed. When these thaw, the sap runs out among the intercellular spaces, and deranges the whole circulation. From the decomposition of the stagnant sap it spreads decay through the whole plant. Duhamel and Buffon maintain that frost-splits occur more frequently —“ Aux expositions du Nord et du conchaut” —on exposures to the north than on other aspects, because they were colder. On the contrary, Ehrhart says: “Those trees or shrubs planted on the southern side of the heights suffered more than those on the north side.” Dr. Caspary believed that these frost-clefts did not depend upon cold winds coming in any one direction, but upon injuries received, either from the decay of 40 470. FROST-CLEFTS. limbs, accidents, or the work of man. These inju- ries cause a mechanical weakness in that part. He had at first supposed that a thaw caused the clefts by the contraction of the outer layers, which were . then too small to contain the inner, and therefore burst. But, upon observation, he found that they occurred in the severest cold, and closed upon the © approach of a thaw. That these clefts were occasioned iy freezing and thawing, was the theory of Gaudichaud. - He exam- ines the conjecture of Goppert, that those that occur in the axils of the branches are to be attributed to the influence of wind. But he found that clefts seldom, if ever, occur here; but are beneath the. branch, in the toughest and strongest place: ‘and : that the wind, at the time of the clefts wae he observed, was very gentle. | They may have occurred from the outer layers be- ing reduced in volume by evaporation, Thus they were unable to endure the expansion of the inner layers not affected by this evaporation. ‘This theory — exploded on discovering that the moisture of the atmosphere, when the cleft took place, was greater than for some time preceding. ‘The author states that De Vriese, in his “Principles of Vegetable Physiology,” expresses the opinion that the. sap rises in the winter, and that the cold splits the stem, . and allows the juice to run out. . But, as the-tree is frozen to its centre, there can be no ascension of the FROST-CLEFTS. 471 sap; and there being no foliage, and in consequence no evaporation, this theory cannot be sustained. Besides, no sap runs from the clefts. The most popular theory attributes this phenomenon to ex- pansion in the act of freezing; but, according to Brunner, ice reaches its greatest bulk at the moment of congelation. At thirty-two degrees Fahrenheit it acquires about. one-eleventh of its bulk; therefore, — if a tree becomes cleft at all from this cause, it must be at this moment; for,as the cold increases, Brun- ner found its volume to diminish. He observed that the linear contraction of ice is one twenty-six thou- sand seven hundredths for every degree Centigrade. But the clefts did not appear until the cold was below twenty-three degrees Fahrenheit ; so that the freezing of the sap could not have been the cause. Duhamel, Buffon, and Treviranus entertained the opinion that the stems are burst by the “ volume acquired, on congelation, by a mass of moist, decayed wood, or an accumulation of sap in the interior of _ the tree.” Although Dr. Caspary allows that such may sometimes cause a cleft, yet he had never seen an example of it. He had never found ice in. the splits, and the decayed wood seemed to be dry. He finds the same difficulties to this theory as to the last: if they cleave for this reason, it should be _ at the moment of congelation. He thus sums up his observations: “ The bursting takes place at night by severe frost, not less than Cl ae FROST-CLEFTS. fifteen degrees Reaumer (one and one-half degrees Fahrenheit). _Remeaux has shown that the temper- - ature of the concentric layers of wood by night in- creases from outside to inside. A very severe, sudden frost, that cools down the outer layers, must occasion - an important difference in temperature between these and the inner, and at the same time a consid- erable difference in relative bulk. The inner layers, whether frozen or not, must considerably exceed the outer, and thus increase the strain upon them,” and eventually causes the cleft. Sir James Ross, in the history of his antarctic voyage (Vol. I. p. 223), says: “ We have often, in arctic regions, witnessed the astonishing effect of a sudden change of temperature during the winter season, causing great fissures in the ice of many miles in extent. A fall of thirty or forty degrees in the thermometer immediately occasions large cracks in every direction, attended with loud ex- plosions. Some of them open several inches by the contraction of the upper surface in contact with the extreme cold of the atmosphere.” Dr. Kane’s observations are similar, in his explorations of the arctic regions. 7. Wind Shakes ——- Anemosis :. Berkeley. Aside . from the injury done by winds in breaking down the limbs of trees, is that to the young and soft shoots. By whipping these one against another, DROPSY. 473 the lesion, or breakage, of the young cells results. This causes the death of a part or the whole of a shoot. Although this may not injure the tree per- manently, yet it gives it a very severe check. It may be prevented by proper shelter. 8. Dropsy. This is a disease which may not closely resemble that to which this name is applied — in animal pathology, yet it is the best term that can be used to express the idea. During a long season of rainy weather the plant becomes gorged with moisture; the circulation is slow, and the evaporation small. Growths made at such a season are watery and tender, and the fruit is almost without flavor. If this condition lasts for any length of time, the fruit never ripens, and may decay upon the tree; the foliage of the young shoots becomes white, or a sickly yellow, on account ‘of a deficiency of light; and both the fruit and foliage drop off prematurely. This disease scarcely ever exists where the drainage of the soil has been thorough (Berkeley). 9. Sun-stroke — Desiccatio. ‘This embraces the drying up of the fluids in either the roots or the foliage. ‘The former may be occasioned by a drought, particularly in undrained land, which bakes in the sun; or the latter may follow as a result of the former, be occasioned by the work of insects, or 40* ATA - SUN-STROKES. some atmospheric agency. It is very evident that the destruction of the rootlets cuts off the supply of sap, which is most disastrous. While the death ; of the tree may not always result, great weakness _ always follows. This disease is particularly liable | to attack newly-planted trees, especially those set in the spring. When this is the case, and the drought continues, the tissue of the whole tree dries up. ‘The best preventive is a well drained and thoroughly pulverized soil, where it has never made its appearance. 10. Wounds — Vulnera. These are more or less injurious, according to their nature. If a large limb has been cut or broken down, the inner wood, which has lost its vitality, commences immediately to decay; and, unless it is prevented, it extends through the old wood of the tree. ‘To prevent this loss of mechanical strength, it is necessary to cover all wounds which penetrate deeper than the vital wood with grafting-wax, paint, or some other ma- terial, protecting the wound from immediate contact with the air. If the tree is healthy, the new or vital parts soon extend over it. | Cattle should not be allowed within the precincts of a young orchard, since they are likely to rub against and break the limbs. Mice or rabbits often totally destroy trees by gnawing off the bark around their base during the winter. Thus, when the sap WOUNDS. 475 starts in the spring, and has ascended to the foliage through the young wood, it is arrested in its back- ward passage by this girdling of the bark of the tree. If the least channel exists upon any side, the tree will often recover; but if the girdling is entire, certain death results. Field-mice are encouraged by the presence of turf, or any rubbish in the vicinity of the orchard. After deep snows, when - ; other supplies are cut off, they are especially active ; when found, they should be killed if possible, and the snow about the base of the tree trodden hard, to prevent their burrowing. 11. The presence of Lichens. These give to an orchard a very neglected appearance. Although they are not directly injurious, yet they are so indirectly, by affording harbor for insects. They are also often an index of a poor state of health in the tree. They grow upon the dead bark, which has not. been cast off because the vital functions are not sufficiently active, and the tree did not grow fast enough to burst this outer coating. In old trees it may be a proof of decrepitude; in which case the vigor of the tree can hardly be permanently restored. But, with young trees, it results from some unfavorable condition; generally the want of thorough drainage and liberal manuring. 12. The circulation having been vitiated or poisoned . 476 - DISEASES WHICH AFFECT THE PEAR. — Veneficium. Plants, in common with animals, are sensitive to the influence of poisons. These may enter the plant through the root by solution, as the power of selection in the root is, to a degree, limited, or through the stomates of the leaf, as a gas. Many substances, poisonous or not, affect plants and animals in a similar manner. A twig of the sensitive plant was placed in a glass tube which contained sulphurous ether; it soon unfolded, and could be handled without recoiling in the least ; but, through the influence of the external air, it grad- ually resumed its former character. The specific characters of poison may be as different as the number of substances which are poisonous, and the species of plants which they affect. ‘The vicinity of gas-works, and that of some chemical works, are generally considered as unhealthy for plants; yet it would be impossible, except in a monograph, to describe, even if it were known, all the different effects produced, and state remedies for them. § III. — DISEASES OF THE PEAR. J. DisEAsES WHICH AFFECT THE Foutace. 1. Amer- ican Pear Blight — Effusio subcutanea. There have been a variety of conjectures relative to the origin of this disease. In this country it is the worst malady with which the cultivator of the pear has to contend. Sometimes, entering a nursery, it will > AMERICAN PEAR BLIGHT. A477 entirely destroy blocks containing thousands of trees, or leave them to struggle for years against the poison thus introduced. Some varieties are peculiarly susceptible to it, as the Belle Lucrative (I’ondante d’Automne), and particularly the Glout Morceau. ‘The latter sort shoots a great many soft twigs, and grows late, unless prevented by summer pinching. Blight commonly makes its appearance in districts, more or less extensive, not exposed to any severe sweeps of wind during the season of growth, A gentleman in Western Massachusetts once doubted the truth of this assertion, and said that his orchard had been severely attacked, and yet it was on the top of a hill. It was visited on a stormy day in autumn, when the wind was very severe; but, on entering, the air was calm and still; for, while the orchard lay open toward the south, at all other points it was skirted by forests. The strength of timber grown upon mountains, or in exposed positions, is known to be much greater than that grown in low valleys or on plains, where the air is more or less stagnant. Trees growing on the former sites always better endure the severities of winter than those on the latter. As before suggested, the gentle breezes of summer are of immense importance to the tree dur- ing the growing season, supplying the leaves with abundance of carbonic acid, so that the wood be- 478 AMERICAN PEAR BLIGHT. comes firm. After a young cell has. been formed, the interior of its membraneous walls is constantly — receiving an increased coating of woody fibre. This takes place most rapidly in the cool weather of the autumn, after the growth has stopped, and the whole force of the sluggish circulation seems to be directed to this deposition. Consequently, it is then that the young. wood requires the greatest abundance of carbon; and therefore an all-wise Providence sup- plies strong winds and gales to ripen their sub- stance. | , | ao If a frost sufficient to destroy vegetation occurs when the soft growth has just put forth, as in June, 1861, in some sections of the United States, all the young parts of the tree present the same stained appearance as after blight. This results from the cells’ lesion, which precipitates: the sap into the in- tercellular spaces. This causes the burst cells to decay, with all the other parts, which have been corroded by the fusion of sap. As vegetable, like animal tissue, is extremely sensitive to. decaying matter, not only these may be destroyed, but also the decay may spread through the young parts of the whole plant. The pear blight frequently occurs about the time of thunder showers. According to experiments made under the direction of the London Horticul- tural Society, it was found that just before, during, and immediately after a thunder-storm, ‘the growth ’ THE GOLDSMITH BEETLE. . 479 of vegetation was considerably retarded. The dif- ference in that of the hop was from sixty-four to eighty per cent., while in others it was not more than four. If this occurred when the wood was soft, it caused a sudden stagnation of the sap in the leaves, while the cells were distended with the cir- culation. ‘Their lesion, and the discharge of their contents, can easily be accounted for in a district where a plant had not been furnished with sufficient — carbon to properly strengthen its cell walls. Thus it seems to result from lesion produced by weakness of the cell wall from want of carbon, acted upon-so as to produce stagnation. The only remedy yet dis- covered is immediate amputation of the part. The _. prevalent idea that it is contagious, results from the rapidity with which this poisonous sap conveys the | elements of decay, when the circulation is restored, and it becomes mixed with healthy sap. 2. Insects. (1) The attack of the Goldsmith Beetle — Areoda lanigera. This appears about the middle of May. It flies during the night, and clings to the under surface of the leaf during the day. It consumes the young leaves of the pear and those of some forest trees. It is not usually sufficiently © prevalent to injure the tree. If it becomes unduly — ‘multiplied, spread a sheet under the tree, and strike the stem a smart, quick blow, when it falls, and can be picked up and burnt. It is “nine-tenths of an inch 480 THE PEAR-TREE SLUG. long, colored lemon above, glistening like burnished’ gold on the top of the head and thorax; the body beneath is copper colored, and thickly covered with — whitish wool ” (Harris). ) (2) The Red Mite — Acarus geniculatus: Linn. This little insect 1s gregarious, congregating in the spring at the base of the twigs, and is often found in great numbers. It attacks the foliage of many fruit trees, particularly the pear. It causes a pecu- liar and sickly hue on the leaf. It can be distin- | guished at a distance by the reddish tinge of its body. If unmolested, it destroys the tissue of the leaf, and thereby induces one of those diseases re- sulting from weakness. The insect becomes darker colored with age, attains about the size of a grain of very fine gunpowder, and during the winter lives under old bark or lichens. It may be destroyed by a profuse syringing of whale-oil soap-water, like that used for canker worms. (3) The Pear-tree Slug — Selandria Aethiops. This is the slimy larva of the saw-fly, and feeds upon the leaves of the pear. It is found upon the upper sur- face, solitary, or in groups of two or three. It is about five-eighths of an inch in length, is green in color, becoming darker with age. It eats nothing but the soft parts of the leaf, and commits its rava-. ges in June and July. If unmolested, it strips the tree of its foliage. It is particularly injurious in seasons of drought. In that of 1864, two generations THE PEAR-TREE LYDA. 481 were developed, the last of which did not disappear until October. Prof. Peck discovered a minute ichneumon fly, which deposits an egg in that of the saw-fly, and which, when hatched, feeds upon the contents, becomes transformed, and flies away upon its mission. This slug may be destroyed by dust- ing slacked lime upon the foliage when the dew is upon it. (4) The Pear-tree Lyda—Lyda fosciata. During _ the month of July the larva of this insect attacks the foliage of the pear. It is of a pale yellow color, with a black head, and is nearly one inch in length. It spins its silken web round the young leaves, and quickly consumes them. After its work is done, it lodges in the earth, and comes forth the following May asamoth. The male is black, with a yellow front of the head and abdomen. It is about a half- inch in length. The female is a little larger, but of the same color, except it has the yellow only between the atennae, at their base, on the mandibles, the legs, and the latter half of the abdomen. The larvae can be destroyed by dusting the foliage with slacked lime ( Westwood). (5) Large Pear-tree Astyages — Astyages Hemero- biella, ‘* My attention was directed, at the end of May, 1850, to the state of several pear trees trained against a wall in the gardens of the Horticultural Society at Chiswick. ‘These were infected by myr- iads of small caterpillars in a blackish, cylindrical, 41 « 482 HISPA QUADRATA. movable case. The leaves exhibited large brown patches where they had been attacked. ‘The case of this caterpillar is about half an inch long, enclosing the body of the insect, and both ends are open. Through the lower the animal can protrude its head and fore segments, and from the upper it discharges its excrement. On alarm it withdraws to its case. This stands erect at right angles to the leaf with which its mouth comes in contact. Its general position in walking is oblique. When it is fixed upon a spot to feed, it carefully forms a circular orifice in the cuticle of the leaf. It then attaches the mouth of the case to the edges of the orifice, and feeds upon the cellular matter. It soon introduces its head and the fore segments of its body to the cavity be- tween the two surfaces of the leaf, and then adopts the habits of the ordinary leaf-mining caterpillars. When it has consumed this patch, it withdraws to its case, and fixes upon another spot.” ‘This in- sect is generally found not in sufficient numbers to do particular injury; but, when it abounds, the only method of destroying it is to pick it by hand ( West- wood). | (6) Hispa quadrata: Faby. HH. Marginata : Say. H. rosea: Weber. This little insect, whose grub is about one-fifth of an inch in length, deposits its eges in numbers of from one to four on the surface of the leaf. ‘The larva bores through the epider- mis, and feeds upon the soft pulpy matter of the DISCOLORATION OF THE FOLIAGE. 483 interior. Its presence may be detected by a brown or black spot upon the leaf; and wherever it is noticed, the leaf should be plucked off and burnt. 3. Funer. (1) Ascomyces bullatus. This is a veg- etable parasite attacking the leaves of the pear, and causing shallow, brilliant spots. Another, much like it, affects the leaves of the peach, and resem- bles large blisters, which distort the foliage. It is induced by cold weather in spring, and by want -of drainage. When the disease commences, the folage should be dusted on its under surface with dry flour of sulphur, or syringed with water mixed with sulphur and lime, as for the vine mildew (Berkeley). (2) Ceratites. Page 432. (3) Cladosporium dendriticum. Page 481. 4. Discoloration of the foliage— Chlorosis. In the cells of growing vegetation are nitrogenous globules, containing a substance called chlorophyll. This takes various colors, but in leaves and new wood is generally green. ‘The deeper colored the foliage, the richer it is in this substance. This shows that the globules.are larger, and therefore that the cells containing it are more fully developed, active, and vigorous. Some varieties of fruit are constitution- — ally remarkable for deep-colored foliage ; and such are vigorous and healthy under almost any circum- stances. 484 ROTTING AT THE CORE. _ Berkeley says: “A portion of the plant, greater or less, does not assume its natural green hue, but ac- quires a yellowish tint. This may spread to other tissues, or remain isolated.” “No chlorophyll is formed ; the walls of the cells become flaccid ; their contents undergo chemical changes, and the whole either dries up, leaving additional work to be done by those tissues which remain healthy, or the walls give way, decomposition takes place, the putrefying mass spreads its contagion in every direction, and involves the neighboring structures. When the - tissues dry up, the process may be slower, but the result is not less sure. Every part of the plant is liable to be affected ; and even the tissue of the seed may be unhealthy, and transmit the disease through succeeding generations. ‘Thus, what was at first accidental, may eventually become constitutional, or even hereditary.” | This disease results from weakness, produced by superabundant bearing, barren soil, or imperfect drainage. In the first case, rest and good care must be the remedy ; and in the latter two, these must be combined with fertility and thorough drainage. 5. Premature fall of the Leaf — Phylloptosis. Page 428. II. DiIsEASES AFFECTING THE FLOWER AND FRUIT. 1. Bletting, or Rotting at the Core— Hyposathria. INDURATION. 485 ‘In some cases, no sooner has the fruit arrived at that condition which renders it available for the uses of man, than a further change takes place. The cell walls and their contents pass into a state of incipient decomposition, acquiring the brown tint so frequent where decay takes place in vegetables. The peculiar aroma vanishes, and the whole be- comes a soft, vapid, tasteless mass, devoid of every useful quality. Some varieties of pears so rapidly pass into this condition that they are scarcely worth cultivation, though some of them are of first-rate quality when in perfection. The change generally takes place in a centrifugal direction. This distin- guishes its condition from many forms of putres- cence” ( Berkeley). This disease, if constitutional, condemns the variety. Yet very many of our best pears are subject to undergo this change so slowly as not to materially injure them for table use. 2. Indwration—Sclerogenia. ‘This disease is more common with the pear than with any other fruit. The vascular tissue becomes a tough, woody mass, which, of course, lessens the amount of sugar, and destroys the fruit for use. Although it is often accidental, depending upon soil or climate, yet some varieties are more lable to it than others, as the Easter Beurré upon cold soils; but in the rich, warm lands of the West, or California, it is 41* 486 WANT OF BLOOM. very juicy and excellent. The Glout Morceau is subject to induration in the youth of trees, but in their maturity and.age is free from it. 3. Sterility. Page 444. 4. Immaturity of the Fruit — Carpomosia: Ré. Page 450. D. Deficiency in the cutaneous secretion — Ephi- drosis. Fruits, when grown most perfectly, are coy- ered with a sort of waxen secretion. ‘This prevents the escape of their juices by decomposition or evap- oration. It forms a coating, and renders the fruit almost air-tight. When this is absent, they cannot be preserved for so long a time, and very soon wither. ‘The entire or partial absence of this may arise from some derangement of the secretion, oc- casioned by atmospheric causes, or by an uncongenial soil. It has often been remarked that this bloom is more abundant where the land has been drained. Some times its absence is accidental, resulting from handling the fruit. Therefore it should never be touched more than is necessary while in growth ; and in gathering and preserving, great care should be practised that it be retained. The secret of the superior preservation of fruits, when barrelled immediately after being plucked, is that they are not handled, and consequently this coating is un- disturbed. ROOT BLIGHT. 487 III. DisEAses arFEcTING THE Stem. 1. Root Blight. This especially affects young dwarf pear trees. Very soon after the trees begin to grow, the leaves and wood turn to a deep brown color, approaching bronze. It differs entirely in appearance from the common pear blight, because that is black, and at first extends only over a portion of the tree; while _ this is general, and takes place earlier in the season. On examination, the roots will be found dead, which, in the young dwarf pear, are very near the surface of the earth, and possess no strong taps to keep them in place; and therefore, in undrained land, when the ground freezes and thaws, the tissue of the root is destroyed by the constant strain. 2. Insects. (1) The Pear-blight Beetle — Scolytus Pyri: Peck. Tomicus Pyri: Harris. ‘“ This insect causes a blight.of the limbs, which, in its outward appearance, resembles the common pear blight. The limbs which it attacks, turn black, and die in early summer, while other parts of the tree remain healthy. The disease is caused by the larva of this insect, whose egg was laid in the axil of a bud, who ate his way inward, and followed the eye of the bud toward the pith. Around this it passes, and partially consumes it. ‘Thus the insect, after pen- etrating through the alburnum, forms a circular burrow or passage in the heart-wood, contiguous to the pith. By this means the central vessels are 488 THE PEAR-BARK LOUSE. divided, and the circulation cut off.’ Thus the whole part above becomes deprived of its necessary nourishment, and dies. The Hon. J. Lowell, of Massachusetts, who discovered this insect, recom- mended the following method for its destruction: As soon as the blight appears, the limb should be cut off below the point of his burrow, and the whole be burned before he has time to come forth as a beetle, and provide for the extension of his race. (Harris). | (2) The Pear-bark Louse — Secanium Pyri: Schrank. This is similar in its habits to the apple- bark louse; but it is considerably larger. The remains of the female, under which the eggs are placed, is a brown scale, about one-fifth of an inch in diameter. When this comes off, a white spot - of the same size remains, which is easily distin- guished. It is injurious to the tree, because it sucks the sap through the young bark. For methods of destroying them, see those used for that of the apple. (3) Cicada Septemdecim. The puncture of the wood by the locust. Page 462. 3. Fungus upon the Root. Pear trees sometimes do not thrive, notwithstanding they are surrounded by all those conditions necessary to insure health. This is often. occasioned by a fungus, which has attached itself to the root and wound around it; ' FUNGUS UPON THE ROOT. 489 and if the tree is taken up, its threads can be seen. It feeds upon the sap, and thus deprives the tree of its proper nourishment. It results from the pres- ence of decaying matter in the soil, or often from the remaining roots of trees of a former generation. IV. Diseases AFFECTING THE TREE GENERALLY. 1. Profusion of Sap. . Page 462. 2. Stagnation of Sap after transplanting — Stagnans elethargia. Page 464. 3. Vitiation of the Sap —Veneficium. Page 476. 4. Canker — Carcinodes. Page 465. 5. Decay — Caries. Page 468. 6. Freezing— Congelatio. Page 469. 7. Wind Shakes — Anemosis. Page 472. 8. Dropsy — Anasarca. Page 473. 9. Sun-stroke — Disiodeaie Page 473. 10. Wounds — Vulnera. Page 474. 11. Lichens. Page 475. 490 PREMATURE FALL OF THE FRUIT. § IV.— DISEASES OF THE PEACH. I. Diszases AFFECTING THE Lear. 1. Dotted Apple-leaf Worm— Brachytaenia malana. Page 444. 2. A Vegetable Parasite — Ascomyces. “Page 483. I]. Disrases AFFECTING THE Fruit. 1. Rose Bug — Macrodactylus subspinosus. Page 454. 2. Sterility. Page 444. 3. Premature fall of the Fruit. This results from the bursting of the stone in consequence of injury during the spring, by a late frost after impregnation. III. DisEases arrectinc THE Srem. 1. Insects. (1) Peach-tree Borer — Buprestis divaricata: Say. This derives its name from the fact that the wing- covers are spread apart a little at the tips. “ The beetles are copper colored, covered with punctures. They are from seven to nine-tenths of an inch in length.” The larvae bore the trunks of the peach and cherry. When they are found in the tree, a flexible wire should be run into the hole, SO as to stab the worm. (2) Snapping Beetle — Chyrsobothris ‘Gunde Page 460. GUMMING OF THE PEACH. AQ] 2. Gumming—Apostaxis. Plants contain in their economy a substance called gum. This is trans- formed as occasion requires. Its composition is, of carbon twelve parts, of hydrogen and oxygen eleven -each ; while that of starch is one part less of the latter two, which are the elements of water, so that the elimination of these two parts transforms it into starch. Sometimes the tree stores up gum for | future use. The cells become full, and often, by their lesion, cause the spaces between them to be filled. If one cell is broken, the gum will flow until there is no more room for it, the cell being constantly replenished. So far, its effects may not be injurious ; but if any break takes place in the outer bark, the gum exudes; and, as the air and moisture are admitted, the decay of a part, or even the whole of the tree, may be the result, either from simple decomposition or from corrosion. 3. Profusion of Sap. Page 462. 4. Vitiation of the Sap —Veneficium. Page 446. 5. Decay — Caries. Page 468. 6. Sun-stroke — Desiccatis. Page 473. 7. Wounds — Vulnera. Page 474. 492 THE CURCULIO. § V.— DISEASES OF THE PLUM. I. Diseases AFFECTING THE Lear. 1. Insects. (1) The Plum Louse — Aphis pruni. This affects the leaves of the plum, curling them as upon the apple and cherry, and the same remedy applies. See page 433. (2) The Vaporer Moth — Orgyia, lencostigma. Page 437. | (3) The Unicorn Moth — Notodonta wunicornis. Page 440. II. Diseases AFFECTING THE Frurr. 1. Insects. - (1) Curculio — Rhynchaenus nenuphar. This is a native of America, and has wonderfully increased within the last fifty years. It is a small beetle, of about one-quarter of an inch in length. Its color is a grayish-brown, varied with spots of white, — yellow, and black. It has a curved beak or bill, and appears in small numbers as early as the first of April, but not in quantity until the middle of May. Early in June, when the fruit is sufficiently large, it begins to deposit its eggs. It seems to prefer the nectarine and plum, but also attacks the apple, pear, peach, and cherry. The crescent-shaped mark is made by its jaws at the end of its beak. This is not so distinguishable in the apple, because it soon heals over, and only a little speck remains. Having THE CURCULIO. 493 made this aperture, it drops in one egg. From this is hatched a maggot, which feeds on the flesh around the core or stone, and appears during the latter part of July as a beetle, like its parent. Not only does it deposit its eggs in the fruits above named, but also in the soft substance of the plum-wart, or knot. It also pierces little holes in the bark with its beak, like the puncture of a pin, by which it | draws the sap. What becomes of the beetle be- tween this time and the spring has been a mystery. Dr. Harris says, through the spring, bectles come forth from larvae which were retarded in growth, so that they remain in the ground as pupae all winter. Dr. Fitch very properly remarks, that the earth is warmer during the month of August than it is in July, and an insect whose transformations under ground are completed in three weeks in July, would not remain in the earth during the whole month of August. . He says, these beetles, perfected in July, deposit eggs in the soft bark of the young wood, particularly in that of the butternut; that these eggs are hatched, and become maggots, which eat out a space so as to form a little cavity, where they remain during the winter, and come forth in the spring. He found that a fly, somewhat resem- bling the gall-fly, gives birth to a parasite which preys upon the curculio. It is furnished at the tip of the abdomen with a very sharp, bristle-like sting, with which it penetrates the skin of the larva of the 42 494 THE CURCULIO. curculio, and deposits there an egg, and soon hatches a worm. This fly is called Sigalphus curculionis. It is hoped that it will so increase as to prevent the ravages of the curculio. A great many preventives of the destruction caused by this insect have been proposed. The one most widely practised is that of spreading a sheet under the tree, and striking the stem smartly, when the beetle falls, as if dead. It should then be taken up and committed to the flames. If left to itself, it soon starts up and flies away. Dr. Fitch speaks highly of an application sug- gested by Mr. Cummings, of the “ New York Observer.” This consists of four ounces of sulphur, with a pound of whale-oil soap, added to four gallons of lime-water, the whole poured into an equal quantity of strong tobacco-water. But he thinks the effect will be equally efficient if sulphur and lime were omitted. ‘This is syringed over the leaves of the tree, and repeated as often as it is washed off by the rain. The process should begin at the time when the curculio first makes his appearance. (2) The Rose Bug — Macrodactylus sibljnsees Page 454. 2. The fall of the Fruit. Page 490. 3. Sterility. Page 444. THE PLUM WART. AQ5 II]. Disrases AFFECTING THE Stem. 1. The Plum Wart — Sphaeria morbosa. This is a fungus com- mon in the United States, where it attacks particu- larly, but not exclusively, the plum. It sometimes appears:on the cherry. It produces great, gouty swellings upon the branches, and the glands of the bark look as if they had received poison. This is its appearance in the autumn. In the spring the part is very much enlarged, the skin broken, and _the soft substance exposed, leaving the wound raw. It soon changes from its natural yellowish-green color to black ; and the fungus then becomes quite visible. ‘The curculio takes advantage of this soft place to deposit its eggs. It is doubtful whether there is any remedy for the disease; but it can be checked by vigorous amputation. By some this wart has been attributed to the sting of the curculio, because its larvae are so often present. But this is not always the case; and the disease is often very prevalent where the curculio is not very abundant, and where it could find many other more natural and desirable positions in which to deposit its eggs. : By others it has been attributed to rankness of growth, or the absorption of some poisonous ma- terial. Another writer thinks it is the result of the extremes of temperature which take place during the period of growth. He says that his opinion is corroborated by the fact, that years ago, before the 496 THE PLUM WART. forests were cleared away, and when the seasons were more equable, it was not troublesome; and now, in many new countries the plum can be raised with ease previous to the clearing which precedes a growing population. But he overlooks the fact that, if such be the cause, it should be more preva- lent in the interior districts, and less so on the coast, where the ocean tends to equalize the temperature. But this is not sustained by experience. 2. Gumming — Apostaxis. Page 491. TV. DisEASES AFFECTING THE TREE GENERALLY. 1. Profusion of Sap — Profusio simplex. Page 462. 2. Vitiation of the Sap — Veneficium. Page 476. 3. Lreezing — Congelatio. Page 469. 4. Dropsy — Anasarca. Page 473. 0. Wounds —Vulnera. Page 474. § VI.— DISEASES OF THE CHERRY. I. Diseases AFFECTING THE Lear. 1. Insects. (1) Cherry-tree Louse — Aphis cerasi: Fabr. This is wonderfully reproductive. It makes its appearance from the fifteenth to the twenty-fifth of June, when THE CHERRY LOUSE. 497 it feeds upon the young foliage. Its number is then almost incredible, — more than one thousand being accommodated on both surfaces of a leaf one inch inlength. The young sometimes lie two deep, only caring for room to run their beaks into the tissue of the leaf and feed upon the juices of the tree. The foliage is often black with them. It is necessary that the cultivator should use the prepa- ration of whale-oil soap, as recommended for the apple louse (Lich). | (2) The May Beetle — Phyllophaga quercina: Knock. ‘This insect is chestnut-brown in color; smooth, covered with little impressed dots; each wing-case having two or three slightly elevated longitudinal lines. The breast is clothed with yellowish down.” It is about an inch in length, and feeds upon the leaves. It can be shaken from the tree in the morning upon sheets, and burned ; or killed by immersion in hot water. The grub, while in the earth, lives upon young roots (Harris). (8) The Hag Moth—Limacodes pethecium. Page 440. (4) The Dotted Apple-leaf Worm — Brachytaenia malana. Page 444. II. DIsEASES AFFECTING THE Fruit. ‘1. The Rose Bug— Macrodactylus subspinosus. Page 454. III. Diseases AFFECTING THE Stem. 1. Wounds — Vulnera. Page 474. 42% 498 THE GOOSEBERRY CATERPILLAR. 2. Inszcrs. (1) The Borer — Buprestis divaricata. Page 490. (2) The Cylindrical Borer — Linodendron cylin- dricum. Page 464. 3. The Wart —Sphaeria morbosa. Page 495. 4. Gumming — Apostaxis. Page 491. LV. DIsEASES AFFECTING THE TREE GENERALLY. lI. Profusion of Sap — Profusio simplex. Page 462. 2. Decay— Caries. Page 468. 3. Freezing — Congelatio. Page 469. 4. Dropsy — Anasarca. Page 473. 5. Sun-stroke — Desiccatio. Page 473. § VII.— DISEASES OF THE GOOSEBERRY. 1. Iysecrs. (1) The Gooseberry Caterpillar. The moth has four transparent wings. The body and legs are yellow; the head, atennae, and feet black. The male is smaller, and is all black except the tip and sides, which are yellow. ‘These insects, as flies, emerge from the ground in the spring, and lay their eggs on the under surface of the leaves. ‘The larvae, when hatched, feed upon the leaf, piercing THE GOOSEBERRY CATERPILLAR. 499 it with holes, which soon enlarge until the leaf is destroyed. This not only ruins the crop of fruit of the present year, if the attack is made while it is growing, but it prevents the ripening of the wood, and thus destroys the prospect of a crop for the next year. Various methods have been resorted to for preventing their ravages; as catching the flies when they emerge from the ground in the spring. But this is impracticable. Others have picked them from the leaves, or removed the earth while the pupae were in the soil; or have covered it with some material, like fresh tan, which was obnoxious to them. The powder of white hellebore is understood to be a most effectual remedy if dusted upon the under part of the leaf when the caterpillar is at work. Its efficacy depends, in a great measure, upon the dryness of the powder. If it has absorbed moisture, it is sure to be inoperative. It should, therefore, be thoroughly dried before the fire pre- vious to use. (2) The Swallow-tailed Moth — Ourapteryx sam- bucaria: Linn. ‘This infests the leaves of the apricot, and the gooseberry among fruit-bearing plants. The caterpillar is brown in color, and is two and one-half inches in length. On the sixth and eighth segments of the body are two tubercles each. The terminus is divided into two points. Attached to the first three segments of the body are 500 THE GOOSEBERRY MIDGE. three pairs of jointed legs, and behind one pair of ventral, and one of pro-legs. It is of the genus Geometridae, rising upon its hind legs and throwing forward those at the front, and measuring a regular distance each time. ‘The tubercles are their distin- guishing peculiarities. ‘The moth is about two and one-half inches in the spread of its fore wings, and is of a pale yellow color, with light green lines. The posterior wings end in points, which have two brownish-red spots. (3) The Gooseberry Midge—Cecidomyia grossulariae. The fly of this insect deposits her eggs in the fruit when it is very small. The presence of the larvae can be detected afterwards by the prematurity of the berry. It turns red, is putrid, and, if examined, a number of small, yellow maggots will be found, which have been hatched from the eggs. ‘These cause the fruit to fall to the ground, when the insect becomes a fly, and produces still another generation the same season. The maggots of this second family seek shelter in the ground during the winter, and come forth as flies the next June. To prevent their attacks, all those fruits which show this prematurity should be plucked and burned before the maggots have time to leave. 2. The Gooseberry Mildew — Erysiphe mors wwval. This is the common brown mildew which attacks the smooth varieties of the gooseberry. It some- THE CURRANT-BUSH BORER. 501 times renders a whole crop utterly useless. It con- sists of tufts of brownish strings of spores, “in a sac which opens above.” It covers not only the fruit, but often the leaves and young wood. Dr. Berkeley represents it, in its first stages, as similar in many respects to the grape mildew. Sulphur, as _applied to the vine, will prove an effectual remedy, if used during the first part of its growth. § VIII. —DISEASES OF THE CURRANT 1. The fall of the Leaf — Phylloptosis. Page 428. 2. The Currant-bush Borer — Aegeria tipuliformis : Linn. “The moth is blue-black; the under side of the feelers, the collar, the edges of the shoulder- covers, and three very narrow rings on the abdomen, are golden yellow.” It deposits its eggs during the - latter part of June, at the axil of a leaf; and, when the larva is hatched, it bores to the pith, which, with the bordering cells, it consumes for a great distance. ‘The limb becomes very weak, the foliage sickly, and the fruit small. Whenever a branch exhibits these marks, and, upon examination, a borer is found to be at work, the diseased part should be cut off, with the borer, and the whole burned, to prevent their multiplication (Harris). 502 THE RASPBERRY GRUB. § IX.— DISEASES OF THE RASPBERRY. The Raspberry Grub — Tinea corticella: inn. This insect, in the larva state, attacks the cane. It commences in the bud that is to produce fruit, which, from its tenderness, is a very acceptable meal. It then consumes the major part of the in- side of the bearing-stalk, which wilts and dies. By pinching the wilted bud and stalk vigorously be- tween the fingers, the grub may be killed. It is about a quarter of an inch in length, of a scarlet color, and has a black head, with one longitudinal light line over the centre. The first segment has two double, black spots, with very few hairs; and is largest in the middle of its body, which is fur- nished with sixteen legs. The first three pairs are upon the first three segments. There are then four pairs of ventral legs, and one pair of anal pro-legs. By the first part of June the caterpillar will have accomplished all the injury he will do; then it becomes a chrysalid among the dead foliage, and appears in about a fortnight as a moth. The fore wings of the moth are brown, covered with livid yellow spots. The hind wings have no spots. ‘he head has a great many yellow hairs covering it. The life of the moth is only about a month or six weeks in length, during which time it deposits its eggs upon the young shoots. They soon THE GRAPE-VINE PLUME. 9038 hatch, when the larvae eat the leaves until they have acquired sufficient growth, when, with the approach of winter, they take up their abode upon the stem ( Westwood). § X.— DISEASES OF THE VINE. J. DisEASES AFFECTING THE Fotiace. 1. Insects. (1) The Grape-vine Plume— Pterophorus periscelidac- tylus. ‘The larvae are about one-half an inch in length, having sixteen feet, and fourteen segments to their bodies. They are pale green in color, “and have two rows of elevated white spots along the back, and one on each side, from all of which little white bris- tles stand out.” These insects become moths the latter end of June or first of July ; and very probably give birth to another generation the same season. They may be easily detected upon the vine when in the larva state, for they draw together two or three leaves by means of threads. When this is observed, the leaves should be cut off very carefully, so as not to disturb the worm, else he will escape; and the whole should be burned, or trampled under foot, so as to destroy the insect ([vtch). (2) Sawfly of the Vine —Selandria vitis. The color of this fly is generally black, except the under part of the thorax, which is red, and also the fore legs and under part of the other legs, which are pale yellow. The wings are of a smoky color, with 504 SAW-FLY OF THE VINE. brown veins. ‘The female is one-quarter of an inch in length ; the male, somewhat shorter. They rise at irregular intervals from the ground, and lay their eggs on the under part of the terminal leaves. In July these hatch. The larva commences at the edge of the leaf, and consumes all the soft parts, working in company with a dozen or twenty. It is a little more than an inch in length, and has twenty-two legs. The head and tail are black, the upper parts of the body light green, and the lower yellowish; becoming more yellow at every moulting. After attaining their size they excavate, and line with silk little cavi- ties in the earth. In about two weeks they come forth, and again lay eggs. The young from these remain in the ground as chrysalids all the winter. The larvae may be destroyed by immersion in a solution of whale-oil soap and water, or by dusting with air-slacked lime. ‘The solution of soap should be in the proportion of two pounds to fifteen gallons of water (Harris). (3) Anomala vitis: Fabry. This beetle penetrates the ground for a few inches, deposits its eggs, which amount to about a hundred. ‘These hatch, and the worms feed upon the tender roots of all sorts of plants. During May they make their appearance. The beetles are brown; “the atennae nine or ten jointed ; the knob is of three leaf-like pieces, which open and shut. The visor is short and wide; the THE SPOTTED VINE BEETLE. . 505 upper jaws are furnished at the base, on the inner side, with an oval space, crossed by ridges for grind- ing. The thorax is transversely square. At times they attack the vine very furiously, depriving it of foliage. The only remedy is to pluck them by hand” (Harris). (4) The Spotted Vine Beetle — Pelidnota punctata. The larva exists in decayed wood and roots, and the beetle attacks the leaves, sometimes in large quan- tity. ‘The wing-covers are dull brownish yellow, with three distinct black dots on each. The thorax is darker, with a black spot on each side. The body beneath, and the legs, are deep bronzed green.” They are about an inch in length, and can be readily detected and plucked off by hand (Harris). (5) The Vine Pyralis — Tortrix vitana. This is an insect which causes immense damage to the vine- yards of France, by consuming the young foliage. The moth is nearly an inch in the spread of its fore wings, which are green and glossy, with three transverse brown lines. The remainder is brown. The female deposits her eggs on the leaves during the month of July. When the larva comes forth it hangs from the leaf, and eats the young foliage dur- ing the summer. ‘The caterpillar is green, except the head and first segment of the body, which are brown. When the winter commences they hide themselves, by a silken cover, under the dead bark. 43 006 ; THE VINE PYRALIS. Several methods have been proposed to destroy them, among which was this: to collect the leaves upon which the eggs were deposited. But the method which is generally practised is that discovered by M. Raclet. Early in the spring, before the cater- pillars have come forth from the bark, the whole trunk of the vine is washed with hot water. This effectually destroys them, and is found to be far from injurious to the vine, provided it is done after severe frosty weather is past ( Westwood). (6) Procris Amerciana. When in the caterpillar state, these attack the leaves of the grape-vine, con- suming all except the framework. The eggs are laid in groups of about twenty, and the worms live together. They are yellow, with black tufts on each segment of the body. The eggs are laid upon the under surface of the leaves. The moth depos- its them during the first part of July (Harris). (7) Haltica chalybea —Illiger. ‘This is a beetle, attacking the leaves and buds. It is, as its name indicates, generally blue, but not always. It is about one-seventh of an inch long. Two broods make their appearance each year: one in May, and the other the last of July. The eggs are deposited upon the surface of the leaf, and the larva con- sumes the interior soft part. Whenever this min- ing of the foliage is observed, the leaf should be plucked and burned. When they abound, if the foliage is sprinkled with lime, or with soap-suds, THE LEAF-HOPPER OF THE VINE. 507 every day or two during the time that the eggs are deposited, the females will be prevented from laying (Harris). (8) The Leaf-hopper of the Vine — Tettigonia vitis: Harris. This little hopper is about one-tenth of an inch in length. “Its color is generally pale yellow. The back part of the thorax, the scutel, the base of the wing-covers, and a broad band across the middle, are scarlet. The tip of the wing-covers are blackish, and some little lines between the broad bands and the tips, red.” They live on the under surface of the leaves. In the larva state they feed upon the juices of the plant, drawn through its leaves. The effect upon the vine is that the sap- flow is reduced, the vine becomes weak, the foliage yellow, and production prevented. In August the insect arrives at maturity, but still sucks the sap, and on the approach of winter hides in any material which will give it shelter. After the deposition of its eggs in the spring, it dies. The only means by which it can be completely destroyed is by using a little tent, which is spread over the affected vine, and filled with tobacco- smoke. The tent should be tight, to prevent its escape (Itch). (9) Bombyx grata: Fabr. These attack and de- vour the foliage ; not only the leaves, but also the stalks. They are solitary in their habits. They disappear before the first of September. The cater- 508 THE PHILAMPELUS. pular is about an inch and a quarter in length, of a blue color, transversely banded with deep orange across the middle of each ring. The bands are dotted with black; the head and feet are orange. They appear the middle of July, and the moths which produce them the last of June (Harvis). (10) Philampelus. This caterpillar is fully three inches in length, and is a great consumer of the foliage. Its color is pale green or brown. It has a tail, curved like that of a dog, when it is young; but as it grows and changes its skin, this disappears. It enters the earth during August, and, after being transformed, comes forth as a moth early in the fol- lowing summer. It is of so large a size that it can readily be detected and destroyed (Harris). (11) Choerocampa vitis. This is a large, fleshy caterpillar, like the preceding, feeding upon the foliage. But the injury which it inflicts does not stop here; for it nips off the young bunches of fruit and throws them upon the ground. It is for- tunate that it is solitary, and that it does not in- crease to such an extent as to ruin the whole crop when half grown. It can be destroyed, like the preceding, only by hand-plucking (Harris). (12) Rynchitis vitis. This insect has been very destructive to the vine in Europe, and in some parts of the United States. It rolls up the leaves in form- ing a retreat for its larva; and by this means a whole vineyard is sometimes deprived ‘of efficient VINE MILDEW. 509 foliage. It also attacks fruit trees, but seems to prefer the vine. It can be destroyed by carefully gathering the leaves which are rolled, and burning them. ‘This will kill the larva, and prevent further multiplication. 2. Funer (1) Vine Mildew — Oidium Tuckeri : This is a fungus appearing upon the under surface of the foliage, resembles a white powder, and is very rapid in its propagation. It often spreads upon, and destroys, the fruit. If not arrested, it will ultimately ruin both the foliage and the young wood. As fungus generally attacks vegetation when it is inactive, we must look to some previous cause. Cer- tain writers have considered the oidium as epidemic; but it is probably endemic. It seems to depend upon a certain condition of the plant, and the fun- gus is really but the consequence. This is to be proved from the observations of so many cultivators of the grape, who describe it as attacking the vine in fine weather, after a cold or wet season. There seems to be no doubt that its appearance is due to a stagnation of the sap, resulting from a sudden transition from warmth to cold in the atmosphere. Among the instances of injury by it was one in which the vines were situated in a cold grapery, and a hail storm having broken some of the glass, the change in the temperature was imme- diately followed by mildew upon the vines. There 43* 010 VINE MILDEW. is seldom an occurrence of this disease when it can- not be traced, in like manner, to a sudden extreme. The summers of 1862 and 1863 were remarkable, in the eastern part of the country, for these changes; and consequently there was a great prevalence of mildew, while in 1864 the opposite was the case. The vine mildew which results from this oidium was so much feared in France, on its first appear- ance, that the Government offered a prize of ten thousand francs, in connection with the “ Society for the Encouragement of National Industry,’ for a remedy. ‘Three thousand francs were added for the best essay upon the disease ; and prizes of from five hundred to one thousand francs were given to eight gentlemen for their efforts in observing and explaining the nature of this fungus. It threatened at one time to cause as much suffering among the inhabitants of the vine districts of France and Madeira, by the ruin of the crop, as did the pota- to disease in Ireland. The remedy is to apply water containing sulphur and lime, slacked together. In large vineyards it is almost impossible to apply this wash, and therefore dry flour of sulphur is thrown on the under side of the leaf. This should be a very fine powder ; and the purchaser must be careful that the ground, coarser material be not substituted. It should be applied when the fungus first makes its appearance. The oidium of the vine creeps over the surface of VINE MILDEW. oll the leaf, like the fungus of the hop, and therefore 1s more accessible than many other species which insinuate themselves among the intercellular parts of the foliage, and can only be affected by remedies when they make their appEM EAS through the stomates. Mr. Forrester, the author of a work upon the vine disease, states that in Portugal the flour of sulphur does not check the fungus as well as fumes of the same, or as a solution of penta-sulphide of lime. Three thousand four hundred and forty-four tons of sulphur were used in the French vineyards for arresting the oidium during the summer of 1856. Mr. P. Lazaris, of Athens, Greece, claims to have discovered, in the year 1858,’ that “any substance which is dry and pulverized, and which does not injure the foliage, will cure the mildew.” This he states as the results of experiments, and attributes his success to the fact “ that, attaching itself easily, it dries the fungus, absorbs its juices. and thus cuts off its nourishment.” His experiments were as follows: “I powdered my vines with sulphur, except one corner which stood apart from the rest. This was divided into . two portions: one was treated with the sulphurous earth of Kalimaki; the other, simply with clay which had been separated from sand or gravel, very finely pulverized, and dried a few hours in the sun. 1 Transactions of the New York State Agricultural Society, 1859. ' 512 VINE MILDEW. At the same time, a few vines were left in thei natural state. The three portions treated with the different materials all showed the cure alike, while the vines not powdered at all were entirely destroyed by the disease.” As some persons thought the sulphur exerted an influence at a distance, he de- termined to have another trial. He powdered the vines with clay before flowering, and twice at a later date. At one stage of his experiments there were some signs of the disease; but by repeating the application it was entirely arrested. From these experiments he drew the following conclusions: earth should be free from all sand and gravel, dried afew hours, pulverized, and then sifted or bolted like sulphur.. Clay is easily prepared, and adheres well to the vines. The application is best after sunrise, while the vines are moist with dew. We have repeated the experiments of the above- named gentleman, but with success not equal to his. This, perhaps, resulted from inaccurate prepa- ration of the clay ; and it therefore deserves another trial. (2) Erysiphe. “This word denotes white mealy fungi. Examined under the microscope, they are found to consist of necklace-like threads, springing from a creeping mycelium. These clothe the surface, and send down little suckers, which adhere firmly to the leaf and decompose its tissue, or crawl among VINE MILDEW. 015 the intercellular spaces, and send up fertile threads from the stomata. The joints of these threads vary in form. Some are cylindrical, others elliptic. The upper joints fall off, and germinate: thus the fungus is propagated with great rapidity. Some- times the endochrome gives birth to multitudes of minute spondia (or seed-vessels), each of which is capable of germination within the external cell. Thus the original spore looks like a little hedge-hog, as the germinating threads project from its surface in every direction” (Berkeley). (3) Botrytis. 'This is a branched mycelium which wanders among the intercellular spaces near the under side of the leaf. It penetrates to the air through the stomata, and sets free the spores which are to reproduce it. This is of the same genus as the potato murrain which caused such ravages in Ireland a few years ago. Not only does it rob the plant of nutriment, but induces decay by its own putrefaction. ‘This disease can be reached only with great difficulty, and none of the remedies proposed are of much value (Berkeley). II. DisEASEs AFFECTING THE FRuIT AND FLOWER. 1. The Rose Bug— Macrodactylus subspinosus: Fabr. Page 454. 2. Shanking. ‘This is the decay of the stem of the bunch, or of the footstalks, caused by disagree- 5014 SHANKING. ment between the temperature of the soil and that of the air. It is particularly lable to appear after a long, cold rain. Thorough drainage is an efficient remedy. ‘The rotting of the berry results from the same cause. The preceding chapter is only an outline of the treatise which such a subject deserves. As was suggested at the outset, it treats only of the more common maladies, and is but introductory to a work, more strictly scientific, which may hereafter be given to the public. Adaptation of varieties, Affinity of soils for moisture, Air, essential to roots, ‘“¢ importance of a circulation, Altitude, Alluminum, Allumina, A: phosphate of, as sulphate of, Alluvial agencies, Ammonia, Anthers, dehiscence of Apple, soil for, «« varieties adapted to different soils, ‘¢ age of tree proper to plant, ‘¢ _ root-grafted trees, ‘4 diseases of : I. Those affecting the leaf — 1. The fall of the leaf, 2. The presence of fungi, - (1) Cladosporium dendriticum, (2) Ceratites, (8) Raestelia, 3. Insects: (1) Apple-tree louse, (2) Common caterpillar, (3) The oak-tree caterpillar, (4) The vaporer moth, (5) The Palmer worm, (6) The hag moth, (7) The unicorn moth, (8) The canker worm, (9) The handmaid moth, (10) The dotted apple-leaf worm,444 | IT. Diseases affecting the fruit and Slower — 1. Sterility, 2. Immaturity of the fruit, ak: Poe PAGE PAGE 201 3. Insects: 66 (1) The apple saw-fly, 452 150 (2) midge, 453 306 (3) The codling moth, 453 26 (4) The rose bug, 454 179 III. Diseases which affect the-stem— 179 1. Insects: 179 (1) The goat moth, 455 179 (2) The common borer, 456 58 (3) The root-blight beetle, 458 170 (4) The snapping beetle, 460 407 (5) The bark louse, 460 81 (6) The locust of the ‘‘seyven- teenth year,” 462 83 IV. Diseases which affect the tree gen- 273 erally — 274 1. Profusion of sap, 462 2. Stagnation of the sap from hun- ger, 464 428 8. Stagnation of the sap from 430 transplantation, 464 431 4, Canker, 465 432 5. Decay, 468 432 6. Freezing, 469 7. Wind-shakes, 472 433 8. Dropsy, 473 434 9. Sunstrokes, 473 436 10. Wounds, 74 437 11. Lichens, 475 439 12. Vitiation of the circulation, 475 440 | Apricot, soil for, 84 440 oe training and pruning of, 318 441 | Aqueous vapor, 34 443 | Arrangement, intensive, 289 “Fs No. of trees per acre, 290 Aspect, 26 444 | Bark, removal of, 846 450 | Berberry, soil for, 84 516 PAGE Blackberry, pruning of, 338 Buckwheat for green manure, 194 Budding machine, 878 Calcium, chloride of, 180 s sulphurate of, 180 iT 179 Canada East, fruits adapted to, 206-243 ae 1 62-15 sh 206-243 Capillary attraction, 69 Carbon, 1738 ‘© origin of in the soil, 175 Cells, multiplication of, 167 Cherry, soil for, 84 ag pruning of, 824 25 diseases of: I. Those affecting the foliage — 1. Insects: (1) The cherry-tree louse, 496 (2) The May beetle, 497 (3) The hag moth, 440 (4) The dotted apple-leaf worm, 444 II. Diseases affecting the fruit — 1. The rose bug, 454 IIT. Diseases affecting the stem — 1. Wounds, 474 2. Insects: (1) The borer, 490 (2) The cylindrical borer, 498 8. The Wart, 495 4. Gumming, 491 IV. Diseases of the tree generally — 1. Profusion of sap, 462 2. Decay, 468 8. Freezing, 469 4. Dropsy, 473 5. Sunstroke, 473 Chlorine, 180 Circles around trees, 145 Climate, island or coast, 27 as inland or continental, 28 a east of the Rocky Mountains, 30 66 west ee 66 80 -- influence of upon offspring, 384 Coast or island climate, 27 Cold, 38 Colors of fruit, 36 Continental climate, 28 Connecticut, fruits adapted to, 206-243 se best 6 varieties of apples for 100 trees for, 248 * best 12 varieties do., 248 INDEX. PAGE Connecticut, best 12 varieties of pears on pear stock for 100 trees for, 248 ae best ten varieties of pears on quince stock for, 248 as best 6 varieties of peach- — es for, 248 Corolla, withering of after fecunda- tion, 403 Cultivation, shallow for summer, 347 < summer, object of, 347 O: influence of upon produc- tion of offspring, 386 Currant, soil for, 84 " training of, 283 ae pruning of, 334 ef diseases of: 1. The fall of the leaf, 428 2. The currant-bush borer, 501 Degeneracy, resulting from age, 3889 Dehiscence of anthers, 407 - hy grometrical, causes of, 407 Delaware, fruits adapted to, 206-243 Dew, 35 Diluvial currents, deposits of, 58 Disease, general observations upon, 420 ‘¢ manner of considering it, 420 “ classification of, by Berkeley, 421 ig os *“ Weighmann,421 < constitutional, 422 statement of causes of by J. De Jonghe, 422 Disintegration, chemical causes of, 54 Ai mechanical causes of, 55 District of Columbia, fruits adapted to 206-243 Drains, direction of, 105 se! distance apart, 109 “ depth of, 112 Drainage, 90 os what lands require it, 104 a materials for, 115 ne manner of operation, 120 Ke obstruction of, 121 es benefits of, 121 Embryo, formation of, 411 Evaporation, 100 loss of heat by, 10 Exposure, 26 ue the summit of hills, 44 4 varieties of pears for, 45 INDEX. 017 PAGE PAGE Exposure, northern 45 | Georgia, best varieties of freestone a extending the season of _ peaches, 259 fruit, 46 “« best varieties for shipping, 259 s for the vine, 46 ‘“« best varieties for drying 259 es southern, 47 | Gooseberry, soil for, 85 i running of, 336 2 “s bush, form of, 283 Fecundation, false hybrid, 404 e BU ne of: ae obstruction of by super- gee : espe thse patie 401 (1) The gooseberry caterpillar 498 a Ges £ 401 (2) The swallow-tail moth, 499 Fi ty teed 85 (3) The gooseberry midge, 500 18» : II. The gooseb ildder 00 Flemish Beauty, blowing off of, 1 ae an ae . Foramen, position of, 409 nies cate 370 Frost, inland and on coast, 35 Fe anes 372 S elon j ee “« D’albret or tubular, 372 Frost-bitten plants, 40) i ce 373 Fruits for the amateur, 203 i Pulraic 973 “family use, 203 -: aa 373 =) . {> market, 203 eo loping , 374 “size of, 204 - aihip 974 ‘* adapted to different states, 205 be Ferari oc4 . . ~ ‘ ee Ce ab ae froin 374 “« production of, not exhaustive, 351 cea) eee ; 375 pes a cpa 375 ‘“ . F fee oun in faewail of Medeae 376 ‘¢ gathering of, 857 ye squire.bud: 977 ‘« preservation of, 359 %, tubular bud, 377 ‘ , eae t £ Bi “en écusson, 377 : ; vemipere ure 01, aa ‘“« for immediate fruiting, 379 packing of, ea x renewal, 380 “f of the vine, in midsummer, 381 Garden of one square rod, 285 | a _. embryonic, 381 “of sixteen square rods, age | Gr api ; py Gathering fruit, Bhg pk oy Meamence ae eR a : 6 : . scion . ane re He season of, 367 & manner of, 858 i ’ Georgia, fruits adapted to, 206-243 i wee. 368 “best 17 varieties of apples for pot, 369 100 trees, aby FEtape (hee Wine) : “best 12 do. do., 257 7 soil for, Bs f ~ | Green crops 7 ¢ best 6 do. do., 257 vm nae fae 199 “best 6 varieties of pears on a Ps Saat age fs aa pear stock 257 SET STI ECE.O ; z fn halt 19. do. af 258 s ce vetch and white lupine “ best 6 varieties of pears on sy Ee a hae aM quince stock * 258 ; eee art “ best 12 do. do., 258 «é ** rye, turnips, red clover, ‘« best for 100 or 1000 trees 258 and sperry for, 194 a best 6 varieties of peaches, 258 = best 12 es os ee 258 | Hardiness of species and varieties, 46 “« best for 100 or 1000 trees 259 | Heat, a stimulus, 36 44 518 PAGE Heat, Knight’s experiments with, up- on melons and cucumbers, 36 “radiation of, ov “ effect of, on the quality and quantity of wine, 37 ‘¢ of soil increased by drainage, 102 Heeling-in, 291 Hoar-frost, 30 Humus, 52 Hybrids, obtaining seed from, 405 Hybridization, 396 we manner of operation, 404 oe gualities obtained from the female and male parents, 415 Hydrogen, 169 Ice resting upon strawberry plants, 31 “trees girdled by, 32 “floods, 56 Illinois, Northern, fruits adapted to, 206-245 cr Central, do. do., 206-243 Be Southern, do. do., 206-248 ‘© best 6 varieties of apples for 100 trees, 268 G best 12 do. do., 268 s«* ‘best 20 do. do., 268 “< _ best varieties of apples for market for 1000 trees 268 Indiana, Northern, fruits adapted to, 206-248 ee Southern, do. do., 206-243 Inland climate, 28 Inorganic substances, 178 Insects, life of, 425 se Coleoptera, 426 ae Orthoptera, 426 a Hemiptera, 427 uf Neuroptera, 426 tc Lepidoptera, 427 cs Diptera, 427 “s Hymenoptera, 428 Todine, 180 Jowa, fruits adapted to, 206-245 Iron, oxides of, 180 ‘¢ sulphuret of, 181 Irrigation of fruit trees, 304 Island or coast climate, 27 Tsothermal lines, ‘26 Kansas, fruits adapted to, 206-243 INDEX. PAGE Honmees fruits adapted to, 206-248 best 6 varieties of apples for 100 trees, 261 sig best 12 do. do., 262 ES best 20 do. do., 262 e best varieties of apples for 1000 trees, 262 ff best varieties of pears on pear stock, 262 f best varieties of pears on quince stock, 262 s best varieties of peaches, 263 Land, value of, 135 Light, . 42 ce experiment with, upon peaches, 42 gc chemical properties of, 43 uC of the moon, 43 Lime, 179 “carbonate of, 179 ‘¢ sulphate of, 180 “c nitrate of, 180 s¢ phosphate of, 180 SS action of, 185 Magnesia, carbonate of, — 181 Magnesium, cloride of, 181 Maine, fruits adapted to, 206-243 ‘¢ best varieties of apples for, 245 & 6c “ “ pears ‘* 245 cc a9 (73 ce plums 3 245 “ Cd te “ eherries “ 245 Manganese, 181 maine adapted to clay earth, 183 tc" S peaty soil, 183 * “tt sandy soil, 186 oe heap, formation of, 186 ig uaa, 194 st oe value of, 196 ‘¢ application of, 197 6c “ec ‘© paper upon, by Boussingault, 198 ie green, application of, 200 Marl, 185 Maryland, fruits adapted to, 206-243 Massachusetts, fruits adapted to, 206-243 s best 6 varieties of ap- ples for, best 12 varieties of ap- ples for, uf: best varieties of pears on pear stock for 100 trees, 245 245 246 “ce INDEX. 519 PAGE PAGE Massachusetts, best varieties of pears Nebraska, fruits adapted to, 206-243 on quince stock, 246 | Nectarine, soil for, 87 best varieties of straw- “ training of, 311 ce berries, 246 best varieties of grapes,246 Michigan, Northern, fruits adapted “cc “cc to, 206-243 Southern, do. do., 206-243 best 6 varieties of apples for 100 trees, 269 best 12 do. do., 269 best 20 do. do., 269 best varieties of apples for 1000 trees with a near market, 269 do. where market is dis- tant, 269 best 6 varieties of pears on pear stock for 100 trees, 269 best 12 do. do., 270 best varieties of pears on quinco stock, 270 best 6 varieties of peaches for 100 trees, 270 best 12 do. do., 270 best varieties of peaches for transportation to northern markets, 270 Mississippi, fruits adapted to, 206-243 6c best 6 varieties of apples for 100 trees, 259 ae best 12 do. do., 259 of best 20 do. do., 260 am best 6 varieties of pears on pear stock, 260 a best 12 do. do., 260 a best 6 varieties of pears on quince stock, 261 4 best 12 do. do., 261 ae best varieties of peaches for 100 trees, 261 Missouri, fruits adapted to, 206-243 Moisture, absorption of by soils from the air, 68 Moss, removal of, 3845 Mulching, 348 66 material for, 348 - time for, 349 ce depth of, 349 Ks effect of upon the goose- berry, 350 6 continuance of, 350 New Hampshire, fruits adapted to, 206-243 New Jersey, fruits adapted to, 206-243 cc te best 6 varieties of apples for 100 trees, 250 best 12 do. do., 251 best: 20 do. do., 251 best varieties for 1000 trees, 251 best 6 varieties of pears on pear stock, 251 best 12 do. do., 252 best for 1000 trees, 252 best 12 varieties of pears on quince, 252 best varieties for 1000 trees, 253 best 6 varieties of peaches,253 best 12 varieties of do., 254 New York, Eastern, fruits adapted be “ce 66 6 Nitrogen, to, 206-243 Western, do. do., 206-2438 best 6 varieties of apples for 100 trees, 249 best 12 do. do., 249 best 20 do. do., 249 best varieties for market for 1000 trees, 249 best 6 varieties of pears on pear stock, 249 best 12 do. do., 250 best 6 varieties of pears on quince stock, 250 best 12 do. do., 250 best for market, 250 best 12 varieties of peach- es, 250 best 6 do. do, 250 176 Ohio, Northern, fruits adapted to, 206-248 a4 6c te best 6 varieties of apples for 100 trees, 263 best 12 do. do., 263 best 20 do. do., 263 best varieties of ap- ples for market, 264 best 6 varieties of pears on pear stock,264 best 12 do. do., 264 020 INDEX. PAGE PAGE Ohio, Northern, best 12 varieties of 2. Sterility, 444 pears on quince 3. Premature fall of the fruit, 490 stock, 264 ITI. Diseases affecting the stem — 5 si best 12 varieties of 1. Insects: pears for market, 264 (1) The peach-tree borer, 490 ue a best 12 varieties of (2) The snapping beetle, 460 peaches, 264 2. Gumming, 491 a FP best 12 varieties for 3. Profusion of sap, 462 100 trees, 265 4, Vitiation of the sap, 476 Ohio, Penal fruits adapted to, 206-243 5. Decay, 468 x best 6 varieties of ap- 6. Sunstroke, 473 ples for 100 trees, 265 7. Wounds, 474 “ di best 12 do. do., 265 Pear, soil for, 88 ae se best 20 do. do., 265 | ‘ varieties adapted to soils, 88 rs is best 6 varieties of “age of trees for planting, 278 pears on pear stock,265 “height of tree not a criterion of he us best 12 do. do., 265 value, 79 se si best 12 varieties of ‘© deep planting for dwarfs, 281 pears for market, 266 ‘¢ pruning of, 319 - se best 6 varieties of ‘* varieties for winter exposures, 45 pears on quince ‘¢ diseases of : stock, 266 I. Those affecting the leaf— ¥ if best 12 do. do., 266 1. American pear blight, 476 oe cf best 12 varieties of » Thscete: peaches for 100 (1) The goldsmith beetle, 479 trees, 266 (2) The red mite, 480 Ohio, Southern, fruits adapted to, 206-248 (3) The pear-tree slug, 480 a Ee best 6 varieties of ap- (4) The pear-tree lyda, 481 ples for 100 trees, 266 (5) Large pear-tree astyages, 481 oe 66 best 12 do. do., 266 (6) Hispa quadrata, 482 - a best 20 do. do., 267 3. Fungi, & 44 best 6 varieties of (1) Ascomyces Bullatus, 483 pears on pear stock, 267 (2) Ceratites, 432 » «best 12 do. do., 267 (3) Cladosporium dendriticum, 481 7 i: best 6 varieties of 4. Discolorations, 483 pears on quince A 5. Premature fall of the leaf, 428 4: - Ay oi ne ‘tel oe II. Diseases affecting the flower and uf p> best 6 varieties of J ig : ks 1. Bletting, or rotting at the core, 484 P ; Sian oe 2. Induration, 485 A : best 12 do. do., 267 3. Sterilit 444 Oxygen, 168 ok AD ; 4. Immaturity of the fruit, 450 Packing fruit, 362 5. Keats a in the cutaneous se- oo Peach, soil for, 87 , “ age of tree for planting, 282 IIT. Disaeses affecting the stem — “training of, 811 1. Root blight, 487 ‘¢ diseases of : 2. Insects: I, Those affecting the leaf — (1) The pear-blight beetle, 487 1. Dotted apple-leaf worm, 444 (2) The pear-bark louse, 488 2. Vegetable parasites, 483 (8) The locust of the “‘seven- IT. Diseases affecting the fruit — teenth year, 462 1. The rose bug, 454 3. Fungus upon the root, 488 INDEX. : . PAGE Pears, diseases of: IV. Diseases affecting the tree gen- erally — 1. Profusion of sap, : 462 2. Stagnation from transplanta- tion, 464 3. Vitiation of the sap, 476 4. Canker, 465 5. Decay, 468 6. Freezing, 469 _ 7. Windshakes, 472 8. Dropsy, 473 9. Sunstrokes, 473 10. Wounds, 474 11. Lichens, 475 Pennsylvania, fruits adapted to, 206-243 4 best 6 varieties of ap- ples for 100 trees, 254 “ best 12 do. do., 254 x3 best 20 do. do., 254 bt best varieties of apples for 1000 trees, 254 o best 6 varieties of pears on pear stock, 255 - best 12 do. for 1000 trees, 255 i: best 6 varieties of pears on quince stock, 255 a best 6 varieties of peaches for 100 trees, 255 As best 12 do. for 1000 trees, 255 Percolation, 101 Phosphorus, 181 Physical influences, 397 Planting, distances for, 290 Plum, soil for, 89 “diseases of: 1. Those affecting the leaf — 1. Insects: (1) The plum louse, 492 (2) The vaporer moth, 437 (3) The unicorn moth, 440 if, Diseases affecting the fruit — 1. Insects: : (1) The curculio, 492 (2) The rose bug, 454 _ 2. The fall of the fruit, 490 _ 8. Sterility, dit III. Diseases affecting the stem — 1. The plum wart, 495 2. Gumming, 491 44* : 521 PAGE Plum, diseases of: IV. Diseases affecting the tree gen- erally — 1. Profusion of sap, 462 2. Vitiation ef the sap, 476 3. Freezing, 469 4. Dropsy, 473 5. Wounds, 474 Pollen, manner of conveyance of, 408 «tubes, size of, 409 Potash, carbonate of, 181 “nitrate of, 182 Potassium, chloride of, "181 Preservation of fruit, 359 Protection of half-hardy plants, 40 Protococeus nivalis, 36 Pruning, designs of, 802 < importance of a sharp knife in, 803 §6 method of making the cut in,303 «6 severe, productive of vigor, 304 Ae formation of an equal sys- tem of branches by, 306 a for the cure of disease, 307 te season of, 808 ae winter, 308 se summer, 309 cc after transplanting, 310 o the peach and nectarine, 311 a the apricot, 318 oni (f the. pear, 319 € the cherry, 324 ee the vine, 326 2 the vine, season of, 327 ne the vine in the Ionian Island ,327 Me the currant, 334 ae the gooseberry, 836 t the raspberry, 337 “ the black-cap raspberry, 337 oe the blackberry, 538 ee the strawberry, 339 &¢ root, 341 Pulverization, 127 Vik increase of capillary by,133 “ effect of upon root-pas- ture, 134, 142 a Tull’s theory of, 136 “ by insects, 137 ¢ effects of, by Mechi, 138 - depth of, 141 + production of fresh soil x by, 148 e mixture of earths by, 149 022 « PAGE Pulverization, admission of air to . roots by, 150 ee experiments upon, 153 “4 with the spade, "154 cs do. do., effects of, 156