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Los diagrammes suivsnts Hlustrent la mAthodo. 1 2 3 6 MMMGOrv MMUmON TBT OMIT (ANS4 ond BO TfST CHART No. 2) 1.0 1.1 f4iM2S 12.5 ■tt l£ §2.2 16 uo 11.25 lu Im ^ ^iPPLIED IM^GE Inc IM3 Eoit Main SIrMt (7i«) 2as - S9M - ra> l^ Obtaiio DqptftOMiiit of Agticiitiie ONTARIO AGRICULTURAL COLLEQR Ir! : r BULLETIN IM, . . ^ S OF ONTARIO 8¥ J. B. nOWlTT. M.S.Affr. Lecturer la Botany H«Ti»tjl ffom BttOaftin t28. which ww originally prepared by F. C. HuilMa, B.S.>^ In 1900, and raVtwd by Win. LochhMd, B.A., M.S., in JMSuid 1906, ftnd iadud InK BoUetin 164, "Tlie PereAiti«l Sow Thistle and Some Other We«d Pest*,'- prepared by J. &. llowitt, M.S.A^., in 1908. -■■.n\a r,- Pi-inlcd by L. K. CAMERON. Priulcr to ttie King's Most Exeellent ' TORONTO. ONT.. /li»«i. IfllL UP S&Cd13.. CsiW^ c.l 5I BULLETIN 1861 [APRIL. 1911. Qnterio Department of Agncultuie ONTARIO AGRICULTURAL COLLEGE I « The Weeds of Ontario By J. Eaton Howitt, M.S.A., Lecturer in Botany FOREWORD. A review of he hisiory of the Weed Bufletins issued from the Ontario Agricultural College reflects the growth of the seriousness of the weed problem throughout the Province during the past twenty years, the con- sequent gradual mcrease of an interest in the practical study of weed plan^. and the never-ending necessity for education in the matter. w A w /^i n 1" '*"^°xT ''*^, P«pared by the late J. Hoyes Panton. MA., RG.S.. Professor of Natural History and Geology. No. X., which af>n#9rMi tn ifoit ••<. < ••nail *i..^. ^._-j • t_ *. .. . ' ai^ared in 1887 to the rapid incr lariy agiinst th its appearance i. had been reporteu small three-paged circular. It called attention i eeds in Ontario, and warned fanners particu- of the Perennial Sow Thistle, which had made .iborhood of Stratford, and Pennycrcss, which • • o • ^ , .." ^""'*V of Almonte. Bulletin LXXXV., appear- mg m iSga, dealt with methods of destroying eleven of the worst com- mon weeds of the time, viz.. Canada Thistle. Sow Thistle, Wild Flax PtgeoHweed. Ragweed. Couch Grass, Ox-eve Daisy, Burdock Blueweed Mustard and Wild Oat. Bulletin XCI.. "Weeds of Ontario!" iSin' 1893, besides listing 92 common weeds known in Ontario, drew soecial attention XoPennycress, Tumbling Weed, Wild Carrot, Clot Bur^znA « m. «, . " ""^ * ^^^^ seven-page circular. In 1900. Bulletin 128 "The Weeds of Ontario," by P. C. Harrison, B.S.A.!wks issued In 1Q03 a second edition, revised by Mr. Harrison and Wm. Lochhead M A M.S., Professor of Botany, was issued, and in 1906 a large third edition revised again by Mr. Lochhead, was published. From the small three pages of the first bulletin prepared by Prof.. Panton, this had grown to a full-sized nmety-six-page bulletin. sr i '^u'i-i Owteff to Urn npid incrcue in Um spread of PfrtmM Stm Tkiith TWgetod^ OA«r Weed Petto. ' hyl. E. Howftt. MSJigf., of £S?^"**^* of BoUmy, wms ittued in 1906. K.. k^ ?• «*•"»*!«« .0' »h« "uppJy of these two foioier buUetins, it nuacmdeoned advisable to incorporate them now into one publication. w!h&!LJ?*J^*' ofbotanical study during the put fonr^Sr WJAb «l»MtiTe revuton and many additions made tfiis bulkSis Sh£J^.S31 IirJ- nTS'u**'^?*' ?' «>« «et7 cuts used in this {« i,iS2*Ti.^* its distributioB amongst those who are activelymgaged StiSS!; i;, ^•^'JS** P"P"' '? *« «<=hool8. and others^SJ ire mterested in our weed problems, may have beneficial results. S. B. M cCaSADY. ACKNOWLEDGMENT^ Ofoemformatton about the weeds recently introduced into Ontario hu 2?iw2!lfe u ^*^ y^Jj"' °' Canada." by G. H. Qark. B.8A.. MO «r. James Fletcher, of the Dommion Department of Agriculture. WHAT IS A WEED? •• A^^a^ **T^ definitions of a weed, viz. : " A plant out of place " ; «^2r. 51 *^'' *'?^"«»<»ne «• un«ghtly plant that is at the same time of the crop to which the field is temporarily devoted." INJURIOUS EFFECTS OF WEEDS. M \ '^^ absorb soil moisture and thus lessen the supply of water avaH- !S* ii V***^^' P'*"*^' "^" **«'"»^ Mustard plant pumps from the sou about fourteen ounces, or seven-tenths of a pint, per day " a. They use up the plant food in the soil, and thus rob the crop plants. A!S'i!!I'°!^ * S' °^*" ^**'^'"^ *^*''" 5*^ before the crop plants, and dunng the tmie they are npenmg their seeds draw heavily upn of crops. It is some- times necessary, on account of some particular weed, to drop some crop from the rotation entirely. C Some weeds, as Watier Hemlock and Horsetail, are poisonous to stock. Quite frequently reports are received of stock being poisoned by eating such weeds. 7. Milk is often tainted by the cows eating such weeds as WM Garlic and Stinkweed. 8. The market value of seed grain, clover and grass seeds is much decreased hv the presence of weed seeds in any quantity. 9. Weeds often harbor or favor the develo[Mnent of injurious insecto and fungus diseases. 13. Weeds are unsightly, and their presence detracts very materially from the value of a farm. No man cares to buy a weedy place if he can secure a dean one. INTRODUCTION AND SPREAD OF WEEDS. Most of the injurious weed<: found in this Province have come directly or indirectly from other countries. fThey are brought in and convejred from field to field and farm to farm in various ways : By the wind. Seeds whicl "e carried by the wind usually have tufts of fine, silky hair attach) them. Such are the seeds of tiie Dandelion, Canada Thistle. Sow ihistle f annual and perennial). Willow Herb, and Cotton Grass. These and similar seeds are wafted to and fro, till they become attached to the soil and commence to grow. In some c^ses, as in the Dock and Wild Parsnip, the seeds are winged ; in others the pod containing the seed has flat ^nd extended edges, exposing much surface to the wind. The Pennycress is an example of the latte^. Some weeds are rolled alone the eround by the wind. To this class belong the Russian Thistle and the Tumbling weed* of the North- West. When these weeds ripen,, they break off close to the ground ; and, being ligh^, they are easily carried by the wir \ especially on an open prairie, and the seeds drop out as the weed roll? irom place to place. An examination of snow drifts in Dakota, a f -w yetrs ago. showed the presence of many weed seeds. Thirtv-two se-.ds of nine species were found in two square feet of a drift. In the same place it was observed that a twenty-five m'^e wind carried wheat seed a distance of thirty rods in a minute. 8€«ds which become iHdcy when wet often Mlhcrc to leaves, and go wherever the leavet are carriM by the wind. TW« is true of the PlaataSi. s. By water. Some seeds, especially those of aquatic plants, are dit- tribotcd bv water. Darwin mainUbied that manv seeds, dropping into the sea, or betng washed in fron the shore, might be carried nmly a thou- sand miles hf the movemenU of the water without injuring tfa^ vitality. Seeds which float on the surface of water are carried to and fro by the wind tin they find a lodgment and begin to grow ; and many, of various kinds, are csrried from hi^ to low ground and distributed far and near by the rills and streams which flow from mountain, hill, and upland after heavy rains and spring thaws. The commdn Speedwell and Ragweed are often distributed in this way. 3. By birds and other ammtds. Seeds are distributed by animels in a variety of ways. " It is estimated that about 10 per cent, of all flower- ing plants possess seeds which are dispersed by means of barbed or I jiVed processes." By these barbs or processes the seeds cling to the feathers of birds and the hairy coats of animals, and in this way are carried from place to pUce. To this chus belong the Bur, Burdock, Hound's (Tongue, Bedstraw, Gxkle, and such like. And the seeds of some phmts, such as Mistlftoe and the Meadow Saffron, exude sticky substances which cause them to adhere to birds and other animals. In the hardened earth taken from the feet of birds Darwin found a large number of seeds, many of which germinated ; and it is, undoubt- edly, true that seeds are often conveyed from one place to another m the dirt that clings to the feet of animals. Seeds often pass through the stomachs of animals without being digested ; and. during their passage, they are conveyed hither and thither by the animal, and finally deposited, to grow and reproduce their kind, whether of weeds or useful plants. Every farmer knows the truth of this statement as r^^ards cattle, horses and swme; and it may be men- tioned that Darwin picked from the excrement of small birds twelve kinds of seeds which were perfect in form and germinated in nearly every faistance. ' Ants, locusts, and other insects also do something in the way of dis- tributing the seeds of certain plants, including noxious weeds. 4. By man. Man himself, however, has most to do with the spread of troublesome weeds, chiefly through the agen.7 of railroads, imple- ments, farm yard manure, feed-stuffs, and impur- «J. Many weeds are carried from one province or country to another in the fodder and litter used by animals in transit on railways and in grain carried by rail. More or less of th» grain, litter and fodder are scattered at places along the track, and at stations where grain and animals are unloaded and cars cleaned out. Weeds thus get a start and spread to neighboring farms. The Russian Thistle was introduced in this way. When implements are transferred from one field to another pieces of dry cftrth or tod an fr«|tMntly dislodf«d, and new weed seeds are intro- duced. Thie if • conunoa metiiod of sprauUng weed seeds aU over farms and Ihroa^ioat whole neighborhoods. Threshing macMnca ^rom dirty §utn P'.t well known sources of trouUe under this head. Pre«h banyrard nunure from dty staUes is very often full of weed seeds, and should be rotted or piled and allowed to heat thoroughly before it is applied to dean hmd. Wild letttwe, for examfde, wu brought from .Toronto to the ncighboriiood of Burlin|;ton in manure; and in this way many other pests nave leen distributed from towns and d''*s to the farms of the Province. COLLECTION AND IDENTIFICATION. Not only every seedsman, but every farmer, and every teacher in a rural school, should have a roUection of w<^ seeds for reference and comparison, in order that he may be able ^ detect and identify such seeds when th^ are in grass seed, clover seed, rape seed, or any other Idnd of seed which is sdd or offered for sale. A good collection can be easihr made in the summer months. All that is necessary is a number of HnaU bottles and a little attention at the ri^t time. The so-called homeo- patUe vials of one drachm capad^ are suitable for the purpose, but they should be carefully and plainly labelled. If they are not so labelled, the cdlection will be valueless. Fig. A. Tripod magnifier. Vig. B. Lioen tetter. A small magnifying glass is very useful in identifying seeds. Per- huM the most convenient glass for the ptuiKwe is the trtpod magnifier (Fig. A), costing about fifty cents. The Imgn-tester (Fig. B), is cheaper, but yet quite serviceable. . . CLASSIFICATION OP WEEDS. ioll^ "*'' ^ ^^'^^ according to the length of time they Hve, m «r ,£^'0"^ weeds which germinate, bloom, fruit, and die in one year or season. Com Cockle is an exan^le. uwucjepr th^^Z il'*'*!!^' "^^'"^ germinate late in smnmer or autumn, pass their existence by bloommg, fruiting, and dying duruur the fSkwin^ •unttoer. Such are Chess and Shephf^d's PurJe. ^ loUowmg .„H .!!J!^' '''»'* Foduce leaves and roots the first year, and flowers and seeds the second year, after which'they die. [The Wild G^^^ Evramg Primrose are familiar examples. •"** jdlv TW^' ^-!i *5** '^**^ ^T *° y«"' blooming and seeding arniu- «fly. Thoe are divided into two classes : «=«»"•« »nnn Thiitii **°** '''*^ underground creeping stems, such as the Canada Chii^i,'R^t«?.tJXj:*''' '° '^^ 'P^**^ underground, such as mfSLi'^ir^!?"!- *° '"^'^ the class to which a weed bdoags. as the GENERAL PRINCIPLES IN THE CONTROL OF WEEDS. ».^J*i ^r^ *'^°'^ ^*;**^ *° "**"" s*^''- Cut those on the roMlsides th?S'' *" ^ ^** '" *' ^"""' comers,. as weD m ttSefal a. Be constantly on the watch for the appearance of new we«d< TV* not wait until a weed has become establish^^fore finS oi^^hat^ ZJtZ^*uu^''^''^\ f .'^ ^^K^° ^^* "** °f * ^^'^ plants of PeSi ^ 3- Sow only pure seed. Impure seed is dear at any price Pare«*-H IS the purchaser's right by law. and he should insist oS havi^r k 4. In deahng with perennial weeds with creeping underirround roote ^ ?vi "hriield "" °' '""'''**' ^'"■''"^ patwing. This metiiod is extremely efficacious with all sorts of weeds, induding the Perennial Sow Thistie. By fallowing for weeds a bare fallow is understood, or at least one which is given sufficient cultivation to prevent weeds frcnn reproducing themselves by seeds or "roots." A n^lected fallow is nothing more or less than a weed bed, and is useless and a source of contamination for every field on the farm. The chief objection to i J 4. EaM,Y AWI«-HA«V»ST CuinVATlON. weeS^Jch?.'p/i *«^''*y» *° ^^^^ annual and wmter annual 5. Se«DiKG Down. cWniS^^J^'S^ '^^ *°"* *?"^' °^ ^««^' particularly annuals, may be CiiffJn»%tf 1, ^ ^ . " '**^*"' ''^^^ »* expensive at the present time qShr of ^d'^^fir'^ ^ " P"*^* most'^Seds from lt^T,y 3rrSy^n^V:^ids.e^^X2: "^^'^ ^* '''^^' -»^*^' 6. Shssp DesTsoY WssDS. A flock of sheep wiU do much to keep a farm free from weed, »nrf ?a^° -iSR^^"' *1! ''.'^ "^°^ ^'^ generaltykep^upTn'^tSo i?^viA.H !S *" a'^un^^ance of succulent pasture of the finer graces ^?t o? Aeir'dlf IS^wn'r ^ '*•' *" ^ ^*T*^^ '^y '''^^'^P « »^^ • J J :. "• ^"««P will, however, even when eood ns^tnro io rXr^ ^^in^^Z'Vtt'^o^ "T^r^ seedli„gttTjSe"f?I5; sheep feed readily on Wild Mustard, Ox^^ey? Daisy ^Ya^row ffiSn' Per«,n,al and Annual Sow Thistle. Wild vSch or&are SJics S^^^^^^^ UmVs Quarters. Milkweed. Ragwort, Burdock /ndSheSs Pu^i' In fact, there are few weeds that sheep wUl not eat to the «rten? nf n^* * Tsa^fff them""!?""^"^' '' *^' ^T'' enough'oKhe^yvS ^'S tha? shel wnw J " rt "J:^^" *f '"PP'y °^ ^°^ » unusuallfshort h«?« ^^ ^ ^^^ °" P'*"*^ ^*^°8f '«aves and stems covered with bristlv SSSc^.'P'"*'' ^^ V^ *.^*^*»'' **»* " obnoxious to th«S^ When SJ plants are young and tender, however, sheep have been observed to !S ^uch weeds as Ragweed, Blue-weed. oickle^S.^ iSwS^ H^^^^^ Tongue, Stickseed. Mullein, Canada Thistle. SrifkS, TWdflax aSld • ftan W-^s of CasaSi. often that are tuistly or have a pungent flavor. Thorou|^ cultivatioa wtdi a qrstematic rotation of crops, combined with the maintenance of as many sheep as can be kept to advantage, is a certain and profitable means of keeping weeds under control." 7. Smcthkumg. The aim of this method is to kill the weeds by depriving them of light and air. This is accomplished by getting some quick growing crop, such as rape or buckwheat, established on tlw land while the weeds are in a weakened condition. The result is that the smother crop soon occupies every available foot of the land and forms a dense shade in which the weeds in their weakened state cannot continue to grew. 8. Hand Pulling. Hand pulling and the total removal of weeds is the most eflFective means of destruction, but of course is only practicable with shallow- rooted weeds not very abundant in a field. Small patches of perennial weeds can be destroyed by diggings out the plants with a foric, roots and all, and burning them. Great care must be taken to get every bit of the " root," and the patch should be watched, and if new shoots appear, they should be taken out at once. In an ordinary season several diggings will be required in order to completely exterminate a creeping perennid; . A FEW FACTS REGARDING WEED SEEDS IN CLOVER AND GRASS SEEDS. Alpalpa Seed. Out of 147 samples of alfalfa seed submitted for test by farmers and seedsmen, 15 were found to be absokitdy free from weed seeds of any kind, 98 to be free from the weeds covered by the Seed Control Act, though containing other weed seeds in various amounts ; 34 were found to contain sufficient weed seeds to disqualify them from being offered for sale in Ontario. Out of the 147 samples tested 7 were noticeably dark and discolored, indicating lack of germinative capacity, and 4 were found to contain very large quantities of grit and other inert matter. The following weed seeds were found to be the most common impuri- ties in alfalfa seed : Green Foxtail (Setaria viridis), present in 56 samples ; Lamb's Quarters (Chenopodium album), present in 42 samples; Russian Thistle (Sedsoli kali, var. tenuifolia), present in 35 samples; Buckhom or Ribgrass {Pkmiago laneeolatd), present in 33 samples; Curled Dock I 10 convolvulus), W^t(MJ!hnZ\ ^1^' ??'K B "dweed {Polygonum lif iMir Thi^i. fl"^.v^""«o sp.), Water Hemock (Cicuta mantlaia\ fC.V««mX^e) Ba™,^ fv.T. ^^»'l!*?'" /J^'^W). Canada Thistle (i:*/^«m^^ire) "X, (?r^^^^ rn«-^«), Cow Cress \m^ rotundifoZ) Cromwell (Ltthospcmum arvense), Maflow AtSIKS SiKD. RtD CtOVCR SeSD. wer??JeJ^jlf't!2*'*' T"^/ ^*' *^/°'"»*^'y f*-*^ f^'" weed seeds- « t:S:d'Te^i:^ds*Jv:^^^^^^^^^^ fe„tfAl ''"'*"' ,^^ "« ~"- Lrge amount, of g^raJd S,^ ine^JSlt ' ^ ''""^'^^ *=°"**'"^'^ II tThe fonowins: were found to be the most common impurities in red dover ieed : Green PoxtaU present in 50 samples, Buddiom or Ribgnra present in 35 samples, Curled Dock present in 36 samples, Lady's Thumb pment in ai, Racweed in 20, Lamb's Quarters present in 17 samples, PJde Plantain (Phntago ntgelH), Night-flowering Catchfly, and Sheep Sorrel present m za samples. Other weed seeds found in red clover were Mayweed, Wild Oats (Avtna fatua). Black Medick, Canada Thistle, Yellow Foxtafl, Common Pkntain (Plontago Major), Bladder Campion (SUene htifolia). Heal-all U'runella vulgaris). Pigweed, False Flax (Camelina sativa), Bracted Ptontam (Phntago anstata), Catnip (Nepeta catario), Vformsted Mustard (Brysmum chetranthoides), Sticksecd, Evening Primrose (Onagra btenms), Old Witdi Grass, Barnyard Grass, Cow Cress, Knot Grass, Blade Bmdweed, Wild Carrot, Wild Vetch (Vicia cracca). Dodder. Timothy Sksd. ' Out of 33 samples tested 3 were entirely free from weed seeds, 17 con- tamed no weed seeds covered by the Seed Control Act, 13 ctrntained weed seeds covered by the Act The following were the commonest unpurities found in timothy seed: Pale Plantain present in 16 samples, Lamb's Quarters present in 11 samfdes. Evening Primrose present in 8 samples, Rit^ass or Bucldioni present in 7 samples, Pepper Grass and Cone Flower {Rudheckia hirta) present in 6 samples. Other weed seeds found in timothy were : Mint, Ergot (Clatdceps pur- purea). Blue Vervain (Verbena hastata), Night-flowering Catchfly, Spmv Annual Sow Thistle. Old Witch Grass, Finger Grass (Digitaria son- gumale), Wormseed Mustard, Common Plantain, Rough Cinquefoil, Green Foxtail, Bugle Weed, Curied Dock, Mayweed, False Flax, Lady^ Thumb, Sheep Sorrel, Catnip and Mouse-ear Chickweed. SECTIONS OF THE SEED CONTROL ACT. [Reprinted from The Revised Statutes of Canada, 1906, Vol. m Chap. ia8, embodying the amendments passed January SS, 1910.] Prohibitory Clauses. Section »""'«' »n^sses and clovers, of which ninety-nine s«SV ninety seeds must he jrerminahle. / 5 R. VH c 41 s 4 proportion than five to one thousand of the seed sold. ^ offered e^^ or held in possession for sale. 4-5 E. VH c 41 s 6 ''"^^> "posed ««if«'?** ^''r^'' P^^'?" '^*" »«"• o*" off^.exiose or have in his oos- sesnon for sale, for seedinif. any seeds of cereals grasses cwi«fnE2l P^ts. field roots or garden vegetable crops whidh arc'nS SawTS ?«rmmatmg m the proportion of two-thirdsTf the percimtsS sSJdard nJ Vitality for g^ood seed of the kind, tmless eyery r^d^^^^'^ '3 or bag oootaining nicfa seed/or a kbd Mcordy attached thereto, it f^^ in a plain and indelible manner with the name of the kind of seed and the pcrcentafe of the seeds that are capable of germination. RacntATioNS at ths Govxanrat in Councu. Sections 6, 7 and 8a are modified by subsections a (a) and a (aa). The r^ulations made by the Governor in Council, under section a of the Act, are subject to change. On April 18, 1910, an order in council was passed ordering that the r^ulations that were approved on August 26, 1905, be res 'nded from and after the first day of July, 1910, and the following regulations made in lieu thereof: — The number of seeds of the weeds named in sections 6 and 7 of the Feed Gjntrol Act that may be tolerated in any seeds, without a£Fecting their character as being within the meaning of the said sections free from the seeds of the said weeds, shall be as follows: — (a) For seed of oats, barley, wheat or other seeds that are similar in size to these grains, one weed seed in one pound avoirdupois. (b) For seed of timothy, red clover and alfalfa, five weed seeds in one ounce avoirdupois. (c) For seed of alsike, ten weed seeds in one ounce avoirdupois. STANRAItDS OF PuMTY F0« TiMOTHY, AlSI^, Rbd ClOVCS AND AxifiKLTA StSD. The following table combines the standards of purity for timothy, alsike, red clover and alfalfa seed defined by the Act and fixed by order Kind of seed. Sections. Weeds named in sec 6 allowed witliout \}>el- iing. Weed seeds named in See's 6 and 7 al- lowed. llmothr ■. Alsike .... 8ed Clorer Altaic.... Maximum num- ber per ounce. 5 10 6 6 No. 1 Quality, Section 7. Other weed seeds allowed. (1-100). Section 8. (5 weed seeds per 1.000 of the good seeds). Slaximum num- ber per ounce. 5 10 5 6 Maximum num- ber per ounce. 822 425 184 146 Maximum num- ber per onnoe. 410 212 02 72 ■ia KXPLANATION OF REPORl ON PURITY TEST. t«ta Act in «^^15u,JErI SSfl '!?*«*»«" 6 "d 7 o? the Seed Con- of t^b^aSToL^^ r^ ^,P*^ **^*^« °^ timothy, xo per oance JETT^^ ownoi o of the Seed Control Act : but thev mav not la mulli of tiSZ^f^°i"!?.?"f^y "**^ *<^' P'"-'*^ t«t are half «, oance STm^ „«^?*//2?*°^®^ •? °""'* *^t ^ used in nial£?S» ran 6e legtUy sold, but it caniiot be rated as first-dass seed. •Seed TMtint R„i„d ,,,0, b, Geo. H. a.rk, Serf Commi»ten,r, A NUMBER OP COMMON WEEDS, WITH POPULAR DESCRIPTIONS AND NOTES ON ERADICATION «S Mi r DtsounioNi or th« WttD-t««M IixumunD om Orronn Paoi I. Grttn Pox-T'M. About one-twdfth of an indi long; oral n blunt ends; uneqi Ay bi-convex; brown and often mottleid; turf irranular and striate. Yellow Fox-Tail seed is about one-eifhth of iiKh kwg, fdano-conrex, witii fine, distinct cross ridfes. 3. Ch**s. About one-third of an inch long; back rounded; glu 7-nerved; middle nerve projecting as an awn; the palet bears a r of s|^ne-like hairs along eadi nerve. 3. WUd Oat. About diree-fourths of an indi k»g; siMndle-sh^» l^ume 9-nerved, middle nerve fonnii^ a twisted and bent awn; a t of brownish hairs arise from scar at base. 4. Couch Grass. Seeds about one-half inch in length ; raUier si der; oval; and tipped with a short awn. ^. Cwrl Dock. One-eij^th to one-twelfth of an inch long; poin elliptical, with three faces; surface smooth; reddish lm>wn. 6. Shitp Sorrel. Seeds about one-twentieth of an inch in leng uiualljr greyi^ or reddi^ Inrown, and finely roufl^ened; provide} w three equal faces, esg-skped, each face of the cover of the seed be central ridges witii tranches. 7. LamVs Quarters. Circular, lens-shaped, and black; groov^ one face ; often partially covered with the seed covering. 8. Purslane. One-twenty-fourth to one-twenty-fifth of an inch diameter; jet black; flattened ^;g-shaped; notches at smaller end; s face finely roughened. 9. Com Cockle. Seeds from one-twelfth to one-eighth of an ii long ; angular in outline ; color jet black, occasionally dark brown ; » sumce is crowded with ridges or spines arranged in circular rows le ing trim tiM scar. ■■Hiillil ne Pack. oval with 1; rarfaee (hth of an ed; glume «n a row He-shiqwd: urn; a tuft kthcr aten- g; pointed in kngdi; dded with seed bears [Tooved on m inch in end; sur- )f an indi own; each rows lead- t^ S •! « Tlie small dnmiigi betide the enlarged drawings represent the natnral sise of the seeds. INiriiiiiomoytiMiWi XiAumATv o» Orroem Pam u.iJ? ^'■^ C««i^88CUVT10NS <» TRS WttD-SUDS IlXUSTRATBD OK OpKMITX PaGE. 1 J^' la!'^ f"***^*- Seeds one-eighth to one-sixth of an inch h length; bfowny hnce-shaped; each face has 5-7 ribs; color dark brown somewhat nottled with black ; apex is tipped with a beak -hich is ahnosi as long as the seed. - 3a. Spiny Sow ThistU. One-eighth of an inch in length; varyini from oval to lance-shaped; flat; eadi face bearing three narrow ridge! whichmeet at the ends; surfaces smooth; color straw-colored to red qimi orowu. ^ 33-^*««»««'/«w ThistU. Slightly spindle-shaped with bfamt endi and often much flattened; five coarse, finely v/rlnkled ri^et mnnms MVthwise on each face; dark reddish-brown; about one-e^th of an 34. PMbane. Seeds one-twentieth of an inch long; oval ; remnants of pappus bristles remaining often at the apex. 35. DandeKoH. Seeds one-eighth of an mch long; exclusive of short "^V**?^*****^ " outline; ten ridges running lengtfiwise; provided with barb-like teeth towwtb the apex; color vanes from light to dark browB. 2fi.WUd Carrot. Seeds each one-eighth of an mch in length; and flattened on the bade: primary ribs slender, bristly, and five in number; secondary ribs, 4 in number, each bearin^i a row of barbed pridcles. 37- Pigton Weed. Nutlets one-twelfth of an inch long; <^g^shaped and curved; scar is conspicuous; surface roughened; gray in color. 38. Broad-Leafed Phmtoin. Seeds about one-twentieth inch long* flattened ; outline variable from oval to rhomboidal ; wavy lines on sur- face; color, brown. f. Pig-Weed. About one-twenty-fourth of an inch m length ; flat- egg-shaped, or lens-shaped; polished and jet black; a slight n^di t8CUITK)NS or TBK WnBHUtSDS IlXUSntATKO OM OpKNOTK PaGS. 4a Bomyard Gross. One-tenA of an inch lone, plano-oonvex < mandoliii-shaped. If is a smooth, glossy seed, and fbt color is usual greenJsh or grayish yellow. 41. JVUch Grass. A small, shiny ^y seed, about one-sixteen of an indi loa^, oval and somewhat flattened bi-convex. 43. Black Medick. Often found in the black, ribbed pod or legun whidi is somewhat coiled up. The seed is e|K-s^aP«<*> *>"* otherwi resembles AlLJfa seed. 43. Common Chkkweed. Very small seed, one-twenty-fourA *' aa inch in diameter, somewhat wedge-shaped, with a notch at the poii The sur&ce is finely tubercled, in four or fi^ looped rows on each ( the parallel faces, and the color varies from reddish to gray. 44. CmquefoU. Minute, ydlowisb-gray seeds, somewhat kidne; ^aped, and covered with curved ridges. 45. Orange Hawkweed. Small torpedo-shaoed seeds, about on twelfda of an inch Itmg, and grooved. Ripe seeds are dull jet bhc immature seeds reddish. 46. Cone Flower, Yellow Dmsy, Black-Byed Susan. A small du black seed, curved and somewhat angular, with Tie longtiudinal stri tions on At four faces. 47. WUd Lettuce. A tWn, ** , oval seed, with a slender beak tip. It has a dull black color ^^d faint cross-ridges, and is about ot sixth of an inch in length. 4B. Wild Buckwheat, Black Bindweed. A jet Mack, shiny thi sided seed, about one^i^th of an inch long. It is broadest near t abruptly pointed apex, and the ^des are slightly concave, but the angl are rounded. 49. Heal All, Self-HeaJ. A brownish seed, about one-twelfth of inch long, oblong-oval, tapering to a small white triangular scar-appe dage at the base. Dark Imes follow the margins and centres of t faces, lliese pretty double lines are characteristic. 50. Evening Primrose. An angular, reddish-brown seed, usua with a narrow wing along the edges. The four faces are finely roug ened, and faintly ridged. Some seeds are pyramidal, some prisma! g^iert wedge-shaped, but commonly four-sided with one face roundt ^ HORSETAIL FAMILY (BQUISBTACBAB). HOMWAtt Ot SCOUUITG RutH. > BqnUfhm arvemt (L). •hoots l^ST T^; is f^S^.',**T '*^*5f7' *»"-«k« »«*fy »" being UkTmti; Dine^Lf t*^ ♦?*'? descnbed by correspondwt •oon disappears frSm^tivatS fidS^' ** '"PP''**' *« '^^ THE GRASS FAMILY {GRAMINEAB.) Tig I. Fox-TAit, Yeuow Foxtail os P,cw>n Grass. 5'^/ana glauca (L). At the summit of thatpLt oTtiiH^f whi^^^i "^L*^^ '»"* o* S^owt there is a fringe of ^ST Th? li '^hich "heaths the stem (the liguk '*neath. The^eSe S'se iSfki whir3 ^^ i?I«^«' '^ ^ tawny yellow in rotor ^ ' ^^ «»«nbles millet, is bristly an with tiLI^Se" ri'„W« • felrSuS '^"iS'^ °1»».~^° '° ^I^*-. «>" & °/ «°*"'"«. July-September. ^'*^ '****"• i'"!.°i.s«d>ng, August-October. thoroughly repeat cuItivSton^ rfh th *1 ^IT" .*2 'P*^*' ^^^^t'^**' board ptoW the last tK l^Lf die Li' p°^ .^**.'' <*0"ble moul, toes, roots or com) nelt sori^ ani^^^i*; K^^ \" * ^°^^ '^^P Cpota the growing seW. FoltoT^A , ^^''**' tlwroughly thr^hou muSut plowing after ike ,Ji,trL^ ^'*h clover to bring more ^ed to the s^face wLJi .i*'*'' « plowed it is liable sh.lk>7in the latter part of harvwt^lL?,! ^^^'^ broken up. ptou vator throughout the faU. and 'rup 'as aWe '^ ^"'^^^ *°^ ^"^^' cultivated "ained tub- ith yellow- eify green mdents as it uiually ity always the weed t has an | f growth, be Itgule) d smooth! •istly andj olor, andj olor, and] mL (Seei eep early cultivate l e mould P (pota- 'oughout clover, is liable i ip, plow id culti-i Fu I. YtLLow Fox-tail. (Sftarw gUmea.) In the early mfter-hanrett ctdtivation of ttnbUe ground, iorre ^it^ "*!LrV^°r'i'* ** ^'* *^'' •"•* "^^^ ^ ^*^ •^^ h»ve -Ptjuted ondw ^ light cwering, then gang-plow and harrow, and tlu afte^ ward! with the cuttiyator as time permits throughout the fall Gush P™» • ^^^^ P*n'cl«. with nod Sf ^ nw««fing branchkts. The awn is long and bent, aud covered 2S rT^JK^ ^* ^* ^1 "***"* "^^ dry; but if moistened, it an- «J»i^ wrigfles aroand, thus causing the seed to move appreciable The principal pofaits of difference between the wild and cultivated ff^^ ^^Vu ?l* *^™*r ^'x *2lf* " *^''* •»<* ^fy- while b the httei it isthin andhairtess; and (a) The wild oat has a long, stiff awn which is bait and twisted when dry, while the cultivated oat either has a much smaller and less stiff awn or none at all. An average pUnt oroducei about 800 seeds. -• k y v«iiv« TJne of flowering, Julv. IThne of seeding, July-August £n8per8al--Conveyed from place to place ty threshing machines. and as an impurity in seed-grain. ^\\^oats are at home in any soil that will grow cereals, and they '*^ *5*'7 ?^ *^**®^ **"<** "y ««"«*' crop- The seeds possess wonderful vitality, some of them remaining buried in the soil for years and germinating as soon as they are brought under favorable conditions. Bradteahon. On a field infested with wild oats, cereal crops should be dro^)ed out of the rotation as far as possible; and hoed crops, soiling crops, hay, and pasture should take their place. To get the land under grass, It should be fallowed during part of the season, the cultivation beiMT n^uent and diallow, to destroy all seeds that may have germin- ated in the upper layer of the soil. The land can then be sown with winter wheat and seeded, or with an early variety of bariey, which should be cut on the green side. The treatment mentioned is suitable for pas- ture land, or land which has produced a hay or soiling crop during the f(M-epart of the season. Two hoed crops in succession will do mudi to exterminate this pest. \ Wild Oat. (Avena AHm.) OoUCB-GBAfS, TwnrCH-GMAM, QUACX-OUM, QuiTCBSaAII, OB QmcK-QMAu; auo Whsat-okam. Agropyron rtftns (L.). Coach-fTMi it a creeping perennial which grows from i to 3 f« nigh. It has a jointed root-stodc which penetrates deeply into tl ground and possesses great vitality. The plant produces spikes fro 3 to 8 inches kmg. The small spikelets altemat«t at each notch of tl aower staUc, with the side of the spikelet turned towards the stalk. The seeds are about yi in. long, and rather slender (Pig. 4). A average plant produces 400 seeds. Time of flowering, Tune-July. Time of seeding, July-August. Dispersal— The root-stocks are carried around by imi^ements, ai the seeds are occasionally found in seed-grain. Whatever value Couch-grass may have for pasture, its haUt < taking and keeping possession of the soil renders it extremelv objectio aUe It flourishes best in loamy or humus kHs, from idifch it is e pedally difficult to eradicate. SradkatioH. As soon as the crcm is harvested plow lightly, th< harrow widi the ordinary harrow, and, if necessary, cultivate with tl sprii^-tooth cultivator. This shakes the roots free from the soil ai makes it possible to gather them up with the horse rake. Bum i soon as they have dried sufiidently. Repeat this process two or thrt times. If the weather at this time should happen to be dry and be so much the better. Late in the fall rib up the land into drills, ar allow to stand over winter. The frost, in all probability, will rend( material assistance in the eradication. The following spring plow aboi the end of May, cultivate well, and put in some hoed crop, or summt fallow, sowing buckwheat, the crop to be plowed in. A carefully cu tivated crop of rape is recommended as being particularly effective destroying this pest. I* * iCoNfA Grass on right of figure and part of a stalk of nertanial ryt'grau (LeUmm I Ptrtnnt) on left Note the arrangement of «£leU in i^-^ua. 34 Fig. 5- SxUNX-TAIt GkASS, WiU) BaRLBY, ok SOUIWIKI.-TAII, GSASS. Hordeum jubatum (L.). This grass is very troublesome in the West, and is now quite fr quently found in many parts of Ontario, especially along railways. A native perennial grass forming tufts from 8 to la inches hig Leaves are pale green in color, from 3 to 4 inches long with rough ma gins. Flowers are in a silky, bristly spike, from 3 to 4 inches long, pa yellowish green in color. The seed is slender, sharp-pointed, somewb resembling a small barley seed, and has a long upwardly barbed awn. Eradtcation. Cut the plants whenever they appear in waste place and thus prevent them from going to seed and spreading. This weed not troublesome in cultivated crops. If it becomes abundant in pasture mow as soon as the heads come out. This will not injure the oth( grasses in the meadow. Old Witch Gsass os Tumbls Grass. Panicum capillar e (L.). An annual grass, very common in neglected hoed crops, gardens an waste places. Hants stout, with hairy leaves and large, finely branchinj loosely spreading tops (panicles) which are often seen rolling over th ground on windy days in the fall of the year. Barnyabo Grass or Cockspur Grass. Echinochloa crusgalli (L.)- This grass is often abundant in hoe crops, headlands and waste place; The seed occurs occasionally in commercial seeds. A coarse annual gras from one to three feet high with broad leaves. Inflorescence i to 3 inche long, consisting of several one-sided branches crowded together and beat ing numerous short awned spikelets. Seeds dark green to brown, flat o\ one side, rounded on the other, ^ inch long, very smooth and shining. Eradication. Proper cultivation of hoe crops and taking care to cu in waste places before it seeds will cause it to disappear. Finger Grass or Crab Grass. Digitaria sanguinalis (L.) (Scop.). . A troublesome grass in lawns and sometimes in low fields. A mucl branched, leafy annual, from ten inches to two feet high, spreading on th Fla s SxuMK-TAa Gkass. (Htrdtum jubatum.) 36 growid andfrequentiy rooting at the lower joints of the stem. (The leav( aZI^'^ ^Zl° 5"f '"'^^*'' I?"«^ ^'*^ ""o^S^ margins. Flowers are pn duced in spikes which come off from the stem like the fingers on the han. hence the common name, Finger Grass. , Eradication. A much harder grass to eradicate than the Fox-tai! hecausei* roots so readily at the joints. Repeated cultivation after hai v«t wffl do much to destroy it. Spud out patches in lawns and stir il soil with a rake and sow heavily with lawn grass seed when the groun IS moist. THE BUCKWHEAT FAMILY (P0ty(;0iV^Cfi.4£). r" Fig. 6. Dock, Cuslsd Dock, Sour Dock, or Yexlow Dock. i ^: Rumex crispus (L.). A deep-rooted perennial weed introduced from Europe. It occurs around buildings, in neglected lanes, along waysides ani m pastures. The stem is quite slender, and the leaves are from six t( twelve inches long, with wavy margins; hence the common name curled dock. The flowers are in racemes, green in color. • J «'"** ** winged, and is carried considerable distances by thi wind. The manner of attachment of the seed to the wing is showi in iUustration (Fig. 6). The seeds are light brown in color, tri angular, with sharp edges and tapering point. They are smooth an< shmy. The wind acts as an agency in scattering the seed, and it is a ven common impurity in clover and other seeds used on the farm. An average plant produces about 17,000 seeds. Time of flowering and seeding, July- August. BradicatioH. In most cases this weed can be kept in check bj the frequent introduction of well-cared-for hoed crops into the rotation The shorter the rotation, the better. The later sown hoed crops especially rape, are more effective than those sown earlier in the season! Before the hoed crop is sown, this weed may be kept from breathing above ground by going fr luently over the field with a broad-shared cultivator, whidi will cut e plants an indi or two below the surface: but, as the roots are tc ,1 and strong, it may sometimes be necessary to use the gang-plow, or even the single plow. About the ist of July, the land may be sown with rape in drills, say 26 inches apart, and kept dean, or nearly so, by the horsrhoe and more or less hand-hoeing. Tlie nqie can be pastured off in the usual way during the fall ; and, occasion- ally, it may be necessary to put another hoed crop on the same ground She following spring, say a crop of com; but much depends upon the jmeliness, regularity, and thoroughness with which the hoefng h done 37. Fra. & Guild Ooo. (RunuM eritpm.} 3« |i ii Fig. 7. SoutSL. 08 Sh«sp Sowux, Rumex acetosella (L.)- .^J^r^xJ''^n^''f^ root-stocks. The stem is slender ar «rect wiA branches. The leaves are spear-shaped and quite du^cte nju^^^^ s -eris^^i-'^rr!;; plant produces about 10,000 seeds. ^ ^ Time of flowering, June-September. Time of seeding, July-October. ck^er^^J^^iSUU.""'"^ ^"'*"*°^'^' ^"' " ^" '"-P-^y ' ^^^!^S^i. ^°7^' " 'JS"*"? *" indication of a poor, sandy, c gravdly soil. It prefers arid soils, hence liming and manuring ar iuenT^ if %.l^ *!f applicable to Sorrel, only it requires more fr« Sr*L"!LS! fe broad-shared cultivator which should be used so as t SVS^.™- '"'* below the surface of tRe soil, without bringing up an of the creeping nn, odes. s s -i* «"'. ^Jf^I^ ^^^: °r Smartweed (Polygonum Persicaria). This plan S?v wiS. "S**.u^ " *\'^ •"**"• ^*^ ^«^" are lance-shiped Treatment. Prevent from seeding, and sow clean seeds. f Fia 7. ShKEP SiKOtlL. (Rumest oceto$aia.) Fig. 8. Wiu) Buckwheat oa Bi^ck Bindwisd. Polygonum convolvulus (L.)- An introduced annual found commonly in cereal crops througl Ontaiio. It IS a twining herb with branching stems and thin, smo Jrow-shaped leaves. Flowers small, greenish, in clusters in the axil: tee leaves and at the end of the stems. Seed, black, buckwheat-shai >^ Of an mch long, but when found in grain the outer black coat is oi missmp^ and the seed is then white and waxy in appearance. .jjT'"^ of flowering, from June to September; seeds ripe about middle of July. Dispersal— By seeds. BradicoHon. Sow pure seed grain. Cultivate lightly after han and cause the seeds to germinate, then harrow out the young plants throughout] in, smooth,! the axils ofl eat-shaped,| }at is oftenl : about thcl ter harvesti ? plants. FkLa Woo BuCKWBKAt. {Polygonum convohubu.) ffHE SPINACH OR GOOSEFCX)T FAMILY (CHBNOPO- DIACBAE). Fig. 9. Lamb's Quartsrs, or Goosbmot. Chtnapodium album (L.)* An annual weed widely distributed in cultivated land. It grows to a height of from a to 6 feet. The stem is grooved and much branched. The leaves are whitish green below and dark green above. The flowers are inconspicuous and greenish in color. The seed (Fig. 9) is black and shining, lens-shaped and round, about 1-16 hi. in diameter. Time of flowering, June-October. i Time of seeding, August-October. Distribution — By seeds, especially as an impurity in clover and grass seeds. . Eradication. Late cultivation is especially necessary in combating this weed, as it flowers and seeds till very late in the season. The land should be gang-plowed shallow and harrowed immediately after harvest, and cultivated at intervals until late in the fall, when it may be plowed or ribbed up for a hoed crop the following spring. Subsequent treat- ment the same as for Foxtail (Fig. i). Oak-leaved Goosefoot. Usually spreads on the ground. Its leaves are like minute white oak leaves. Maple-leaved Goosefoot. Grows erect, with large, thin, triangular leaves. Strawberry Elite. Resembles the last, but has red seed clusters. Spreading Orache. Somewhat resembles Lamb's Quarters, but has larger and thicker leaves, goosefoot shape. It is much branched or spreading and the seed covers are warty. 43 Fia 9l Lamb's Qoarteks. (Chenofodimm album.) Pic. io. Russian Thistli. SaUota Kali, vtr. tenuifolia (G. F. W. Mey). This is a new weed which hu appeared on many farms in Ontario during the past season. It has been introduced as an impurity in Alfalfa seed. A large percentage of the samples of Alfalfa seed examined at the Department of Bcrtany this sprir^, 1907, contained the seeds of this weed, and already this fall several specimens of the weed, found in Alfalfa fields, have been sent in for identification. The Russian (Thistle is a very serious pest in several of the Western States, and is found in the Prairie Provinces, but has not yet been reported as being very troublesome there. The ^.^ts, when ripe, break off at the surface of the ground and are rolled long distances by the wind, scattering their numerous seeds on their journey. It is this tumbling habit that makes this weed particularly adapted to the prairie lands of the West, and it probably will never be a serious pest in Ontario w'^re fences, trees and other obstructions will prevent its being spread far ; n '. wide by the wind. Description. The Russian Thistle is a native of Europe and West- em Asia. It is a nearly smooth, bushy branched annual, from i to 3 feet high. Mature plants are more or less spherical in form. The stems and branches are red in color. The leaves are awl-shaped, i to a inches long, ^oh and fleshy when young, very prickly pointed when mature. The flowers are inconspicuous, being small, without petals, and solitary in the axils of the leaves. The seeds are about 1-12 of an inch long, obc(niical in general outline, with a cup-shaped depression at the upper end in the centre of which is a pointed projection; color dull grey or green, embryo spirally coiled. Eradication. The Russian Thistle being an annual weed is not hard to exterminate. If once cut off at the surface of the ground it never grows agam, and hence in well cultivated fields it is not likely to prove a pest. Fhe chief danger lies in neglect. A single plant produces an enormous number of seeds, and if a few specimens are allowed to mature they will seed down a whole field and cause serious trouble the following year, especially in a crop which does not allow of the frequent use of the culti- 45 »J!^''.-5'!i!r!" '" *^**"*? •'^"''*' therefore, be on je lookout for thb ri^ ^.£; ^J[ *"^ •pecimcns they may find in their fields, fence co^ seeded, repeated plowing will be re(,u»red in order to clean it. *" When Fig. 10. Russian Thistle. the plMt is not more than six inches high careful plowing with » Hr.- Cham from the end of the doubletrees to the dIow h^^^ • ?"? so as to have every plant dragged uTder%he%tTow."w'uhtfSw1^^^^^^ ♦"Farm Weeds of Canada." by George H. Clark and Dr. James Fletcher. THE PIGWEED FAMILY (AMARANTHACBAB). Fio. II. Picwhd, ok RiDaooT. Amurmttktu rttrofiisut (L.)> An Annual, with pink root, stout, erect stem, and many branches it grows from i to 6 feet high. The leaves are light green in color, and ovate in shape. The flowers are in spikes, which terminate branches or are from the axils of the leaves, and are green in color. The seeds (I^g. ii) are round and lens-shaped, smooth, and shiny black in color, resembling the seed of Lamb's Quarters, but slightl) smaller and thinner. An average plant produces 15,000 seeds. Time of flowering, July-September. Time of seeding, August-October. Dispersal— The seed is distributed by the wind and as an impurity in grass seed. Bradicotion. Special attention must be given to fall cultivation of tiie soil, so as to prevent plants from ripening, and to sprout and destroy the seeds which have fallen upon the ground. The land should be gang-plowed shallow and harrowed immediately after harvest, and cultivated at intervals until late in the fall, when it may be plowed or ribbed up for a hoed crop tAie following spring. Subsequent treatment the same as for Foxtail (Fig. i). Tumble Weed, or White Pigweed (Atnaranthus graectMans). This plant resembles Russian Thistle quite closely, but can be distinguished from it by its round, shinjr, jet-black seeds, and by its leaves, which, although small, have a definite blade. It is a low branched annual when growing in sandy, open fields and roadsides. Treatment. Prevent the maturing of the seeds which ripen in Aug ust. The plants, as a rule, are conspicuous, and may be readily col- lected and burned. The seeds are often found in grass-seed mixtures. Spreading Amaranth (Amaranthus blitoides-), forms large mats on waste ground, along roadsides and walks. FU. It. (Amaranthu$ retrofitxut.) THE PINK FAMILY (CARYOPHYLLACBAB). Fic. la. CoKN Spusbvy. Spergula arvensis. This is an annual weed introduced from Europe. It is found chiefly on sandy soil. It grows from i8 to 15 inches high. The flowers are small, white and in loose, terminal clusters. The leaves are needle-like in whorls at the joints of the stem. The seeds are dull black mottled with brown, round and flattened with the margin extended into a narrow rim. Time of flowering, July; seeds ripe July to August. Dispersal. — By seeds. BradicatioH. Frequent stirring of the soil to make the seeds sprout and frequent harrowing to destroy the seedlings. 49 Fig. 13. Com Spomr. (Sftrguia arvtniit.) 50 Fic. 13. Corn Cocki,k, ok Corn Campion. Agrostemma giihago (L.). An annual adventive from Europe, about i to 3 feet high, with erect habit of growth. It has but few branches, and the stems are all very hairy, wMi whitish-green hairs. The leaves are rather long and nar- row, with pointed ends. The flowers are red to purple, and the flower cup Ocalyx) has long lobes, three or four times the length of the petals. The seed capsules are gentrally well filled with seed which is black m color and kidney-shaped, with tubercles (small conical projections) arranged in rows around the sides of the seed. (See Fig. 13.) The seed is about i-8 in. across. An average plant produces about "» seeds. Time of flowering, July. Time of seeding, August. Dispersal— By birds, in manure, and as an impurity in seed. It may be noted, in passing, that the seed is injurious to young diidcens, and the husks of the seed often elude the miller and appear as black specks in flour, wbich is seriously damaged thereby. An old writer, Gerarde, says : "What hurt it doth among corn (wheat) the spoyle unto bread, as well in colour, taste, and unwholesomeness, is better known than desired." Eradication. Sow clean seed ; and when the weed is not very thick pull it by hand. Otherwise use the same treatment as for mustard. fiG. IJ. Coax CocacLE. (Agrosttmma githoga.) ;|IT3 Wm lii Fig. 14, B];,ASDBs Campion, Cow Bbu. ok Bladdsk Weed. SUent laHfolia (Mill). This is another bad weed which is becoming a serious pest on many farms in Ontario and about which a great many enquiries have been made during the past two years. It is spread chiefly as an impurity in clover seed. A large number of the samples of clover seed, especially those of red and alsike clover, sent to the Department of Botany this past sea- eon for examination as to purity, have been found to contain the seeds of this weed. As it is a free seeder, and very difficult to exterminate once it beccmies established, too much care cannot be ttdcen to secure clover seed free from this impurity, and to dig up by the roots and bum any sfaay specimens that by any means may find their way on to the farm. Description. The Bladder Campicm is a naturalized, deep rooted, freely branching, perennial weed bdcmguig to the Pink Family (Caryophyllaceae). It grows from six inches to two feet high. The leaves are ovate lanceolate, smooth, in pairs with their bases meet- mg around the stem. The flowers are white, nearly an inch in diameter and borne in loose clusters which are often drooping. The petals are two-deft and the calyx much inflated and bell-shaped, with distinct pur- plish veins. It is from the inflated calyx that the plant derives its com- mon names, Ti .P« Night-flowering Catchfly {Silene noctHlora, L.), resembles the Bladder Campion; but it is an annual, tall and very leafy, with a viscic secretion all over its stem, often so profuse that the stems and leave- are covered with small insects entangled in it. It opens at night and possesses a fragrant smell. It is not so bad a weed as its relative, th« Bladder Campion. In Fig. 14 are shown the seeds of these two plants, natural size and enlarged. That on the left is Bladder Campion, thai on the right is the Night-flowering Catchfly; Ra IS Wbiti Cocku. (Lychnis alba.) PURSLANE FAMILY (PORTULACACEAB). Fig. i6. PUBSlANt, 01 PUSSLEY. Porhiiaca oleracta (L.)- Purslane is pre-eminently a garden weed and is readily recognised by its fleshy leaves and stem, which lie prostrate on the ground. It is an annual. The stems are red, and the leaves wedge-shaped and chistered at the ends of brandies. The flowers are bright yellow, about % in. across and open only during fuU sunlight for a few hours in the morning. The seeds (Pig. i6), in smaU capsules, are black, Iddney-shaped, and extremely small. An average pknt produces 60,000 seeds. Time of flowering, July, until frost. Time of seeding, August, until frost. Dispersal— By seeds. Purslane has been used as hog feed in very dry seasons, but the cost of gathering it is too great. Bradkation. Careful hoeing and constant cultivation. The latter should be as early as possible. The same treatment should be followed as that outlined for Foxtail (Fig. 1). agniaed . It is at the across :• The tremely he cost ! latter >llowed Fig. 16. PUISLAmL iPortulaea oltraeea.) THE BUTtTERCUP FAMILY (RoHtmculactai). Fic 17. Tau. BvTTgicup. Tau. QtowfooT, MtABow Burmcvr. Ra$Mtnculus aerit (L.). A noxioas weed in low meadows and pasture lands. It crowds ou the grass and cattle will not eat it on account of its hot tasting, blisterini joke. It is seldom troublesome on well drained land under a short rote tion of crops. An introduced perennial weed with fil»rous roots and an erect, some what hairy stem, frhe leaves are three^arted with tiie divisions agait three-deft with deeply lobed segments. IHowers are produced from earlj m June until frost. They are bright yellow in color and conspicuous The dry seed-like fruife are in globose heads. Time of flowering, June to September; seed ripe by July. Dupersal— By seeds. Eradication. When possible the iand should be well drained c r brought under cultivation, and not seeded down agam until the w ^ has disappeared. On pasture lands which cannot be cultivated the r cod should be cut closely two or three times each year; once early in jan< and again in July or August. {This treatment to be successful must be repeated for two or three years. Fx& 17. Tall BmmcuF. (RtmuHculiu aeris.) THE MUSTARD FAMn/ (CRUCIPBRAB). Ptnm-cuu, BAtTAiD-ciisst . kaw u WttD, Wod Gaiuc, m Thhupi jT..>u,e <^ ,. k A winter annual, introdttced from Enrr tc, and a very bad wc It is very abombnt in Manitc^ and i i .. /ninf rather ooosmon Ontario. It grows as an erect plant, with a n jotber of bran^ei fr the upper part. The leaves are numerous during the first of the seaa Mid daap the stem by ear-line Irbes. The flowers are wUte and sm with s|M«adii^ flower stalks. The pods which suoMed tlM flower ; very diiracteristic. They are nearly ortncular, abovA half an u broad, quite flat, with a larouA wtag aJl around, and notdied at the t IHg. i8 shows this pecnliarhy. JSMh pod produces about twelve sec wfajdi are dark brown to Made and oval in shape, with curved lines. . average i^ant produces about ao,ooo seeds. Tlie pkmt has a peculiar odor, resembling that of garlic, hence so of the common names. The seed also has a very pungent taste. Wl eaten by mikh cows, it imparts a disagreeable flavor to the milk. prime of flowering, May-September. Time of seedii^, June-September. Dispersal — Chiefly by the wind. Ert^cation. Contintious growing of hoed crops with thorou cultivation thereof, followed by heavy seeding with rye. In places whi the weed is very thick, mowing and burning is a good remedy. 1 method outlined for eradicating Mustard is applicaUe to this weed. uc. btd weed. ommon iri ichea from] the scMon,j and small, flower are I ' an inchl at the top.f etve seeds J lines. An I lence sonMl te. When! nk. thorougbl ices where! ledy. Thej weed. Pkmht-obss. (Thkuh anwHM.) 6a Fie. xg. Ptmt Gkass, ok ToNcut GsASt. Upidium apetalum (Willd.). Fig. 19. ^'^'^ ^'*'* *^ P<^ «s shown nearly natural size i Tune of flowenng, Tune-August. ^^ Time of seeding, July-September. Dispersal-By birds and as an impurity in clover seed ad a half I saves ter- g^tly cut mtn are! ced pods xtranhy. 1 size in j i-i6 in. » , and do erminate IV plants for the tuL ig. P^not Oust. M, i i FiC. 20. Fitu> PsppEs Grass or Cow Cress. Lepidium camp e sir e (Br.). This is a comparattvdy new weed in Ontario, about which many enquirie' have been received during the past few years. From informa- tion gathered from correspcmdents it seems certain that it has been spread as an inqmrity in dover seed. Fldd Vepptx Grass or Cow Cress is an introduced annual or biennial weed bel(Higing to the Mustard family (Cruciferae). It grows from i to a feet h^ and branches freely above. The basal leaves are petioled, oUoc^ and entire ; Mem leaves spesr-^haped, entire or sl^[fatly too&ed and clasping the stem by their arrow-shaped bases. Flowers are ttnaU, white or yellowish in cdor. The seed pods are l»-oadly ovate, boat-shaped, being rotmded below and hdlowed out above, thtv stand out stiffly from the stem on pedicels of about their own length. The seeds are reddish brown in cdor, about i-ia of an inch Icnig, sharply egg-shaped, rotmded or some- what flattened, and the surface is granular and slightly scurfy. Bradieation. Hand pull small patches. Cut clover eaffy enough to prevent seeding. Plow up badly infested fields, and put in a hoed crop for one season. Vta. aa FkiLB PBrm Giam w Cow Qmu. {Ltpakm emmptttre.) 66 ^. :^4. Flc. ai. Shbphkbd's Purse. Capsella bursa-pastoris (h.). A vinter annual, naturalized from Europe, with a long, deep, taj root. The root leaves are lobed and form a large rosette which lies clos( to the ground, and in this state it passes the winter. The following spring a more or less brancheo stem arises, with arrow-shaped leavei thereon. The flowers are very small and white in color, and are mud less conspicuous than the seed vessels, which are triangular in shape, an( are attached to the stalk or pedicel at the lower apex of the triangle Frwn the character of these pods, the plant obtains its scientific anc common name. The triangular pod is divided down the centre by a par tition, forming two cells, each of which contains from lo to 12 seed; (Fig. 21). In size the plant varies greatly from a few inches to tw< feet, depending on the soil and locality. But even a very diminutiv< plant produces many seeds. /The seed is very small, light brown in color and oblOTg in shape (Fig. 21). An average plant produces over 5o,oc( seeds, ^^ig. 21 shows shape of seed, also the arrangement of seeds ir the pod. Time of flowering, early spring till the bq^inning of winter. Time of seeding, early spring till the beginning of winter. Dispersal— As an impurity in grass seed ; also by birds, as the pod< when ripe open and drop the seeds, which are eaten by birds, and often evacuated without digestion or injury. BradicaHon. It easily succumbs to cultivation; and as the plani spreads only by seed, persistent effort should be made to prevent seeding & nam. Sbxphob^s Poin. (.CapstUa burta-ptutoHt.) Ill Fig. aa. Pai^ Fi,ax, m G or PutASunt. Camelina sativa (L.). This weed probably came to diis country in imported flax seed. Ii Europe it is cultivated for the fine dl extracted from tiie seed, which i used in feeding cattle. Its common name arose from its suppose( resemUance to flax. An annual and winter annual, with simile or branching stems; th lower leaves' are long, with a stem, or petide; and the upper ones das] the stem with arrow-shaped bases. The flowers are numerous, yellow Mad somewhat inconspicuous. The seed vessel, or pod, is pear-shapei •or (lobular, with a small projection from the upper end. Hie little stalk hdding the pods are slender and spreading or ascending. The seed t brown and ku-ger than that of Shepherd's Purse. (Fig. aa.) An averagi iplant produces about 40,000 seeds. Tbie of flowering, June-August. Time of seeding, July-August. Dispersal — ^As an impurity in flax and clover seed, and occasionally ingrain. EradieaHon. Plow lightly as soon as the crop is harvested. Harrow and ^en cultivate frequency throughout the autumn, to destroy th( young seedlings. It is unportant that this autumn cultivation should b( thorough. Grow a hoed crop the following year. Itbt rotation of crop; shcNild be modified in the infested fields hy dropping winter wheat ou< for a time. Grass seed should be sown along with the spring wheat 01 barley. F^ ax {CmnHm saHva.) Fic. aj. Bau. Mustako. Neslia ptmtculata (Desv.). A weed of European origin, coninum in grain fields in the western provinces and now becoming frequent along railway lines and in waste filaces in Ontario. A slender annual or winter annual from a to 3 feet hig^. Leaves oblong, p MutTA», Chamocx, ok Htnicx« Bratiiea arvtnrit (L. Ktte.). Among the worst weeds in Ontario is the Wild Mustard, an annw naturalised from Europe, with fibrous roots and erect habit of growt TJe stem is rough, with stiflF hairs somewhat scattered over the surfac The branches arise from the upper part of the stem and bear obloi leaves and the lower leaves have one terminal large lobe and sever smaller lateral ones (lyre shaped). The flowers are yellow, showr, at about ^ in. broad, with stout flower stalks, which are more noticeali when the plant is in fruit. The pods, which appear on the lower pa of the stem whilst the top is still m flower, are from i to 2 inches Ion and are either sfH-eading or ascending. ^The shape of the pod is characteristic; it is constricted between tl seeds, thus givingthe appearance of a rounded enlargement where eac seed IS borne. iThis an)earance is termed "knotted." The pod te minates in a two-edged beak, and the two valves of the pod are strong veined or ribbed. The seed (see Fi^. 25) is black, i-io in, in diameter, perfectly spher cal, and very much like rape or turnip seed, and it retains its vitalii for a long time when buried in the soil. An average plant produo 15,000 seeds. Time of flowering, June-September. Time of seeding, July-September. Dispersal— By birds and implements, but chiefly as an impurity i Eradication. Owing to the great vitality of the seed, Mustard a very hard weed to eradicate. The seeds, once in the ground, live ff years, and continue to germinate as they are brought near the surfac Hence it takes patience, a great deal of labor, and a long time to get ri of the weed, when it once gets possession of the land. W\en present on! in small amounts, hand-pulling is the best method, provided the pullin is done before seeds have formed; and as persons pulling in a hurr cannot wait to examine for seed, it is best to put the weeds, as they ai pulled, in bundles where they can be burned when dry. When fields are overrun with the weed, it is best to proceed as fo lows: Harrow stubble-ground early after harvest, or gang-plow an harrow. As soon as the seeds have had time to sprout, cultivate thoi ougMy; repeat cultivation at intervals; and rib up with a double mouk board plow the last thing in the fall. Put in a hoed crop, either rooi or com, Ae following spring, and cultivate it thoroughly throughot the growing season. Cultivate and barrow well two or three times afte roots or com, having first mn the plow along each row of com rool to cut the roots and tum them up; and rib up before the frost. (If th Fia 25. MUSTABO. {Brassica arvensis.) 76 plow it used after roots or com, it is lilsdy to brioff more teed to the sttrlMe.) Sow a crop of gndn tfw foDowtaf tpmg and leed with dofcr. Pun weeds by hand oat of die grain crop; tan a crop or two of hay, or pasture; and break up tfie dover sod, tretftinff it as outlined in the note to Mr. Rennie's method oi deaning land. (See page 138.) When necessary at any stage in this method, use a grubber or subsoil plow to stir the soil to :. greater depth than is reac^ by tiie surface cttltiTatioo. Spiaying with CHtancAis. Repeated tests have proved that solutions of blue stcme (blue vitriol, or copper sulphate) or of green stone (copperas or iron sul{diate) can be used suocnsfully to destroy Mustard in cereal crops without injury to die Aandii^ grain. (The expenments conducted by die Botanical Dqifiment would indi- cate diat iron sulphate is on the whole more satisfactory for this purpose than copper sulphate. A 90 per cent, sdution of iron sulphate should be used (80 ibs. to 40 gaUoos of watu ) and die fidd should be sprayed on a br^^ iw oy da3r when the young Mustard jdants are wdl up and just rbout to come into bloom. If te sdution is ^^ed too late some of the older plants will not be destroyed and may produce senis, and the results, therefore, will not be entirdy satisfactory. If ccq>per sulphate is used a a per cent, solution (i lb. in 5 gals, of water) is suffiaently strong. Stronger sdutkms would be apt to injure the crop. An ordinary barrd sprayer with a hand pump or a potato sprayer wkh a broad-cast attachment can be used to apfdy these sduUons. Inir- tfaer information on sprayiiw to kill Mustard may be had bv aj^lying to the Botanical Department, O. A. C. Fig. a6. HABS's-tAB MUSTAin. Conrmgia orientaUs (L.) (Dumi stubUe and by roadsides; spreading rapidly. It has been found in one or two irfaces in Ontario. An tamvail and winter annual with a straight, slighdy branched stem from i to 3 feet high. Whole plant smooth and when young covered with a bloom like that of a odibage. Leaves somewhat fleshy, oblong oval, entire and dasping the stem by two rounded lobes. They resemble in shape a hare's or ratMt's ear, hence the common na^ne, Hare's ear Mustard. Ftowers are creamy white, about % indi across. Pods are four-sided 9Qd 3 to 4 indies long. Seeds, are dark reddish brown, i-is of an inch long, somewhat wheat-shaped, with the surface granular roughened. Hau's-iai MmTAU). (Comnmgia onmtaljt.) 'I II 78 Time of flowering, July; seeds ripe in August and September. Dispersal — By seeds. BradicaiUm. Hand pull small patches when the weed first makes its ^ipearance. If a field beaxiMs badly infested, try thorough, early, after- hanrest cultivation. , Tumbling Mustard. Sisymhrimn altissimum (L.). This Mustard, which is troublesome in the West, is now found in nany parts of Ontario, though it has not yet become a pest in cultivated fields in tSiis Province. The fact, however, that it produces great quanti- ties of seed indicate that if neglected it may become a aerious nuisance. It is therefore adviss^Ie that a watch be ktpt for it in order that any plants which appear in cultivated fields may be destroyed before they inafure their seeds. TnnUing Mt^tard is a bushy-brand»d annual or winter annual, from 3 to 5 feet h^h. The lower leaves are pinnatifid with the segments pointing backward (rundnate) ; the tq>per leaves are very variable in size and outline bttt are all deeply {Msnatifid with narrow s^ments. The flowers are numerous at ^ end of the braackes, pale yellow, and about >S of an inch in cbameter. (They are succttded by long, sloider pods, each of wlndi contams nmaerous seeds. The plants, wh«i mature, break off near the surface of the gromid and are ndled about by the wind, scat- tering^ their seedb as they go. It is from this tumbling habit that the plant gets its naav, Tunrflfag Murtard. The seeds are very small, less than 1-24 of an inch is length. Tl^y are greenish yellow to olive brown w color and somewhat U-slutped. Boag so very snnll they are not readily crushed by grinding and thus frequently find their way unharmed into dttop. It has been estinmted tliat a single plant may produce a million and a half seeds, but fortunately they do not appear to have the vitality of the seeds of Field Ma^ard. Time of flowering, June to September ; seed ripe in August. Dispersal — By seeds. BrculicatioH. Pull stray plants along the roadsides and in waste places before they mature. Hand pull in fields unless very abundant. Badly infested fields may be cleaned by fall cultivation and harrowing over siting grain to destroy the seedlings. Pic. 27. GuKN Tansy MimTARO. (Sisymbrium incisum (Engelm.), var. filipes (Gray). A common weed in grain fields in the West. In Ontario it is found chiefly along railways and in waste places. During the past year ( 1910) it was reported as growing as a weed in cultivated fields from ont county 79 F^ 27. CaMMS TaKSY MUiTAIB. iSisybrium incisum.) 8o in Ontario. It is a biennial weed and produces the first season a rosetti of finely divided leaves whidi Ue on the ground; the second season i produces a much tomched stem from a to 4 feet hirii. Leaves brigh green, much divided into fine segments. Flowers l^^t yellow, H 0 an mdi across, borne in doogated clusters (racemes) and succeeded b^ narrow, smooth, slightly curved pods from Ji to ^ inch long, on slender Hx^adng stems. Seed is brownish red, about 1-35 of an inch long, some what oUosy in shiq>e. {Time of flowering, July; seeds ripe in August Dispersal — ^By seeds. Eradication. Hand pulL dean badly infested fields. (Thorough fall and spring cultivation wil Fig. a8. WOKMSSSD MUSTAU, OK TB«ACI,t MuSTASD. Brysimim chtinmthoides (L.). A native weed, which seems to be spreading rafHdly throuf^ the ProvMiee. Many specimens have been sent here for examination during the past year. An annual or winter annual with erect and branding stems from 8 in to 2 ft. high. The fdiage is bright green and abundant. The leaves are loDjg, tapenng at the base into a short petiole, and they are covered j^f. T-shaped hairs. The flowers are ydlow and about J^ in. across. The httle stalks (pedicels) holding the pods, come out from the stem ^hqudy, but the pod stands erect on the pedicel, parallel with the stem The pod is about an inch Iwig and four-ai^ed, with one row of seeds m each cell. The seeds are i- 16 in. long and light brown in color, with a furrow on one side. An average plant produces 35,000 seeds. Seeds give a bitter taste to feed obtaining them. Time of floweriiur, June-July. flTime of seeding, July-August. Dispersal — Frequently as an impurity in dover seed. Bradkaiion. Hand pulling and burning is the best remedy when the weed occurs in small quantities ; but where there is much of it, the following procedure is advised : Harrow stubble-ground early after bar- ♦tst, or gang-plow and harrow. As soon as the seeds have had time to sprout, cultivate ; repeat the cultivation, and rib up the land with a double mould-board plow the last thing in the fall. Put in a hoed crop, either roots or com, the following spring, and cultivate thoroughly throughout the growing season. Cultivate after the roots or com, sow a crop of grain, and seed with clover. If not too much, pull weeds by hand out of ♦ihe growing crop. Fig. a8. WmMSKD MusTAao. (.Erytimum chieranthoides.) I is /' i«S« "d flowers It requires however, only a glance to disHnguish it. the leaves are more or less deep y pwnately lobed. The flowers are light yeUow and the SL DlaJrJn'K^ veined with purple. When thi ps an *""«»» and if kept fr^W^L^.T? '*?'**'y *i* °"*- '^°*' 8^*^a» *=a^« <^nn°t »>« «er«sed m selecting seed free from the seeds of the weed. THE ROSE FAMILY (ROSACBAE). Fig. 29. Rough Cinquewju. (Potentilla monspcliensis (L.). i„ .^ "***!* *"r"^*' '^^*** t°""d frequently in meadows and hay fields m some parts of Ontario. Stem erect, branching, rough-hairy. Leaves compound with 3 somewhat oblong, oval, toothed leaflets Flower, bright yellow in terminal clusters (cymes). The seeds are Ught brown 1«Stnir«^i° •*" '"^':J°"&' blunt and slightly curved, wi* branc*m? lOBgitudmal vems on the surface. Time of flowering June to July; seeds ripe July to SeptenAer. Dispersal— By seeds, which are frequently found in timothy seed. bradtcatton. This weed will not persist in cultivated crops Rtteated close cutting m hay fields, meadows and waste places will destT^TiT Fig. ag. HovcH CiNQumo. J RoUGR-nuiTID ClMOUgfOII^ Pottntitta rteta (L.)- m>ut ^i^'SSL''^ "^j***. ''if*^' l**«^' y^^^ *»^»«» thM the Iwt ^UI^^T!^^^^^^' I» »• 'ported tf bdnf troubleiOBie it mjdowi and hayfields in fame ptrti of Ontaria Bmldng up the fieic ■nd patting it under a cultivated crop should clean out this weed. THE PEA FAMILY (IBGUMJNOSAB). Whiys Swwt CunrxR. MtlUotw alba (Desr.). This and the yeUow species (MtlUotus officmalis) are found com- SSZ^" "^tSi* ^'^"^ ""^ neglected fielcb about dttes and along ^^' S*y "" ^' ™* ^^^"^ ?>«»*»' «"» thrive best on heavj Clay sous. They are bienmaU and produce the second year tall, toueh iJSJJf!2f*^#" which^bear the sweet scented flowers so attnuSve toboneybees. These phmts have the redeeming features of being nitrogen gatherers and good sod formers. 5r««f(rf»(m. Keep closely cut for two years in succession. Hants w!2.Y' *i"* ®° **'!X '" ** *«»^ "»y P"®^ •«*»*» «"<* produce seeds before frost comes. Two or three cuttings are therefore often reqnired m a sug^e season. ^ WlU) TaSSS ok PnXNNIAt VfTCH. Vicia cracea (L.). n^tJ^i^Pf!^!*^ plant with a deep system of root-stocks. It is often reported difficult of eradication. The flowers are Mue, and there are lo to 12 pairs of leaflets to each compound leaf, ffhw phmt appears topersist most tenaciously in damp soil. The same cultivation wtK^is used m controlling the Canada and Perennial Sow Thisties wiU subdue the Ferennial Vetch. THE EVENING PRIMROSE FAMILY (ONAGRACSAM). Fig. 30. Common Evsninc Pumboss. Oenothera biennis (L.). 1. ^.^'' t*°"*' .^^"^^ biennial weed found frequently in Ontario in hay fields and on the edges of cultivated fields. The leaves are from i to 6 inches long, oblong to lance-shaped with wavy, slightly toothed margins. Fta-ja Common Evkning Pummmi. iOtnotkera bttrnms.) gowm open in the cvemng and ut luve and bright ydlow in color. ^"LKK.^***** *** *•" •*"» •*»** «"« "«»* •» «»ch in length. Seeds are reddish brown and irregular in outline, 4 to 5 tided. TJae of flowering, June to September; seeds ripe by August. DwpersaJ— By seeds. 1- / -• Eradication. Spud out plants on the headlands and in the fence corners. Never troublesome when a field is brought under cultivatitm. THE PARSLEY FAMILY (UMBBLUFBRAB). Fig. 31. Spotted Cowbane, o« VVate« Hemu>ck. Cicuta maculata (L.). A weed of wet, marshy places. Cattle are frequently poisoned by eating the roots of this plant, especially early in the spring when pasture is scarce. A smooth perennial from 3 to 5 feet high. Leaves compound, of 2 or 3 divisions, the stalks with expanding bases which clasp the stem the leaflets lance-shaped and sharp-toothed. The flowers are small, white and in flat topped clusters (umbels). The root consists of a number of spindle-shaped " tubers." BradicatioH. Watch marshes and low places for this weed and hand pull any plants that are found. This is easily done if the roots are first I«x>sened with a spud or other implement. Be sure to destroy the plant*; after pulling them. ^ r V Fio. 31. Spotted Cowbane or Water Hemuxtk. (Cicuta maculata.) ^-2?5?> MKROOOrV HMUinON TBT CNAIT (Aral and ISO TEST CHART No. 2) [1.0 lis ■" ■■■ £ Itt L£ 12.2 V^ U Ma |t.4 ||.6 A /iPPLIED IM^IGE Inc ISM ea>« Main Strad RoehMtar, Nnr York I4«M USA (716) 4a2-aXI0-Pt>0fM (7i») ; -roa Fic. 3a. Wiu) Camot, Bibd's Nbst, or Dvnt's Pi^gui. DoMCKs earota (L.)- Wjw is a biennial, naturalized from Europe, with a deep, strong tap root, a bristly stem, and much divided leaves like the cultivated oirrot The dusters of flowers are in compound umbels which resemble bird- nest cavities. Time of flowering, July-September. Tfane of seeding, August-December. Dispersal — ^By seeds carried by wind and animals. SradkatioH. Spudding is quite effective when the roots are cut before blossommg the first season. When the field becomes badly infested It should be plowed and cultivated and treated to a hoed crop, as described for tile treatment of Blue-weed (page 94). MILKWEED FAMILY (ASCLBPIADACEAB). MiLKWcxD, ot SaKwnD. Asclepias syriaca {h.). This plant quite frequently appears in cultivated crras in Ontario, and once it becomes established its extermination is a difficult task. It is a deep-rooted perennial weed, with a stout stalk from a to 5 feet high covered with soft hairs. Leaves large, lanoe-oblong to broadly oval with fine down on the under surface. Flowers dull purple to white in cotor and borne in compact clusters (umbels). Fruit, a larse pod which opens down one side (follicle) to allow the white plumed seeds toesc^w. Eradication. Cut early to prevent from seeding. Spud out scatt« ^ts in meadows and grain fields. 11 a .l^vl :; very badly infes weak it up and follow one of the methods suggested for Perennial Sow Thistle. tgtap arrot bird- e cut 'ested ribed tario, to 5 MuUy irhite pod seeds Sow Fia 3z WuD Cabiot. (Dttuctu Carota L) \ 9> THE MORNING GLORY FAMILY {CONVOLVULACEAE). Fig. 33. Bindweed. Convolvulus arvensis (L.)- A very troublesome weed which winds its tough and curling stems around the stalks of various plants, partially chokes them, and thereby hinders their growth. It is a perennial with a very extensive creeping root which penetrates far into the soil, and any piece of the root possess- mg one or more buds is capable of starting new plants ; hence it is neces- sary to clean implements very thoroughly after they have been used in a field contaming this weed. The stems are branched and either trail on the ground or climb by twisting around swne other plant. The leaves are rather small, with 2 to 4 lobes at the base, giving them an arrow- headed shape. The flowers are white or rose-colored and i inch across. The seeds, three in number, are large, black, and angular, and are held m a spherical capsule (Fig. 33). An average plant produces about 160 seeds. Time of flowering, June-September. Time of seeding. August-October. Often no seed is produced. Dispersal— Chiefly by means of its creeping roots ; sometimes as an impurity in seed grain. Eradication. This is a very difficult weed to eradicate, and careless cultivation only increases the trouble by carrying the roots from place to place. Salting is recommended by some practical farmers who have suc- ceded in eradicating this very troublesome pest; but we cannot speak from experience as to the value of this method of treatment. The weed may be kept in check by the frequent introduction of well- cared-for hoed crops into the rotation, and the shorter the rotation the lietter. The later sown hoed crops, especially rape, are more effectual than those sown earlier in the season. Before the hoed crop is sown, the weed may be kept in check by going frequently over the field with a broad-share cultivator, so as to cut all the plants an inch oi two below the surface without bringing up any of the creeping rootstocks. About the 1st July the land may be sown with rape in drills, say 26 inches apart, and during the early growth of the crop the weeds may be kept in check by means of the horse-hoe. with more or less hand-hoeing. If the land has been well manured or is naturally rich in vegetable matter, the rape will make a rank growth and smother some of the weeds. The rape may be pastured in the fall, and in extreme cases may be followed by another hoed crop, such as com. If the corn is well cultivated and hoed, most perhaps all, of the plants will be destroyed. Fte. 33- BlHDWBD. IComvohmlus arvtnris.'i 92 In same cases it may be advisable to suininer-f allow, and in sucl OSes It M bMt not to plow more tha^ is absolutely necessary, but t( depend mainly on the broad-share cultivator. Buckwheat sown on sum mer-faUow and plowed under when coming into blossom, followed b surface cultivation with broad-share cultivator, will assist very much ii kiUing the weed. If necessary, the summer-fallow may he followed by i hoed crop. ^ Fig 34. DcnoBK, Dsvii's Gut, or Stkangle Weed. Cuscuta epUhyntum (Murr.). This weed is spreading very rapidly as an impurity in alfalfa anc clover seed, t is by no means a new weed in Ontario, but during th( past year has bcM especially abundant. Judging by the numerous samples sent in lor identification, and by the host of questions asked concen ing it more information is required as to its appearance, habit of growth and •"""od of control. It is therefore discussed rather fully here. II *^<*«'" differs from ordinary weeds in possessing no leaves. Th< yeuow thread-like stems of the plant twine around the clover plants and send into their tissues small short rootlets, which are called suckers or haustoria. By means of these suckers the Dodder draws from the dovet the food necessary for its growth and reproduction. It thus kills the Clover 1^ robbing the plant of its food and causing it to starve. The yellow thrMd-hke stems of the Dodder first appear quite early in the season, ffhcjr soon spread from plant to plant until a tangled mass of yellow threads covers a whole patch of clover. Badly infested fields may t>ecome entirely covered with this pest in a short time. On these yellow threads arc produced dense clusters of small white flowers, which are succeeded by rounded, brown seed pods. Each plant produces a large number of seeds. The seeds vary in size from 1-24 to 1-15 of an inch; are grey or yellowish brown in color, vary greatly in shape, but are gen- eraUy somewhat oval in outline, and the surface is dull and roughened. — ^ f?* ff^* should be taken to secure clover seed free from Dodder seed. Alfalfa seed containing this impurity is dear at any price. Small patches should be mowed, raked and burnt early enough to prevent seed mg. Ii by any chance some of the seeds are scattered before the patches are mowed, several thorough hoeings should be given in order to prevent any young plant" from getting established. Badly infested fields she ' J be plowed and put under a hoed crop for a season. Clover or alfalfa should not be sown in the field again for two or three years. « Flowenng Outer; ft Qttster of Dry sSd\ sUis. From . (^R«,r«H«r.^ K .X. I*oto««I*- Natural size. F^" • ten~^"';^i*'' U^ S Dept. of Agriculture, from manners Bulletin 306 Dodder ,n Relation to Farm Seeds," by F. H. Hiltman.) 94 THE BORAGE FAMILY {BORAGINACBAE). Btint BiTK. SncKSUD, ok Shmp Bui. Lappuia echinata (Gilbert). A diMgreeable weed on roadsides, iit waste places and in pasture* The burs become matted in the wool of sheep. An introduced annual and winter annual. Erect and branching ^?T***^**'* ^^^^ ^"- ^^^ ""«"• oblong, stem-leaves withou stalks. Flowers small. X inch across, pale blue in long, slender one-sidec clusters. Seeds greyish brown in color, pear-shaped, about X inch lone with hooked spmes around the margin. Time of flowering, from June; seeds ripe in July. Dispersal— By seeds. Eradication. In pastures and waste places continued close cuttinj for a number of years will prevent its seeding and finally cause it tc disappear. If a field becomes very badly infested, break it up and put il under a cultivated crop for a year or two. Hand pull stray specimens. Fic. 35. Blue Weed, Viper's Bugloss, Blue Thistle, o« Blue Devil. Bchium vulgar e (L.). A biennial weed naturalized from Europe, with deep tap root, which penetrates to a great depth. During the first year, the portion above pound IS a rosette of leaves; and from the centre of this, next season bristly, hairy, and erect stems arise i to 2^ feet high. The leaves are oblong, 2 to 6 inches in length, with both upper and lower surface hairy. The flowers are numerous, arranged in a rich spire, and are azure bliie m color. The seeds nre hard and brown in color, with a broad base and f^ Jr*^^'i^u° ^ '^^^ '°"l {^'^- 35)- An average plant produces 3.500 seeds. The seeds are probably dispersed in winter by the wind, as fhty remain for a long time on the plant. Its names, both Latin and English, are significant of the notion that It was an effectual remedy against the bite of a vipc •. The weed prefers gravdly and lime soils. Time of flowering, July-October. Time of seeding, August-October. Dispersal— By seeds, especially in winter, when they are blown over *he snow. Eradication. This weed gives very little trouble in arable land, if the cultivation is at all thorough. In fence comers, on roadsides, and in waste places, cutting below the crown with a spud is practically the only effective method of destroying the weed. Sometimes, however, this is impracticable, because of the number; and in such cases some special treatment, similar to that recommended for the Dock may be resorted to. I m Fto-jS. Blue Weid. (Eekium Vulfare.) Pic. 36. Houm>'8 TdNGvz, Doc Bus, os Bum. Cynoglossum officmalt (L.). brtnAed, 1 to 3 feet Wgh. The lower leaves have petioles; the ttppe ones ctarn the Stan. They are 6 to la inches long and coverd with downi hair, and have a Asagreeable odour resembling that of mice. The flower are niaU and lurid purple-red m color. The fruit consists of a broad I2^iS[' ^u,^.^\.'^* *T ^* •*<*« "^ «»y««d '^th »hor sptnes which enable it to adhere to clothing or to anitnals (Fi*. v6). Ar average pbmt produces about 600 seedsT^ v •• j / Time of flowering, Tune-August. IRme of seeding, July-September. Dispersal— Chiefly by animals carrying the burs. * A ^I^^S^ ?^ or cut deep in faU and early spring; the fonr.ci to datroy the plant Jn tts first year, and the Utter to complete the destruc- tion by removuig those that escape the first cutting. Pigeon Weed, Wheat Thief, Red Root, or Com Cromwell (Utho- sptrmwH arv0nse,U). A winter annual naturalized fran Europe, with reddish roots. It is usuaUy brapdied, and grows to a height of la in. - The leaves are sessUe. narrow, and harsh to fed. The flowers are small and white; at maturity, four smaU smooth seeds are produced, which have coositoable vitality. Time of flowering, from April to July. Tune of seeding, frwn June to August Diroersal—Mamly through seed grain, such as wheat, rye, timothy, and alsike clover; often spread by birds and distributed in the manure. BradicatioH. Drop fall wheat from the rotation. Cultivate lightly after harvest and cause the seeds to germinate. When three or four inches high, harrow or plow them under. If this treatment is repeated each fall, wheat can agam be grown. Flo. 36. Hound's 'i oncue, iCynogloisum oMcinalt.) THE nOWORT FAMILY {SCROPHVLARIACBAB). FJc.37. MuiASiir, OK VstvflT Dock. Vtrbatcwm tkapnu (L.). The mullein is a weed introduoed from Enrape; verr coamon in WMte piMM, roMlsides. and gravelly or sandy pastures. It is a biennial, with large, long roo^, from which spring a taU and unusually unbranched !^'^ *** 9 **^ **«"• °P^ •*«» "wJ ^f** »re densely woony all over. 4 u^'TS?*^ ^"- ^^ ''•^» "^^ ''Wtish, thick, and velvety to the touA. mtt flowers are vellow and arranged on densely crowded elon- gated spikes. The eaosule containing the seeds U about H in. long, and the seeds are sumU, sJwttt i-ao in. loi«, six-sided, with inegularridges ranmng lengthwise between the sides. flPhe color of the seed is dark brown. An average plant pi-oduces 6.000 seeds. Time of flowering, Jttly^S«>tember. Tune of seeding, August-November. Dispersal— As an impurity in ck)ver and grass seed. BradicatUm. Spud or cut below the crown ; or dig up the rooto when yomig; or break up the soil and grow hoed crops. It easily succumbs to cultivation. The Moth Mullein (Verbaseum blattaria) is a worse weed than conunon mullein, as it infests meadows and bears far more seed. The seed IS often found as an impurity in ctever and timothy. The plant Itself IS smooth and Render, from 2 to 6 feet high, with dentate leaves. The flower is yellow, with brown marks on the back of the petals: and the stamens have violet filam»- . The seed is brown, very small, and six-sided. ITreat it the sariie a:, cwnmon mullein. In Fig. 37 are shown the seeds of the mulleins— the upper seed is the common mullein, the lower is the moth mullein. IS Fia 37. Mullein. (y«rbascum Thapsut.) ••» . 100 . •' >' Fig. 38. Toad Flax, or Butteb and Eggs. Linaria vulgaris (Hill). iliis weed has become very plentiful in Ontario, and is now found in many pastures, on roadsides and in waste places. It is a deep-rooted, persistent, perennial weed. The stem is slender and erect, somewhat wiry, and from 13 to 18 in. high. The leaves are narrow, stalldess and scattered along the stem at very short intervals. The flowers are showy, distinctly two-lipped, about i in. long, bright yellow in color with orange lips and borne in a long- terminal dtister (raceme). The seeds are dark brown or black in color, about i>io in. in diameter, flat and disc-like, with a distinct wing around a thicker central portion which is roughoied with little projections. Time of flowering, June to September ; seeds ripe by August Dispersal — ^By seeds and rootstocks. Eradication. Adopt a short rotation of crops and jive thorough deep cultivation in spring and fall. Hand pull when the soil is wet in pasture lands which cannot be broken up. Break up badly infesteid pastures in July, keep under clean stunmer fallow until fall and put on a hoed crop the following season. lOI Fig. 3a Toad Plax, ob Bunn axd Eggs. (Linoria tmlgaris.) !M THE PLANTAIN FAMILY (PLANTAGINACBAB). Flc 39. Common Piantain. Plantago major (L.)- A weed of me«xlows and lawns,- the seeds of which are too often found in grass and clover seed. A perennial with a short, thick rootstock bearing numerous large, dark green, oval, l<»g-stalked leaves close to the ground. Flowers incon- spicaous, borne in long dense spikes. Seed pods oval, dividing about the ouddle and containing from 8 to 16 small, flat, irregularly-shaped brown seeds. BradicatUm. A short rotation including a hoed cic^ will keep this weed in check. *" Plantain in lawns may be weeded out when the soil to firm by tordn^ a small implement like a chisel, with a half-rounded blade having a pomt like the tip of a spoon, between the soil and the fleshy CTOwn of the weed to a depth sufficient to break the plant away f r«n its fibrous roots without disfiguring the turf." PAtB Pl^NTAIN, OK RuGEL's Pi,ANTAIN. Plantago rugelii (Dene). This Plantain is found as frequently as Common Plantain, from which It can be distinguished by the paler green leaves with the stalks dark purple at the base, the longer and more tapering spikes with the flowers less crowded, and the seed pods, which open below the middle and contain from 4 to 9 flat, irregularly-shaped black seeds, which are larger than the seeds of the Common Hantain. *"Fartn Weeds of CMada." by G. H. Qark, B.S.A. los CoifKON PLANTAOr. (Plantago major.) i Ss.- P 104 Fic 40. PtANTAIN, Bl,ACK PlANTAIN, RIB-CKA8S, OR RiB-WOST. PUmtago lanceolata (L.)- This plant was oact very generally believed to be a favorite food of cattle, yet the opinion of most agriculturists is against it It is considered a bad weed, especially when it appears in lawns. Numerous inquirers ask what it is, and how to get rid of it. It is a perennial or biennial, with a short thick root-st-vtk, of erect growth, or more generally lying oo the ground as a rosette of leaves. At the base of the leaves there are tufts of brown hair ; and the leavte themselves are lo^, narrow and tapering, with prominent veins, or ribs running lengthwise; hence some of the popular names. The flower-stock is slender and channelled, is without leaves and terminates in a dense spike. The stamens project from the mconspicuous flowers, giving a whitish appearance to the whole head The seeds are enclosed in small pods, each containing two seeds. The seeds are about 1-12 of an inch long, brown and shiny, with a groove on one side, in the centre of which there is a black spot. [The opposite side it rounded, as are also the ends. An average plant produces i,aoo seeds. Time of flowering, June-September. Time of seeding, July-September. Eradication. If the plants are not numerous, cut below the crown with a spud. If they are, break up the field and put in a hoed crop. 3d of lered lirers with Dthe tufts aing, F the thout 1 the bead. (The re on side eeds. pown Fig. 40. PlANIAW. (Plantago lanetolala.) io6 THE SUNFLOWER FAMILY (COMPOSITAB). Fto 41. Canada FttABAint, Hoiss Wcsd, ok Burnut Wno. Brigtron conadeusis (L.)> A tan, hairy plant, very commoQ in meadows. It is a winter annual. The stem is much branched, hairy, and may yaty from 3 inches to 10 feet in hei(^ flPhe leaves are downy, from x to 4 inches long. Ilie flower heads are numerous, about yi in. broad, with white flower rays. IChe seeds are small, light in color, and 1-16 in. long, with a pappus of short tufty hairs. An average plant produces iao,ooo seeds (Kemer). Time of flowering, June-Sq>tember. Time of seeding, June-September. Dispersal— Chiefly by the wind. BradkaHon. Having a small root, this weed can be easily pulled. Hence, where there is not very much of it, lumd-puUing is a satisfactory means of eradication. As a rule, the weed is troublesome only in mead- ows, and the frequent breaking up of meadow land tends to keep it under control. ^ Daisy Fleabane (Brgeron aunuus, L.) has larger and fewer flowers, }4 inch across. It is common in meadows and along roadsides from May to November. 107 Fia 41. (Xrigeron comaOeHtU.) lot Pic. 4a. GUUT RaGWXKD, OB KiNCWBXD. Ambrotia trifida (L.)- A weed in Western grain fields and in waste places in Ontario. A rough, coarse-growing annual weed from 3 to 6 feet high, with laree opposite leaves which are mostly three-lobed. The flowers are of two lands, the sterile borne on tapering spikes about 4 inches in length; the SMd-produang flowers grow close to the stem in clusters in the axils of the iMves at the base of the spikes; sterile flowers J4 inch across, cup- shaped,, noddmg; stamens yeltow and conspicuous. Seed-produdne flowers mconspicuous with slender purplish pistils. Time of flowering, July; seeds ripe by August. Dispersal— By seeds. Wheat from districts of the West often con- lams Great Ragweed seed. Eradication. Hand pulling and mowing. Fn. 43. C^XAT Ragwud. (Ambrosia trUUh.) tio Fig. 43. f Racwvcd, Hocwud, BiTfMWMD, tember. Time of ' eeding, August-November. Dispersal— As an impurity in seed grain; and by wind and water, being borne Icmg distances by freshets. BradicaHon. For the eradication of this weed, special attention must be given to the fall cultivatkm of the soil, to prevent seeds from ripening. Gang-plow or cultivate, and harrow stubble ground immediately after harvest, and repeat cultivation at intervals until late in the fall; then plow or rib up, and follow with a hoed crop. Care should be taken with the hoed crops that no specimens of Ragweed go to seed. AHien in grass, go over with a mower in September or October, if any plants are likely to mature seed. Do not sow late maturing crops. Ragweed when eaten by cows causes bitterness in milk. Ill Fte.43. Rao Wa iAmbrona arttmili*' lis F10.44. YtUOW DAIty, COMt-PLOWSS, BlACX-SYV) SVSAII, OK NlGCtBHSAD. Rmdheckia hbrta (L.). A biomial and tometiines annual weed found in pastures and mead- ows. It grows about i to 3 feet high. The stenu are maringly hrandied and very bristty. The leaves are tMck, hairy, oblong and tiering towards the point The flower is about i in. aoves, with orange y^ovr rays or petals (10 to ao in number) and daric purple brown discs afanost sptokal or cone-shaped, fllie seeds are dark brown, ahnost Uadc, firir angled, and about yi m. long, with no pappus, or tuft of hair. (Fig. 44)- An average fdant produces about a,ooo seeds. frime of flowering, Tune-August. Time of seeding. J[uiy-Scptember. Dbpenal— As an impurity in seed grain. Ufoikatien. It can generally be killed by mowing, but it is some- times necessary to break up meadow or pasture land, as suggested in note to Mr. Rennie's method of cleaning land, and follow with a hoed crop. If this is well cared for, it will destr<^ all Cone-flowers. Fro. 4* Con Funmu (Rudbekia kirta.) "4 Fig. 45- OxEYB Daisy, White Daisy, White Weed, or Poverty Weed. Chryxcnthemum Leucanthemum (L.)- The Oxeye Daisy is a weed naturalized from Europe, and is very closely related to the Chrysanthemum or national flowfer of Japan. It is a perennial with short, thick root-stodcs, possessed of much vitality. Very many stems spring from one root. It grows from 6 inches to 3 feet high. The leaves slightlv clasp the stem, the lower ones, narrow, long, and toothed along the edges, the upper ones, small and without teeth. They are slightly arcmiatic, more perceptibly so if bruised. The flowers are i to 2 inches broad, on long stalks, with from ao to 30 white rays and bright yellow disc. The seed is about 1-12 in. long and angled, with ahemate white and black longitudinal ribs. It has a short point but no pappus (Fig. 45). An average plant produces 7,500 seeds. {Time of flowering, June-August. Time of seeding, June-September. Dispersal— Chiefly in grass seeds and by birds. Eradication. The Daisy is moi^t troublesome in past\ires, and can be got rid of only by breaking up the sod. It can be eradicated by the method outlined for Canada Thistle, or by seeding down to clover and plow up after one crop has been cut and taken off. The clover sttuuld always be cut be 'ore the Oxeye Daisy has had a chance to mature seed. n Fig. 4S. OxiYE Daisy. iChry$aHthemufn Leucanthemwn.) at6 Fig. 46. G)MMOM Ragwort, Tansy Ragwort, or Staggerwort. Senecio Jacobaea (L.)> This plant has been sent to the Department on one or two occasions from the neighborhood of Guelph. It has probably been reported before as occurring in Ontario, since it is mentioned in the otticial list of the Toronto Educational Department Herbarium, but as it is not recorded, to our knowledge, in any other list, it is for all practical purposes a plant new to the Province. This is the weed which has caused so much trouble m the Eastern Provinces. It is a very dangerous weed because, when eaten by cattle, it causes a curious and fatal disease of the liver (Hepatica drrhosa). For this reason farmers should keep a sharp lookout for it, and destroy it whenever it appears. It is easily recognized, being a large, conspicuous, strong growing plant, about 2 to 3 feet high. (The flowers are in numer- ous heads in corymbose clusters, bright yellow in color and very showy. The root leaves are 6 to 8 inches long, petioled. Stem leaves sessile and clasping, all leaves dark green, deeply twice pinnatified, the segments crowded and overlapping, crisped and waved. This being a short-lived, shallow-rooted perennial it is not difficult to eradicate, all that is necessary being to cut it in time to prevent it from seeding for several successive years. "7 Fig. 46. Ragwort, Tansy Raow(«t ok Stagcekwoet. (Senecio Jacobaea L.) lit Fic, 47. LxssSK BusDOCK, BuK, CtoT-Bxnt, ob Bsggak's Button. Arctium mmus (Berah.). A biennial weed with tremendous roots, probably the largest of til weed roots. This root is uniform in size for a foot below the surface; further down it is much branched and has a great hold on the grotmd. iThe stem is much brandied (from 4 to 6 feet high) and rough, with broad rounded leaves, the lower surface of a lighter green than the upper. The flower heads occur in dustcs and are purple in color. The flower receptacle, or involurre, as it is called, is composed of hooked spines, yfiudi are very adb ve aad do much injury to the wool of sheep. 'Hw seeds are browr , ^ in. long and spotted witii darker brown (Fig. 47). Time of .lowering, July-September. (Time of seeding, August-October. Dispersal— Chiefly by animals carrying the seed from place to place. The plant when burned yields a good quality of alkaline ash, equal to the best potash; and a decoction from the roots is saiu to be equal to the juice of Sarsaparilla as a blood purifier, etc. Eradication. Cut below the crown with a spud and bum the tops. 119 m Fte.47. BUSDOCK. iArtHum mtiKr.) lao Fig. 48. Canada Tbistls, ob Cuxfing Thistuc drsium arvtnse (L.) (Scop.)* This weed was originally introduced from Europe, and hence incor- rectiy named Canada Thistle. It is a hardy perennial, with numerous underground stems whidi bear a large nundjier of shoots. (See Txg. 48, illustrating two of these shoots.) It grows to a height of i to 3 feet. The leaves are narrow and long, deeply indented into very prickly, lobed s^ments. The leaf has a criiiq>ed appearance, and at the base slightly clasps the stem. The under surface of the leaf is wodly, the upper sur- face less so. It produces numreous heads containing flowers, which are ^ to 9i{ inches across and of a lilac-purple color. {The flower is smaller than that of other thistles. {The seed is grey, oblong, and about X in. long, with slight longitudinal markings. Attached to the top is a con- spicuous tuft of long hairs (the pappus) (Fig. 48). The seed is carried long distances by the wind. An average plant produces 3,500 seeds. Time of flowering, June-August. Time of seeding, July-September. Many plants produce no seed. Dispersal — Chidly by the wind. Great care should be taken to prevent Canada Thistle from seeding. Eradication. The Canada Thistle can be eradicated in several ways, if thorough work is done at the right time : 1st. By careful and persistent spudding, done in such a way as to prevent the plant from developing top above the ground. 2nd. By early after-harvest cultivation of stubble ground. 3rd. By the frequent introductiering to a Utnt point, the oppotite end having a fringe of minute hun aronnd the crown. The body of the teed it corrugated. An arerage plant pro- duce! about 3,000 teedt. Time of flowering, July to October. Time of teeding, Auguit to October. Ditpertal — ^Frequently at an impurity in clover and grati teed. Bradication. Seldom troubletome in well cultivated fieldt. A ihort rotation of cnxM will toon caute it to ditappear. Badly infetted lieldi may be cleaned by deep, thorough, fall cultivation, f(dlowed by a hoed crop the next teaton. Basnaby's Thinlc. Ceniaurea soUMialis (L.). Thit plant it comparatively new to Ontario. Itt home it in the Medi- terranean region, but it hat been introduced into mott temperate climates with alfalfa, clover and other seeds. It has become scattered pretty well over Ontario at an impurity in alfalfa. It is a bushy-branched, annual weed from i to a feet high. The flowers are yellow and surrounded by contpicuout, ttout, yellow spines about three-fourths of an inch long. The lower leaves are divided, the upper linear entire and run along the stem at the base (decurrent). This plant being an annual and very con- spicuous is not likely to become a bad weed. Fig. 50. Fau. Dandsuon. Leontodon autumnalis (L.). An introduced perennial weed reported recently from several places in Ontario as occurring in hayfields. leaves mostly basal, springing from a short, thick rootstock and resembling somewhat the leaves of the Com- mon Dandelion. Stems branched, scaly and few flowered. " Flowers " about I inch across, bright yellow. Seed is % inch long, brown, linear, ribbed lengthwise and bears a row of feathery bristles about its own length. Time of flowering, July till frost ; seeds ripe by August. Dispersal — By seeds and by division of the crown. Eradication. *" Badly infested fields should be brought under cul- tivation. Pasture lands that cannot be cultivated may be improved by severely raking the surface with a spring-tooth harrow and sowing the most vigorous grasses." ♦"Fanii Weeds," by G. H. Qark. iss Fio. 50. Fall Dawdeuon. {Leontodon autumnalis.) Fio. 51. ^ JtuamiAL Sow TBinui. -^*§v Sotuhiu anftniit (L.). Thif it by all meuu the worst weed in the Province of Ontario at the present time. It is found in ahnost every county, and iqwn ahnott every farm. S-> rapidfy and so penistenUy U it spreading that in some parts of the Province it threatens to entirely over-run the nelds and drive out the farmer. In spite, however, of its wide dispersal there are many who are not ablie to recognize this pest and who mistake it for its two coc Mratively harmless coushis, the Common Annual Sow Thistle and the hjpiay Annual Sow Thistle. This should not be the case, as it is a very coospicuous weed, and differs markedly from the other two species. The Permnial Sow Thistle grows freely on a great variety of soils, but is etpedalhr troabksMne on rich, low, damp land. It appears the first year in a field in scattered patches consisting of young plant \ each plant made up of a rosette of leaves lying close to the ground, and thus, when numerous, they completely cover it. These ^oung plants have but short undenround root stocks, and are comparatively easy to destrcqr. The second year a large stem bearing numerous leaves and flowers is pro- duced and the roototocks grow long and send up Quantities of new shoots. Once esUblished in this manner, it is no easy task to destroy this pest. Descriptum—Tht Perennial Sow Thistle (Sonchtu arvttuis) is a tall, coarse growing perennial weed with deep roots and numerous thick, underground stems or rootstocks, commonly spoken of as " roots." Upon these at intervals of a few inches are borne buds which develop into new pbmts. The stem is smooth and hollow and the whole plam ^^ filled with a bitter milky juice. The leaves are pointed, 4 to la inches long, deeply cut with the segments pointed backwards (runcinate), slightly prickly. The flowers, or more correctly speaking, the heads of flowers, are about I to i^ inches across, and bright orange in color. The involucre, or, as it is commonly called, the flower cup, and the peduncles or flower stems are covered with distinct, yellow glandular bristles. The seeds are dark reddish-brown in color, about ^ of an inch long, somewhat spindle shaped with bltmt ends, and each surface bears a mmiber of very deeply wrinkled, longitudinal rilw. Each seed bears at the top a tuft of white silky hairs (pappus) which, when dry, acts as a parachute and enables the seed to be borne long distances by the wind. Points o? Distinction Between the Perenniai, Sow 'Bhisti.e and the Anntjai, Sow Thistles. I. The Perennial Sow fThistle is a taller, coarser growing plant than either of the other two Sow Thistles. a. The Perennial Sow Thistle has numerous imderground rootstocks while the annual species have only fibrous roots. (See illustrations.) ^m. $1. PnnNiAL Sow Thutu. (Sonektu arvetuu.) 138 3- The leaves of the Common Annual Sow Thistle are deeply cut and lobed and scarcely spiny. The leaves of the Spiny Annual Sow Thistle are aUnost entire, very prickly and often decidedly waxy, ffhe leaves of the Perennial Sow Thistle are deeply cut, but not lobed, and slightly priddy. (See illustrations.) 4. The " flowers " of the Perennial are bright orange in color and about lyi inches across, while the flowers of the Annuals are pale yellow and less than yi inch in diameter. 5. The " flowercups " (involucres) and " flower stems " (peduncles) of the Perennial Sow Thistle are conspicuously covered with yellow glan- dular bristles, while those of the annual species are nearly smooth. 6. The seeds of the three species also differ as to shape an marldngs. How THB Pesenniai, Sow THisTtE IS Sfkeao. The Perennial Sow Thistle is being rapidly and widely spread by means of its numerous seeds, which are blown far and wide by the wind, and to some extent by its abundant underground rootstocks which with remarkable rapidity spread through a field, sending up new shoots which soon entirely cover the ground and choke out all other vegetation. The rootstocks when broken up are often carried from field to field by harrow or cultivator. It has been esthnated that an average plant produces 2,000 seeds. There are thousands of these plants going to seed on n^lected farms, on road sides and in fence comers. Many more mature plants are harvested with the grain and their millions of seeds scattered at threshing times. Is it to be wondered that the Perennial Sow Thistle is becoming such a serious pest in Ontario? Methods of Eradication. These are discussed under the headings of General Suggestions and Detailed Methods. General Suggestions. 1. Bear in mind that a few patches of Perennial Sow Thistle, if allowed to mature, may seed down a whole neighborhood. Therefore, take every precaution to prevent the seeding of patches in meadows, grain fields, fence corners, and on the road side. , , , 2. Watch for the first two or three patches in the field and destroy them before the pest becomes established. 3. Be careful not to harrow or cultivate through patches and drag the underground rootstocks all over the field. 4. The Perennial Sow Thistle thrives most luxuriantly on rather low, damp land. Underdraining therefore will help to control it. 5 Sheep are fond of this weed, and, if turned on a field after har- vest, will prevent its seeding and by their close cropping weaken the underground rootstocks. ill Ft& 53. Smnr AmrvAL Sow Thimul {Sonekm atptr.) id 130 DSTAIUOD MXTHODS. Seven} methods of extemunating the Perennial Sow Thistle are here outlined in detail. (They have all been suggested by practical farm- ers. It is hoped that those who are looking for information on this sub- jcte will find among them a method suited to their own conditions. Method No. i. This method is suggested by Professor Zavitz, who found it eflFective in the eradication of Quack Grass. Cultivate the field until about the middle of June, ri'xming over it frequently with the culti- vator so as to keep the tops down and thus weaken the " roots." Then apply manure at the rate of about 20 tons per acre (12 good loads). Cul- tivate the manure in thoroughly and -with a double mould board plow slightly ridge up the land, making the ridges about 26 inches apart. On the ridges sow pasture rape at the rate of i^ lbs. per acre. It is important that the right amount of rape should be sown, for if too little is sown the stand will not be thick enough to smother the weeds, and if on the other hand too much is sown the plants will be too crowded and not grow vigorously enough to keep ahead of the thistle. Sow the rape when the land is sufficiently moist to insure quick germination of the seed. If the rape is slow in starting the Sow Thistle may get a start in the rows and thus necessitate hand cultivation there. Cultivate the rape every week or ten days until it occupies all the ground and makes further cultivation impossible. If, when the rape is cut or pastured, any Sow Thistles remain, the field should be ridg^ up the last thing in the fall and put in with a hoed crop the following year. This should not be necessary if a good stand of rape is secured. Method No. 2. This is a syste n of intensive cropping suggested by Professor Zavitz. As soon as a cereal crop is harvested, plow the land and give frequent cultivation to the first or middle of September. Then sow winter rye at the rate of about two bushels per acre. This can be pas- tured the following spring, or cut for hay or grain. As soon as the crop is off the land, put in rape, turnips or buckwheat. IThe advantage of this system is that three crops are harvested in two years and the Sow Thistle fought at the same time. Method No. 3. This method is recommended by Professor Day. Immediately after harvest gang-plow shallow and run over the field sev- eral times with the broad shared cultivator. Later in the fall plow a little deeper, •'nd continue cultivating every week or ten days as long as the season r nits. Last thing before the ground freezes rib up the land with a dc .; mould board plow. The following spring give frequent cultivation up to the first of July, then sow pasture rape. Method No. 4. This is a short rotation which has been recommended by several Farmers' Institute workers. Qover is followed by a crop of grain, then clover again. The clover is cut in June, and the land plowed about four inches deep and given frequent and thorough cultivation dur- ing the rest of the summer. The following spring a grain crop is sown, seeding down with clover. For best results the grain crop should be one which can be cut early enough to prevent the thistle from seeding. ^^^^^^^nggn 131 Fro S3. Aknital Sow Thistle. (Sonchus oltraceus.) i3» . Method No. 5. Directly after harvest plow the land J|f **/»„*»<* then give frequent cukivaticm as long as the seascm permits. The follow- ing spring gang-plow, and leave in summer fallow until it is tune to sow fall wheat. Tht summer fallow to he effective must he a borefaUow. JThe field must be cultivated thoroughly and frequently, with the object of keeping the tops 6cim and breaking up and brim^ to the surface of the ground as many of the " roots '^as possible. The gang-plow s^d occasi(»udly be run over the field in order to insure the cutting of the roots. Bart, summer faUow has given excellent results on Ae Couege farm in seasons when other methods were at best only partially effective. Fig 53. Annual Sow Thistls, Common Sow TnisTut, or Max Thistw. Sonchus oleraceus (L.). An annual weed introduced from Europe. It grows a to 3 feet high, has fibrous roots and leafy stem, and is not quite so large or coarse as tile Perennial Sow Thistle. The leaves are much lobed, and have short, soft spines. Eadi head is many-flowered; but die flowers are small, about ij4 in. across, and of a pale yellow color. The seeds are brown, dull or roughened, and about }i in. long, .with 5 longitudinal ridps finely wrinkled crosswise, and attached to the top is a large tuft of fine hairs united at the base. Time of flowering, June- August. 5rime of seeding, July-August. Dispersal— Qiiefly by the wind. pradiration. Cultivate stubble-ground and sod early after harvest and thru ^out the fall as for Canada Thistle (see Fig. 53). Follow with hoed crop, preferably com or roots, and cultivate thoroughly throughout the growing season. Use the cultivator, instead of tiie plow, after roots or com; sow a crop of grain and seed with clover; if practicable, pull the weeds by hand out of the grain crop ; take one or two crops of hay or pasuure, and again break up the sod, plowing, harrowing and cultivat- ing as for Thistle. Fig. 54. « PwcKtY hvnvct. LactMca Scariola (L.). Prickly Lettuce is a native of the dd world, and has invaded this Province both frcan New York and Michigan. It is a winter annual; it springs from seeds in the fall, and surv?w8 the winter. The plant grows to a height of 354 feet; the stem is leafy and usually smooth; the leaves Fhs. S4. Pbickl'' Lettuce. (Laetuea teoriola.) 134 are (^ong aad sU^tly pointed, often cUspiiu; at the base; tiie under lurface of the miuib of the leaf is spiny: Heads are numerous and yeUow. ♦ Time of flowering, July-Smtember. Time of seeding, August-October. Dispersal — By means of its seeds, which are provided with a pappus or tuft. An ordinary plant may produce 8,000 seeds. Bradieation. The best methods of destroying the weeds are: i. To mow repeatedly as it comes into bloom, or earlier. 2. To cultivate thor- oug^y with a hoed crop. By this method the weeds in the sdl wiU^ be induced to germinate. (Chey should not be covere<* deeply in plowii^. Mature plants should be cut down and burned lest the seeds be blown about aiMl scattered by the wind. Farmers should be careful to buy only clean clover, millet and grass seeds, and Hbt weed inspector should insist on the fulfilment of the law, and have all fence-comers, roadsides, and waste lands cleared of the pest Fig. 55. Wm) Lettuce, Southekn Thistle, or Trumpst-mii.kwesd. (Erroneously called Prickly Lettuce.) Lactuca Canadensis (L.). An annual or biennial plant with a leafy stem, which may attain a height oi seven feet. The leaves are deeply lobed, terminating in an acute point, amd have stalks or petioles, the lower ones being smaller than those near the top of the stem. The stem branches at its sunmilt into a compound flower-cluster. The flowers are small, yellow in color, and open only a few at a time. The seed is dark brown in color, flat and oval, with longitudinal ribs and a threadlike beak at the apex, and pos- sesses a small white tuft of hair. Time of flowering, June-October. Time of seeding, July-October. Dispersal — Chiefly by the wind. Eradication. Where there is not much of it, pull and bum before ripening. Where this cannot be done, use the same method as for Mustai^. Mm MMI iMHUiiii iH ■ii Fig. 55. Wiu) Leituci. (.Lactua Canadensis.) 136 Flo. 56. PAxmr BivtB, Dtvit't Paint Bxvsb, ok C)kan<» Hawk Wna Hitraemm tturtuUiacwm (L.). Vus is anodier weed which is gaining ground in Ontario. It has been conimon for some time in the eastern put of the Province, but is now r^rted as being fomid as far west as Oxford County. It has been found m the vidnity of Gnelph iean origin, and produces slender run- ners, whidi lie near the surface of the soil. The leaves are all basal, and lie dose to the ground, forming a rosette. Thqr are broadly lance-shaped, from a to 6 inches in length, the " flower " is orange red in color, wout ^ of an inch in diameter, and borne in dusters on the top of a simple, nearly leafless stem from la to 18 inches high. The seeds are provided with tufts of down. When found in dover seed, however, the down is usually absent They are torpedo shaped, about 1-12 of an inch long, and ribbed lengthwise. Ripe seeds are dull jet black in color, unripe seeds deep red. Bradication. Paint Brush is but a shallow-rooted perennial, and readily succunrii>s to cultivation. Infested meadows and pastures should be broken up and put under a short rotation of crops. Salt at the rate of lyi tons per acre is recommoided for tiie destruction of this weed. It should be scattered over the patches so as to fall on the leaves. It is daimed that it destroys the Paint Brush and improves the graisi. w FBI. si Paint Bbuih. {Sieraoium aurammeim, !<.). Li i3i KNOW THE WEEDS. It it rtry iiiq>ortant that those engaged in farming thould get to loam the worn weeds and the weed seeds most frequently f oond hi oom- nerdal seeds. This thqr can do with a little troaUe. Strange weeds should be sent to the Botanical Department here for identification, and a cdlectile, as snake fences, 199 dhould be sot rid of M loon m pouiUe. On the Onurio Experimental turn nearly aU field fences have been removed. The outtide and lane fences are almost fhe only ones left. Portable fences are used when required for pasturing live stock. Annual and BitnniaU. Wild oats, wild mustard seed, and some other «eeds beloMing to these classes, have great vitality. If down pretty well beprond the reach o* the air. they will live for twenty years. n^ femunate as soon as they are brought near tiie surface. The best way to destroy annuals and biennials is by thorourii and frequent shaUow cultivation early after harvest in stubble ground and m sod plowed for the following year, and at the proper season (sprinff and summer) among what are called " hoed crops,''that is. potatoes carrots, tumms, mangels. Indian com, etc. By shallow cultivation the seeds are kept near the surface, and by frequent stirring of tiie soil they are made to sprout; and, having sprouted, they can be killed by " further cultivation. Those which sprout late in tiie fall are destroyed by the wmter frost. It is impossible to get rid of such weeds by plow- ing the ordinary depth, say seven or eight inches, once in tiie fall or at any other time. Plow shallow (not more tiian four inches in sod and three inches m stubble ground), and barrow and cultivate frequentiy as by each stirring of the soil fresh seed is made to sprout, and what has already sprouted is destroyed. When necessary to kwsen the soil to a greater depUi. use a grubber or a subsoil plow. Perennials. It is necessary to study tiie habits of perennial weeds to see how tiiey grow and propagate themselves from year to year in order to keep tiiem in check; and a close examination of almost any of them will show that the buds from which the young plants start are near the surface of the soil. Hence shallow cultivation, similar to that mentioned above, is the effective method of destroying them. Disc harrows cut tiie shallow, creeping roots into fragments, which bud and greatly increase the difficulty of eradication. Deep pfowing only trans- plants tiie buds to a greater depth, and increases the trouble. Plow shallow (see preceding paragraph), and harrow and cultivate frequently using a grubber or subsoil plow when it is necessary to stir the soil to a greater depth. As above, the cultivation must be early after harvest and throughout the fall in stubble ground and sod, and in spring and summer among com, potatoes and root crops. Ill-timed, irregular or partial cultivation only makes all weeds grow more vigorously. Canada thistle, perennial sow thistle, couch-grass, bindweed etc can be destroyed by the following method : Middle of May gang' plow the land about three inches deep and harrow thoroughly. In two weeks, when the weeds are nicely up, cultivate with a common or sprinir- tooth cultivator provided witii wide points that overlap so as to cut off every plant two or three inches below the surface. Then harrow to pull up the plants and leave them to die. In the middle of June there X4B win bt tiiollwr crop, and posnbty a groMr munber of plaiito. bat aoC w viforoas m the fint crop. ReoMt the opcratkm with the wide ■oiat cttltintfor and the harrow. In July a few deheate planu win make their appMrance aad wOl hare to be dettrogred in the mum way. TUt wUl be sdieieBt tor rmi weeds; bat bindweed may need one or two extra enttii«» with the wide poinU, and a oorreipondhic number of harrowingt. The preceding method will dean the land, bat it involves the loss of a years ctvpi so it is weU to add that land may be kei^ compant- tively free from weeds without the loss of a crop, by after-harvest culti- vation of all fields not in grass, begun with each field fust oi soon as tht erof is o§ and cratinned throo^out the fall, first ^ shallow gang- fdowing and harrowing, and afterwards at intervals, as above, by the wide^wint cultivator ami the harrow. This treatment fdlowed by a hoed cn^ profsrly^ oHsndsd to will destroy most perennial weeds and all annual aod biomial seeds that are near the surface. Nott. To Mr. Rennie's method, or methods, as above given, we would venture to add one which we have seen carried out with the most satisfactory resulU by Mr. Rennie on the College farm, and with marlced success by farmers in other parts of the Province. It may be put in the imperative form, as follows: Sow much with red clover, in order to have a rich clover sod to plow down for all or nearly all spring crops, taking as far as possiUe oiUy one crop of hay or pa^ure before pbw- ing, occasionally two, but not more Aan two. Plow the ch>ver sod shaUow, not more than four inches, early after harvest, ny the ist to the 15th of August, and harrow at once. Let it stand a couple of weeks; then cultivate, the same way as it was ptowed, two or three Inches deep, with a spring-tooth cultivator. After a while, cross cul- tivate a little deeper. If possible, cultivate a third, or even a fourth time, going a little deeper each time. Then, if you manage to do so, rib it up with a double mouldlxard plow, as you would for a crop of turnips. When this is done the available plant food (clover roots, etc.) is preserved in the centre of the drills, the water runs oflF early in the spring, and the drills can be levelled with the cultivator and harrow, either for spring grain or for hoed crops. This method will not only clean land, but will greatly enrich it. Mllllll 141 AN ACT TO PRBVBNT TNB SPRBAD OP NOXIOUS WBBM. PrsvteM of Oataria 1. Wkm mat ta tliis Act tkt twm "BOMvsMMit taad" iball nvtUr to tU ii^;ri|«lttr, tad th« tens "rtMMt laa^i" thall anly to all Iu4i whieh ara ••"S*^ 2^.*"* •*• •^** *«^ P«WM rmUtnt wltkta th* oiaBktpaUty. u L» ■k>l> te^tkt ««tjr of trtiT oeowaat of Uud. or, If tho laad »• aaoee«pk4, K nan to t&o dotr of ttt owB«r, to eat dowa aad dootroy all Oaaada t^Mw. osMTo dalv, wild 0^ rafWMd aad tovrdoek growlac oa hli laad. aad aU othor anleno wo^a growtaff m hia load to wkleb thia i«t majr ba Mtaadad by by4aw of tba moBldpallty, ao oftaa aaeb aad trory yaar aa la aofloloat to pronat tbo ripmtaff of ttolr aaod. prarkM tbat aoeb evtUat or daatraetloa doaa aet lavtiTo tba daatraetloa of tbo growlac fimla. 1^(1) Tba eeoadl of any elty, tewa, tewariilp or laeorporated Tllteca laay, by bHaw. Mctaad tbo oporatloa of tbia Aet to aay etbw wood or waada, or to aay a^ diaaaaa of grala or frnlt troMi or frolt (otbor tbaa tbo diaeaaaa kamra aa "yfllowa" aad -Maek kaot " In fralt troaa). wbleb tboy declare to bo aoslona ^^^'i^^"^^ laideBla* la tbe nnalelpallty; aad all tba vrorlatona of tbIa Afct aball apply to aneb aozloua weada and diaeaaia aa If tbo aame were barala aanaierated. (t) 8ueb eocadl may aad. npon a petlUon of fifty or mora ratepayen, aball appoint at leaat oao lawaetor to enforce tbe prorlaiona of tbla Act in tbe Mnnl- elpallty, and fix tba amount -seetlon the road ooimmlssioaw msgr perform the work in place of sucb owner or occupant, and the cost thereof to tlie extent of |1.X5 for eadi day's labor Involved ahall be recoverable aa a debt due by such owner or occupant to the road commissioners in any court of omnpetent Jnrlsdlctioa. 9.— (1) Any owner or occupant read tberaef, shaU upon convictl^m, be liable to a fine of not less than $6 uor more than ISO f«r every such offai oe. (1) Any persm who knowintflr mUs or offws to sell any grass, dovsr or other seed, or any seed grain among which there is seed of Canada thlatlSB, 143 • iao of not more Uinnm «»«■•. "AaU, apos ooiiTleUoB, be U«bl« to coBTlotfcm Won any * » of^. o«ol. .J[f!n 2? "^ '•^•*' <*■ •««»aM«T INDEX Ball Mustard, 70, 71. Bamaby'i TliiaUe. lz». Barnyard Oran. U, IS. 84. Bastard Oreaa. «0. Beggar'a Button, 118. Btodweed. 18, 19. 80. M. 189. Blrd'a Neat. 88. Bltterweed. 110. Blac* Bindnreed. 14, 86. 40. Black Plantain, 104. Black Medl4^ 84, 86. Bladder Campion. 18. 19, 62. 63. Bladder Weed. 68. Bine Bur. 94. Blue Devil, 94. Blue Thlatle. 94. Mue Weed, 80. 81. 94. 96. Borage nunlly, 94. Buckwheat Tamily. 86. Burs. 96, 118. Burdock, 80, 81. 118. 119. Butter and Xggs. 100, 101. Buttercup Vamily, 58. Butter Weed. 106. Canada Fleabane. 106. 107. ^nada ThIsUe. 80, 81, 180. 181, 189. Charlock, 74. Chess. 16, 17, 28, 89. Chicory. 80, 81, 188, 184. Ohlekweed, 84, 86. ClnqoetoU, 84. 85. 88, 88, 84. Clot4>ur, 118. Coekspur Orass, 84. Gone Wofwer. 84. 86, 118, 118. Com Campion, 60. Com Coekle. 16, 17, 60. 61. Cora Oromwell, 96. Cora Bpurrey, 48. 49. S^bSHS. "• "• "• »»• "»■ Cow cockle. 64. Cow Cress. 64. Cow Herb. 64. OnOt Graaa. 84. Creeping Thistle. 180. SiT'** S^' "• "• w. «7. Dudelion, U. 88, 124, 186. DerU's Got, 98. Derll's Plague, 88. DerU's^Palnt Brush. 186. Dock. 86. Dodder. 1849, 98. 98. Dog Bur. 96. Bradlcatlon of Weeds, 7, 188. Bjenlng Primrose, 84. 86, 84. 86. JJ'ilf 5«. 18, 19, 68. 69. Weld Peppergrass. 64. Wgwort Family. 98. ^nger Graaa. 84. Fleabans. 18, 18. »