Historic, archived document Do not assume content reflects current scientific knowledge, policies, or practices. 21 ht remem hatin VOL. 25 NOS. 49-52 December 1975 Cooperative EConomic Insect Report Issued by PLANT PROTECTION AND QUARANTINE PROGRAMS ANIMAL AND PLANT HEALTH INSPECTION SERVICE U.S.DEPARTMENT OF AGRICULTURE ANIMAL AND PLANT HEALTH INSPECTION SERVICE PLANT PROTECTION AND QUARANTINE PROGRAMS NEW PEST DETECTION AND SURVEY STAFF The Cooperative Economic Insect Report is issued weekly as a service to American Agriculture. Its contents are compiled from information supplied by cooperating State, Federal, and industrial entomologists and other agricultural workers. In releasing this material the Service serves as a Clearing house and does not assume responsibility for ac- curacy of the material. All reports and inquiries pertaining to this release, including the mailing list, should be sent to: CEIR New Pest Detection and Survey Staff Plant Protection and Quarantine Programs Animal and Plant Health Inspection Service United States Department of Agriculture Federal Center Building Hyattsville, Maryland 20782 Volume 25 December 19, 1975 Numbers 49-52 COOPERATIVE ECONOMIC INSECT REPORT HIGHLIGHTS Current Conditions GREENBUG very severe on some small grains in Texas, Oklahoma, and Kansas. (pp. 895-896). Detection Earlier collection of a SIRICID WASP in Georgia predates find in Alabama. (p. 899). New State Records include a SIRICID WASP (p. 899) and an ANT ioe JOS) 10. Plorida.. For new county records, see page 902. Special Reports Dryocosmus kuriphilus Yasumatsu, (Hymenoptera: Cynipidae), An Oriental Chestnut Gall Wasp in North America. (pp. 903-905). First Report of Pheidole moerens in Florida (Hymenoptera: Formicidae). (p. 906). The Use of Bait Traps for Assessment of Stored Product Insect Populations. (pp. 907-909). The Author of the Scientific Name of the Cabbage Maggot. (p. 910). Spider Mites (Tetranychidae: Acarina) from Southeast Asia and Japan. (pp. 911-921). Imported Fire Ant Quarantines. Map. Centerfold. Reports in this issue are for the weeks ending November 21 through December 19 unless otherwise indicated. - 893 - CONTENTS Special, insects, of) Resaionals Sateaibied CamC@ie eset rent ent eee eae ee 895 Insects Affecting Corn; Sorghum. .Ssusarcanen. -o9Ge soma ll Pr UaktSi oy o-an = eeeleuseenens 898 Smad (Graaitsey 5. esters oan 896" -Ornamen CAlSae wate: cee 898 Forage WLesumes. 2.2. hen 14565, /Gainesvaidsle. (rinevs 2604. 2/ Department of Entomology and Nematology, University of Florida, Gainesville, FL 32611. U.S. Dept. Agr. Coop: Econ) ins 2kpt. 25(49-52):906, 1975 = 906 — The Use of Bait Traps for Assessment of Stored-Product Insect Populations D. Be Pinnager: 1/ An assessment technique useful for both evaluation of insecticidal disinfestation treatments and for monitoring population levels has been developed at PICL (Pest Infestation Control Laboratory at Slough). Residual populations of beetles may be composed of individuals or small groups of insects in cracks, crevices, and other dead Spaces. At any given time most insects are inactive and remain hidden, but a small percentage are actively wandering over the exposed fabric of the building. When heavy infestations occur, the proportion of wandering insects is obvious but with light infesta- tions the very few active beetles are difficult to detect by visual inspection. The aim of a bait technique is to insert a standard trap into the environment which will arrest the movement of these wandering insects and perhaps attract other insects from harbourages. Insects present in the trap can then be counted and results compared with data from other traps and trap periods. Other workers have used gunny trap bags for infestation surveys in stored product environments (Green and Coauthors, 1953; Strong, 1970; and McFarlane and Warui, 1973). The bait trap adopted by PICL is a welded plastic mesh* container with 1.5 mm. apertures, heat sealed on three sides to form an envelope 20 cm. x 10 cm, Thesenvetope 1s “then filled with 130) ml. (85¢.)) of food material and closed with staples. Various food materials have been tested, the most successful being a mixture of equal parts of wheat, broken groundnuts, and kibbled carobs (locust beans). All food mixture is sterilised at 70 degrees C. for 8 hours before use to kill any stray live insects. The bait traps are labelled, placed around the storage area being surveyed, and left in position for a known period of time (2-7 days). They are then examined by shaking the bait trap vigorously over a white tray. Any insects present, fall through the mesh, which acts aS a Sieve, and on to the tray where they can be COUCH Stott ts NOt practteables vo count on site; sthe’ imsects may be collected in a tube, or the baits can be placed in sealed ‘ polyethylene bags and examined later. *Mesh Ref. Code 032 supplied by Netlon Ltd., N.E. Wing Bush House Aldwych, London WC2B 4PX 17 Pest Infestation Control Laboratory, Ministry of Agriculture, ~ Fisheries and Food, Slough, Berks, England. — DO Traps have been successfully used in farms, mills, and warehouses in wall/floor angles and corners, dead spaces under machinery and behind bulkheads, elevator pits, and conveyor tunnels. Infestation outside storage premises has been detected by placing bait traps under a waterproof cover in the open. Infestations in ships have been detected in deck/bulkhead angles, bilges, box beams, ledges, behind shifting boards, and under dunnage. In many cases insects have been detected in bait traps when they have not been found during normal inspection. Temperature is an important influence on the activity of insects and higher catches have been obtained in the United Kingdom when temperatures have been above 15 degrees C. The absence of an alternative food supply greatly increases the effectiveness of bait traps and they are most effective in empty buildings, etc. However, insects can be detected in the vicinity of foodstuffs, for example around stacks of bagged goods. Although primarily developed for detecting Oryzaephilus Surinamensis, a wide range of beetle species has been found in Dale traps Glabiliegsls). Table 1.--Beetle Species found in bait traps. Species Ships Farms Other Maximum Premises number per bait trap Ahasverus advena - - ~ 10 Attagenus sp. + ~ - 14 Cryptolestes sp. + + + 5 Dermestes sp. 4 - - 3 Gibbium psylloides + - ~ 7 Lasioderma serricorne + - ~ 20 Necrobia rufipes + - - 3 Oryzaephilus sSurinamensis + - + 20,000 Oryzaephilus mercator + ~ - 100 Palorus ratzeburg1 - - + 50 Ptinus fur - + - 1 Ptinus tectus - + ) Sitophilus granarius + + + 50 Sitophilus oryzae + ~ - 3 Stegobium paniceum + - - 6 Tribolium castaneum + ~ - 200 Tribolium confusum - ~ + WZ, Trogoderma granarium - ~ + 30 Typhaea stercorea + + + 20 - 908 - Moth larvae of the following species have also been found in bait traps: Ephestia elutella, E. cautella, Corcyra cephalonica, Endrosis sSarcitrella. = The larvae are difficult to dislodge by the normal shaking technique and bait traps should therefore be emptied and the contents sieved. Bait traps used for monitoring O. Surinamensis in farm granaries have sometimes contained large numbers of mites including Acarus siro and Glycyphagus destructor. The technique is therefore useful: 1. AS an additional inspection tool to determine the presence of a particular pest species in a storage situation. (The present bait trap material was designed for detection of O. Surinamensis and could be modified to detect other Species, for example pulses for bruchids.) 2. To determine the range and relative levels of pest species present in different parts of an environment.or at different times of the year. 3. To assess the effectiveness of insecticidal treatments and other control programmes both quantitatively and qualitatively. 4. For collection of insects, for example, for resistance testanes (Dy te et al. W975). Laboratory and field investigations are being continued, including the monitoring of infestations in holds of ships during transit from the tropics to the United Kingdom. Further work is being carried out to determine the efficiency and consistency of bait trap catches in relation to population density, environmental conditions, trap exposure time, and bait trap attractiveness. Acknowledgements I should like to thank K.B. Wildey and J.A. Hope, PICL Slough, and the regvonal staff of the Infestation Control Division for their help in distribution, collection, and examination of bait traps. References Dyuere CL anda Coauthors. —LO7/s 7 -some Consequences of» the development of insecticide resistance in stored product imseers. Proc. lst Int. Conti es tored Product Ent. Savannah 1975. Green, A.A. and Coauthors. 1953. Pest Infestation Research. p. 21. McFarlane, J.A. and Warui, C. 1973. A simple technique for stored product infestation surveys. Trop. Stored Prod. Inf. 24: 17-24, Strong, R.G. 1970. Distribution and relative abundance of stored products insects in California. A method of obtaining sample populations. J. Econ. Ent. 63(2):591-596. Nes Dept Noi. COOp., BCon., Ins... Rpt. -25(49—52) : 907-9095, V975 3 WON) = The Author of the Scientific Name of the Cabbage Maggot G.C. Steyskal 1 The common pest known for a long time as Hylemya brassicae (Bouché) has been shown by Hennig (1974, Die Fliegen der palaearktischen Region, fam. 63a (fig. 36):751) to have been described, fortunately under the same name, by Wiedemann in 1817 (as Anthomyia brassicae, Zool. Mag. 1:78). This name is shown by Hennig to have been carried erroneously for a long time as a synonym of Hylemya radicum (Linnaeus). Hennig cites the name as by "Hoffmannsegg apud Wiedemann," but according to the International Code of Zoological Nomenclature, because the description was by Wiedemann rather than by Hoffmannsegg, the name should be credited to Wiedemann. The proper name of the cabbage maggot is therefore Hylemya (Delia) brassicae (Wiedemann) if it is desired to indicate the subgenus name, or otherwise Hylemya brassicae (Wiedemann). To those, few in this country, who consider Delia to be of full generic rank, the name would be Delia brassicae (Wiedemann). 1/ Systematic Entomology Laboratory, IIBIII, ARS, USDA, Mail ~ Address: c/o U.S. National Museum, Washington, D.C. 20560. U.S. Depta Agr: Coop =sEcon: InsS Rpt: 25(49-52):910, 1975 - 910 - Spider Mites (Tetranychidae: Acarina) from Southeast ASia and Japan E.W. Baker iy I have recently spent three months in Thailand studying the tetranychid mites as a consultant for FAO. Because many tetranychids from Southeast Asia and Japan are widely distributed, it has been critical to compile a list of Species known to occur in this region before starting studies on the spider mites of Thailand. Much of the previously published data given here has been taken from the works of Shozo Ehara, Tottori University, Japan. Other important studies are by D.C.M. Manson, L.C. Rimando, and P.K-C. Lo. Several of the mites native to Southeast Asia and Japan are now found in many parts of the world, including the United States, and are considered to be serious pests. Because most of the spider mites of Thailand appear to cause Serious damage to their hosts, any accidental introduction of these species into the United States could potentially have serious consequences. Therefore, it seems desirable to present the following list with information on hosts and pertinent references as an aid for quarantine related identifications and as a foundation for future work on the tetranychid fauna of Southeast Asia and Japan. Ninety species of spider mites are recorded from the above areas. Sixty-four of these are not known to be established in the United States, and 61 are not known from Thailand. The host lists include many plants that are currently cultivated in the United States. Bryobia Koch, 1836 *Bryobia eharai Pritchard and Keifer, 1958 Japan, Taiwan Chrysanthemum *Bryobia japonica Ehara and Yamada, 1968 Japan Wildrose Bryobia praetiosa Koch, 1836 Japan, Taiwan Apple, Campanula medium, clover, grass, Iris, pear, Sphenoclea seylanica, strawberry Tetranychina Banks, 1917 Tetranychina harti (Ewing) Japan, Taiwan Oxalis *Mites not yet known in the United States ay, Systematic Entomology Laboratory, IIBIII, ARS, USDA, Beltsville, MD 20705 = Oia — Petrobray Murray. Voc Petrobia latens (Muller, 1776) Japan Allium, grass, strawberry Tetranycopsis Canestrini, 1889 *Tetranycopsis borealis Ehara and Mori, 1969 Japan Rubus chamaemorus, R. parvifolius Eutetranychus Banks, 1917 *Eutetranychus africanus (Tucker), 1926 Burma Cir trus *Eutetranychus orientalis (Klein, 1936) Japan, Taiwan, Hong Kong, Thailand, Philippines Annona, Artocarpus integra, Bauhinia purpurea, Calotropis sFiganteas icaricaspapayanmcassias "Citrus Crovtons = DUTT O Zibethinus, Euphorbia, frangipani, Gliricidia, grapes, grass, Hedera japonica, Jatropha multifida, Teguminous tree, Manihot, Menispermaceae, Muntingia calabura, Murraya paniculata, Musa sapientum, Nerium indicun, Pachira macrocarpa, peach, Persea americana, Psophocarpus tetragonolobus, PterocarpuS macrocarpus, Pyrus pyrifolia, rambutan, Ricinus communis, sSantol, shaddock, Schismatoglottis, Squash, Terminalia catappa, Theobroma cacao, Thevetia peruviana Aponychus Rimando, 1962 *Aponychus corpuzae Rimando, 1962 Japan, Taiwan, Thailand, Philippines Bamboo, Bambusa stenostachya, Schizostachyum lima *Aponychus nakaoi Ehara and Wongsiri, 1975 Thailand Bamboo *Aponychus Siamensis Ehara and Wongsiri, 1975 Thailand Bamboo *Aponychus vannus Rimando, 1968 Thailand, Philippines Bamboo - 912 - Panonychus Yokoyama, 1929 Panonychus citri (McGregor, 1916) Japan hadwane Honteksone sihaaland. (Hagrlyntdentihicativons OF this mite may include Panonychus elongatus Manson.) Avocado, Areca cathecu, Averrhoa, Boehmeria, Carica papaya, Citrus, Coccoloba uvifera, Cocos nucifera, Coculus trilobus, Ficus, Jasminum, Morus australis, Murraya paniculata, Osmanthus, Pithecellobium dulce, Prunus persica, Pyrus pyrifolia, Rosa, Sapodilla, Trachycarpus excelisay ils valnterar ‘Ae ze *Panonychus elongatus Manson, 1963 Burma, Thailand CruEGnUs *Panonychus globosus Tseng, 1974 Taiwan Achyranthes obusforia, Wale aus) Panonychus ulmi (Koch, 1836) Japan Apple, pear Allonychus Pritchard and Baker, 19955 *Allonychus bambusae Lo, 1969 Taiwan Bambusa Eotetranychus Oudemans, 1931 *Eotetranychus asiaticus Ehara, 1956 Japan, Taiwan Citrus, Ficus erecta, grape, guava, Morus, persimmon, ~ shaddock *Eotetranychus boemeriae Lo, 1969 Taiwan Boehmeria nivea, Broussonetia papyrifera *Eotetranychus boreus Ehara, 1969 Japan Apica eo, plum *Eotetranychus camelliae Tseng, 19795 Taiwan Camellia sasanqua *Eotetranychus celtis Ehara, 1965 Japan, Thailand Celtis sinensis var. japonicus, Morus *Eotetranychus shii Ehara, 1965 Japan Shiia sieboldii - 913 - *Eotetranychus cendanai Rimando, 1962 Taiwan, Thailand, Cambodia, Philippines Citrus, Cy aurantifolia’ €. shystrix, Cy nobilis. -Glrrrertdats Sepium, Murraya paniculata, Sesbania grandiflora, Shaddock *Eotetranychus geniculatus Ehara, 1969 Japan aD Grape, strawberry *Eotetranychus kankitus Ehara, 1955 Japan Citrus *Eotetranychus maai Tseng, 1975 Taiwan Rubus Eotetranychus sexmaculatus (Riley, 1890) Taiwan Citrus Eotetranychus smithi Pritchard and Baker, 1955 Japan Grape, pear *Eotetranychus Spanius Rimando, 1962 Philippines Psidium guajava *Eotetranychus suginamensis (Yokoyama, 1932) Japan Morus, Quercus serrata *Eotetranychus Suvipakiti Ehara and Wongsiri, 1975 Thailand Banana, Dioscorea *Eotetranychus thailandicus Ehara and Wongsiri, 1975 Thailand Ficus Schizotetranychus Tragardh, 1915 *Schizotetranychus andropogoni (Hirst, 1926) Thailand Sugarcane *Schizotetranychus baltazarae Rimando, 1962 Philippines, Taiwan, Burma Citrus nobadius *Schizotetranychus bambusae Reck, 1941 Japan Bamboo - 914 - *Schizotetranychus bhandhufalcki Ehara and Wongsiri, 1975 Thailand Cassia, C. Siamea, leguminous plants, Pterocarpus macrocarpus Schizotetranychus celarius (Banks, 1917) Japan, Hong Kong Bamboo, grass, rice *Schizotetranychus cercidiphylli Ehara, 1973 Japan an oo Cercidiphyllum japonicum *Schizotetranychus chiangmaiensis Ehara and Wongsiri, 1975 Thailand Calotropis gigantea *Schizotetranychus floresi Rimando, 1963 Philippines Bambusa spinosa *Schizotetranychus lanyuensis Tseng, 1975 Taiwan Hosts unknown *Schizotetranychus lechrius Rimando, 1962 Philippines, Taiwan Bean, Citrus, Colocasia esculentam *Schizotetranychus leguminosus Ehara, 1973 Japan Stree Maackia amurensis var. buergeri, Pueraria lobata *Schizotetranychus mori Tseng, 1975 Taiwan Morus *Schizotetranychus vermicularis Ehara and Wongsiri, 1975 Thailand Grass *Schizotetranychus yaungi Tseng, 1975 Taiwan Citrus medica var. sarcodactylis, C. paradisi *Schizotetranychus yoshimekii Ehara and Wongsiri, 1975 Thailand Race Oligonychus Berlese, 1886 *Oligonychus antherius Rimando, 1963 Philippines Desmodium gangeticum, Flemingia strobilifera Oligonychus bicolor (Banks, 1894) Taiwan Acer cinnamomifolium, Zelkova serrata = 915 - Oligonychus biharensis (Hirst), 1924 Taiwan, Thailand, Philippines Acacia confusa, Achras zapota, Ampelopsis heterophylla, apple, Artocarpus integer, Bauhinia purpurea, Bischofia javanica, Cassia fistula, Citrus, Diospyros, Durio zibethinus, Eriobotrya japonica, Erythrina, Eugenia javanica, Euphoria longana, Goniothalamus undulatus, Hevea, Hibiscus tiliaceus, legume, Lepisanthus sengalensis, Litchi chinensis, Macaranga bicolor, Mangifera indica, Musa, Persea americana, Pleuropterus hypoleucus, Pyrus pyrifolia, Rosa, Sapindus mukorossi, Vitis vinifera, Zizyphus cambodiana Oligonychus coffeae (Nietner, 1861) Taiwan, Thailand, Philippines Alnus japonicus, avocado, Citrus, Combretum quadrangulare, Juniperus chinensis, mango, Punica granatum, Syzygium jJanbos cea *Oligonychus exsiccator (Zehntner, 1897) Java, Indonesia Sugarcane Oligonychus hondoensis (Ehara, 1954) Japan Japanese cedar *Oligonychus kadarsani Ehara, 1969 Java, Indonesia Sugarcane *Oligonychus karamatus (Ehara, 1956) Japan Larix leptolepis Oligonychus mangiferus (Rahman and Sapra, 1940) Taiwan Annona squamosa, Bauhinia acuminata, Delonix, Euphoria longana, Mangifera indica, Musa, Rosa, Terminalia Catappa; = oe ee een eee *Oligonychus matthyssei Rimando, 1963 Philippines Gliricidia Sepium *Oligonychus modestus (Banks, 1900) Thailand Cocos nucifera *Oligonychus orthius Rimando, 1963 Japan, Taiwan, Thailand, Philippines Imperata cylindrica, Musa sp., Saccharum officinarum, Sorghum vulgare, Zea mays *Oligonychus oryzae (Hirst, 1926) Thailand Corn, Musa - 916 - *Oligonychus penai Rimando, 1963 Philippines Ixora chinensis *Oligonychus perditus Pritchard and Baker, 1955 Japan, Taiwan, Hong Kong Chamaecyparis, Juniperus *Oligonychus rubicundus Ehara, 1971 Japan Miscanthus sinensis *Oligonychus shinkajii Ehara, 1963 Japan, Taiwan Corn, Languas speciosa, rice, sugarcane, Trachycarpus excelsa Oligonychus subnudus (McGregor, 1950) aliwan Pinus *Oligonychus tsudomei Ehara, 1966 Japan Zz Pinus luchuensis *Oligonychus urma Ehara, 1966 Japan Bamboo *Oligonychus velascoi Rimando, 1962 Thailand, Philippines Banana, coconut, Corchorus, Musa x paradisiaca, Pennisetum purpureum *Oligonychus yuae Tseng, 1975 Taiwan Cunninghamia *Oligonychus yasumatsui Ehara and Wongsiri, 1975 Thailand Pinus kesiyu Tetranychus Dufour, 1832 Tetranychus cinnabarinus (Boisduval, 1867) Japan, Philippines Citrus, Musa acuminata, pear, Phaseolus vulgaris, soybean, Strawberry - 917 - Tetranychus desértorum Banks, 1900 Japan Cucumber, eggplant, melon, Phaseolus, Physalis pruinosa, soybean *Tetranychus fijiensis Hirst, 1929 Thailand, Philippines Citrus, coconut, Dieffenbachia picta, peach, pear, pummelo, Ptychosperma macarthuri Serr, Tetranychus hydrangeae Pritchard and Baker, 1953 Taiwan, Thailand, Philippines Codiaeum variegatum, Ficus religiosa, Glycine, grape, Hydrangea macrophylla, Manihot utilissima, Melia, Polygonum multiflorum, Rosa, Rubus and many others *Tetranychus kanzawai Kishida, 1927 Japan, Taiwan, Hong Kong, Philippines Apple, Citrus, clover, corn, eggplant, Ehretira macrophylla. grape, hop, Manihot maritima, Morus, Murraya paniculata, peach, pear, Phaseolus lunatus, Sambucus, Solanum nigrum, soybean, tea, Terminalia catappa, Verbena hortensis, Vi; phlogii lorax *Tetranychus lambi Pritchard and Baker, 1955 Taiwan Cordyline terminalis Tetranychus ludeni Zacher, 1913 Taiwan Fragaria chiloensis, Ipomoea batatas, Livistonia, Rubus, Solanum tervum, Vitis vinifera Tetranychus marianae McGregor, 1950 Thailand, Philippines Bamboo, Centrosema pubescens, Ipomoea aquatica, I. triloba, Merremia vitifolia, Morus ms Tetranychus neocalidonicus Andre, 1933 Taiwan, Hong Kong, Philippines Acalypha stipulacea, Acalypha wilkesSiana, Ageratum conyzoides, Aleurites, Artocarpus integrifolia, banana, Buddlelia paniculata, Ceiba pentandra, ColocaSia esculenta, Gynura crepedioldes, Ipomoea, Iris, Merremia vitifolia, Moringa oleifera, Morus alba, MuSa x paradisiaca, MusSaenda philippica, Nephrolepis exaltata, Ruellia tuberosa, Solanum melongena, S. tervum, S. verbascifolium, Tectona grandis, Zea mays a Be *Tetranychus phaselus Ehara, 1960 Japan, Taiwan Glycine, Phaseolus vulgaris, soybean - 918 - *Tetranychus piercei McGregor, 1950 Japan, Taiwan, Hong Kong, Philippines Ageratum esculenta, Carica papaya, Cliforea ternates, Colocasia esculenta, Musa sSapientum, M. textilis, palm, Prunus persica, Sweetpotato 7 *Tetranychus ricini Tseng, 1975 Talwan Ricinus communis *Tetranychus taiwanicus Ehara, 1969 Taiwan, Thailand Citrus, Pandanus odoratissimus Mretranyehuss, tellarius, (Linnaeus. L798) \' Japan, Taiwan. (According to Ehara this appears to be a mixture of T. cinnabarinus and T. urticae.) *Tetranychus truncatus Ehara, 1956 Japan, Taiwan, Thailand, Philippines Achyranthes aspera, Ameranthus spinosus, Ameranthus tricolor, Brassicalpekinensiss) iCarwcalipapaya, Cerba pentandra, CeloSia argentea, Clerodendron, Cucumis, Cuciebaita maxima yyDahinas DWaturayalbayiGlycine soja, Impatiens balsamina, Ipomoea reptans, Lycium chinense, Manihot, M. esculenta, Melia, Momordica cochinchinensis, Moringa oleifera, Morus, Oryza Sativa, Phaseolus lunatus, Psidium Sativum, Psophocarpus tetragonolobus, Ricinus communis, Rosa, Sambucus, Sambucus formosana, Spathiphyllum cannaefolium, Zea mays Tetranychus tumidellus Pritchard and Baker, 1955 Taiwan, Thailand Morus alba, Sambucus formosana, Solanum *Tetranychus umalii Rimando, 1963 Philippines Asparagus plumosus Tetranychus urticae Koch, 1836 Japan Apple, gGape, peach, pear, sweet cherry *Tetranychus viennensis Zacher, 1920 Japan Apple, cherry, pear Tetranychus yusti McGregor, 1955 Thailand Cucumis, Manihot esculenta References cited Ehara, S. 1955. On two spider mites parasitic on Japanese citrus. Ann, Zool. Jap. 28(3)::178-182. Ehara, S. 1956. Some spider mites from Northern Japan. J. Fac. Sci. Hokkaido Univ., Ser. VI, Zool. 12(3) :244-258. - 919 - Eharage ss 19356= Tetranychoid mites of mulberry in Japan. J. Fac. Sci. Hokkaido Univ., Ser VI, Zool. 12(4):499-510. Ehara, S. 1964s"the tetranychoid mites of Japan. Acarologia VI, fasc. h.s.:409-414. Ehara, S. 1965. Two new species of Eotetranychus from Shikoku, with notes on E. kankitus Ehara (Acarina => “Tetranychidae) . J. "Fae- Sci. Hokkaido Univ., Ser. VI, Zool. 15(4) :618-624. Ehara, 8S. 1966. The tetranychoid mites of Okinawa Island (Acarina: Prostigmata). J. Fac. Sci. Hokkaido Univ., Ser. VI, ZOOM. AUGIGL F322 Ehara, S. 1969. Spider mites of sugar cane in Eastern Asia (Acarina:Tetranychidae): J; %Fac?, kdue = “fottor: Univ. Nae. Sens 20'Ch) 719=24) Ehara, S. 1969. The tetranychoid mites of Taiwan (Acarina: Prostigmata)). J. Facs Educes-tot tort UnevesNats sere - 29 @)- 79-103. Ehara, S. 1969. Three spider mites of the genus Eotetranychus infesting fruit trees in Japan (Acarina: Tetranychidae). Appl. Ent. Zool. 4(1):16-22. Ehara, S. 1971. Description of a new species of Oligonychus, with notes on Bryobia pritchardi Rimando and Tetranycopsis borealis Ehara and Mori (Acari: Tetranychidae) © J. Fac. EducSelottori: UniveNat2 Sc t2422 Cb) 71. Ehara, S. 1973. Three species of the genus Schizotetranychus (Acarina: Tetranychidae). Ann. Zool. Jap. Zool. Soc. Jap. 46 (4) :224-232. Ehara, S. 1975. A guide to the tetranychid mites of agricultural importance in Japan. Approaches to biological control JIBP Synthesis 7:15-23. Ehara, 'S. and Lo; H-Y. 1971. Mites associated with *plants in Hone: Kong:: oJ. thac> (hducs Sfottory Umitvs Nat. OSei aaa aye 61-78. Ehara, S. and Mori, H. 1969. A new species of the genus Tetranycopsis Canestrini from Japan (Acarina: Tetranychidae). Ann. Zool. Jap. 42(1):45-48. Ehara, S. and Wongsiri, T. 1975. The spider mites of Thailand (Acarina:Tetranychidae) Mushi 48(13):149-185. Ehara, S. and Yamada, M. 1968. Description of a new species of Bryobia from Japan (Acarina: Tetranychidae). Ann. Zool. Jap. 41(2) :66-69. Lo, P.K-C. 1969. Tetranychoid mites infesting special crops in Taiwan. Chung-san Acad. Cult. Ser. 4:43-48. - 920 = Lo, P.K-C. and Hsia, D.N.T. 1968. Tenuipalpid and tetranychid mites infesting citrus in Taiwan, and life history study of the citrus green mite, Schizotetranychus baltazarae Rimando. Bull. Sun Yat-sen Cult. Found. 1:253-274. Manson, D.C.M. 1963. Mites of the families Tetranychidae and Tenuipalpidae associated with citrus in South East Asia. Acarologia 5(3) :351-364. Pritchard, A.E. and Baker, E.W. 1955. A revision of the spider mite family Tetranychidae. Mem. Pac. Coast Ent. Soc. 2: 1-472. Pritchard, A.E. and Keifer, H.H. 1998.. Two new species of Bryobia with a revised key to the genus (Acarina: Tetranychidae). Ann. Ent. Soc. Amer. 51(5):503-506. Rimando, L.C. 1962. Four new species of spider mites of the genera Eotetranychus and Schizotetranychus (Tetranychidae: Acarina). Philippine Agr. 45(10):535-544, Rimando, L.C. 1962. The tetranychoid mites of the Philippines. insva Pha lappane. Tech. Bull. 11:1—52;, Rimando, L.C. 1966. A new subfamily of spider mites with the description of a new genus and two species (Acarina: Tetranychidae; Aponychinae). Philippine Agr. 50:105-113. Tseng, Y-H. 1974. Systematics and distribution of phytophagous and predatory mites on grapes in Taiwan 1. Phytophagous Mies alee Aet. ASS. China, New. Ser. , 88:56-73. Tseng, Y-H. 1975. Systematics and distribution of the phytophagous mites of Taiwan, Part I. A revision of the mite family Tetranychidae, with an illustrated key to genera of the world, Plant Quarantine Bull. 10, Bureau of Commodity Inspection and Quarantine, Ministry of Economic Affairs, Repubilie.of China. Uses. Dept. Acre: Coop. eon... Ins. Rpice 25 (49-52) :911-921, 1975 - 921 - Weather of the week continued from page 894. average snow depths measured only 1-2 inches. At midday, showers and thundershowers streamed into areas from Florida and the Carolinas. Light rains were scattered northward to New England and widespread snow sprawled across lower Michigan and the eastern half of the Ohio Valley. In the West, drizzle and fog enveloped the coastal areas from central California northward. The only fair skies to be found reached eastward across southern and Central Plateau regions into the lower Plains. A slow moving storm center along the lower Great Lakes region Kept. the northern tier ot the States on lookout at midweek. Snow drifted into parts of Michigan, North Dakota, Montana, and Idaho throughout the day and by evening freezing rain iced the central and lower Great Lakes region. From the Canadian border to Florida, morning temperatures ranged in the 30's and 40's and hovered in the lower teens in the northern Plains. Though winter made a firm grasp on the East and North, it seemed like springtime across the central and southern Plains. In the afternoon, sunny skies warmed areas from the southern Plateau region across the lower Great Plains into western Kentucky and Alabama. In Pueblo, Colorado, balmy 64 degrees put a new record high on the books. A cold front pushing southward through the Plains and eastward across the Great Lakes region on Thursday morning, hailed wintry weather in its path. Morning temperatures behind the front sank into the teens in the northern Plains. During the day, an intrusion of cold air gave rise to 9 varieties of precipitation throughout the interior of the Nation. Snow was scattered from the northern Rockies into western Nebraska and over the northern Plains into parts of Wisconsin, Michigan, and Pennsylvania. Chilly damp weather persisted across large parts of the country into the evening, though light widespread precipitation caused hazardous traveling conditions in many areas. Elsewhere another frontal system brought adverse weather to parts of the western United States. As a Pacific storm approached the coast, light rain and snow occurred along the western edges of northern California and Oregon. As the weekend approached, a western winter storm was passing over the Intermountain regions and Rockies. Fed by cold air pushing behind a northwest frontal system, the storm deepened in the northern Great Basin area. Friday, rain or snow reached across the mountains from central California through Nevada, Utah. Idaho, and Wyoming. A Cold front moved into Texas, a low pressure center formed in Missouri, and brought low clouds with widespread drizzle and fog to much of the remainder of the Plains, the upper Mississippi Valley, and portions of the Ohio Valley. Cutting its way through the high central Plains, a western storm spread snow from the Pacific Northwest over the Plateau and northern Rockies on Saturday. Behind the snow, arctic air sliding southward tumbled some temperatures to near zero levels--Havre, Montana, 2 degrees. For a warmer note, above normal temperatures spread northward through the Ohio Valley. Precipitation in the area included some locally heavy thunderstorms in Illinois, Indiana, and Michigan. Winter arrived in the Plains on Sunday as cold air pushing southward caused temperatures in Kansas and Iowa to drop 30 degrees or more compared to early morning readings. In portions of the northern Rockies and Plains, temperatures plunged well below zero. Meantime, unseasonably warm weather shattered record high temperatures throughout the middle Mississippi Valley where readings ranged from the 50's to the low 70's. - 922 - oe al FAV PONDS SO PMaM TR Rag wo EGS nd A, 2 TAS ee ea Ve TTA Y ha aay: ctie~ iy aes J Piet? 260. Beak hs 3 AP Gin U.S. DEPARTMENT OF AGRICULTURE HYATTSVILLE, MARYLAND 20782 POSTAGE AND FEES PAID OFFICIAL BUSINESS U.S. DEPARTMENT OF PENALTY FOR PRIVATE USE, $300 AGRICULTURE AGR 101 AN we Nd N va My