Historic, archived document Do not assume content reflects current scientific knowledge, policies, or practices. | ‘| | | | | | | AGRICULTURAL RESEARCH SERVICE PLANT PEST CONTROL DIVISION SURVEY AND DETECTION OPERATIONS 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 Division serves as a clearing house and does rot assume responsibility for ac- curacy of the material. Reports and inquiries pertaining to this release should be mailed to: Survey and Detection Operations Plant Pest Control Division Agricultural Research Service United States Department of Agriculture Washington 25, D. C. Volume 12 August 31, 1962 Number 35 COOPERATIVE ECONOMIC INSECT REPORT HIGHLIGHTS Damage to flax by GRASSHOPPERS observed in North Dakota. (p. 965). FALL ARMYWORM activity increasing in Virginia and Maryland and outbreak continues in Alabama. Also present in New Jersey and New York. (p. 966). WESTERN CORN ROOTWORM adults averaged 27 per 100 corn plants in Goshen County, Wyoming, and a CHINCH BUG (Blissus leucopterus insularis) damaging to St. Augustine grass lawns in areas of Louisiana, Florida and North Carolina. TWO-SPOTTED SPIDER MITE continues extremely abundant on sweet corn in southwest Idaho and a problem in Jackson County, Oregon, alfalfa fields; also damaging lower leaves of corn in Larimer, Weld, Adams and Morgan Counties, Colorado. (p. 967). SPOTTED ALFALFA APHID continues to spread in South Dakota; reported in Canyon County, Idaho; and increasing in Arkansas Valley in Colorado. (p. 967). LYGUS BUGS heavy on alfalfa in several New Mexico counties; vary 25-30 per sweep in Lyon County and 11-16 per sweep in Washoe County, Nevada; and a problem in alfalfa seed fields in Umapine area of Umatilla County, Oregon. ALFALFA Srceay increasing in Arizona, New Mexico and Colorado; becoming economic. p. 968). Some BEET WEBWORM controls applied in fields of sugar beets near Huntley, Wyoming, and SWEETPOTATO WEEVIL adults more numerous than past two seasons in Louisiana, Go. 971). BOLLWORMS increasing and becoming more of a problem to cotton in South Carolina, Mississippi, Louisiana, Arkansas, Tennessee, Missouri, New Mexico, Arizona and California; controls recommended or underway. CABBAGE LOOPER damaging cotton in Mississippi, Louisiana, New Mexico and California. (p. 972). LYGUS BUGS continue to require controls in late-fruiting cotton in Arizona and California, and SPIDER MITES damaging to cotton in South Carolina, Mississippi, New Mexico and Cali- fornia. (p. 973). BARK BEETLES economic and damaging to pines in Texas, Louisiana, North Carolina and Virginia (p. 974); and MIMOSA WEBWORM moderate to severe on mimosa and honey- locust in central and southern Maryland, and damaging to honeylocust in areas of Ohio and Pennsylvania (p. 975). FLEAS troublesome in Rhode Island, New Jersey, Wisconsin and Nebraska; and CRICKETS invading homes and business establishments in Maryland, Ohio, Indiana and Missouri. (p. 979). DETECTION ELM LEAF BEETLE recorded for first time in New Mexico (p. 975), and a PLUME MOTH (Platyptilia picta) now known to be established in 2 greenhouses in Pennsylvania (p. 976). New county records reported were a RUST MITE (Aculus pelekassi) in Alachua, Putnam and Volusia Counties, Florida (p. 969); MIMOSA WEBWORM in Wayne, Henry and Wood Counties, Ohio (p. 975); AMERICAN DAGGER MOTH in Moscow area (Latah County), Idaho (p. 976); and FACE FLY in Niobrara County, Wyoming, and Weld and Morgan Counties, Colorado (p. 978). (Continued on page 964) - 964 - CORRECTIONS See page 981. SPECIAL REPORTS Hessian Fly Survey in Illinois - 1962. (p. 966). Status of the Screw-worm in the Southwest. (p. 977). Interceptions of Special Interest at U. S. Ports of Entry. (p. 984). Insects Not Known to Occur in the United States (lucerne beetle (Phytodecta fornicatus Briiggem.)). (p. 985). Reports in this issue are for week ending August 24, unless otherwise indicated. 2K KK 2 CE KK 2K 2 2K KK > 2K 2K OK 2k WEATHER OF THE WEEK ENDING AUGUST 27 Weather for the past week began on a hot note over the entire country and some daily record high temperatures were set in central and eastern areas. Daily maxima exceeded 90° northward to the Canadian Border in Washington, into the northern Plains, the Great Lakes States and east-central New York. The mercury at Harrisburg, Pennsylvania, hit 100° on the 20th, which surpassed the old high for that date, set in 1899, by 5°. St. Louis, Missouri, warmed to 104°, Little Rock, Arkansas, to 103°, and Cincinnati, Ohio, to 102°, all for daily records on the 20th. A 107° high was observed at Frederick, Oklahoma, on the 21st. A cool high began a trek from the northwest on Monday behind an active frontal system, lowering temperatures as it traveled eastward. Near freezing temperatures were observed in the Reno, Nevada, area on Several mornings and the weekly average was 5° below normal. Frost, light snow, and slightly below normal averages were also recorded in the Rocky Mountain states of Colorado, Utah, Wyoming and Idaho, and the Pacific Northwest. By Friday, the high dominated the weather west of the front stretching from Lake Huron to southwest Texas. A 55-day dry spell was broken at Austin, Texas, from Showers touched off along the front. In all, Austin collected 4.55 inches for the weekly total, most of which fell on Friday and Saturday. Little or no precipitation was reported from the 3-state area around California, Oregon and Nevada, in contrast to the ample l-inch amounts measured in the Midwest, Maine, most of the Gulf area and the south Atlantic coast sections. Much of the area from northern Wisconsin to central Kansas had amounts exceeding 2 inches, with 4-inch totals in some northeast areas of Kansas. The Blacklands and central areas of Texas received at least temporary relief by earth-soaking rains. Recurring showers over Florida gave mostly 2- to 3-inch totals, with some 4- to 6-inch amounts for the week in central areas. On the final 2 days of the period, warm air again covered the Far West and Great Plains. Maxima soared to 116° at Yuma, Arizona, on the 25th,and to 105° at Pierre, South Dakota, on the next day. Temperatures over the major part of the country were near to or slightly above normal, with the largest positive departures in the Ohio Valley, middle Mississippi Valley, and the northern Great Plains. Averages ranged up to 6° above normal. Severe weather was light during the week. One funnel touched down near Corpus Christi, Texas, on Tuesday, damaging a barn and farm house, Another was sighted near Lamar Ranger Station in Wyoming on Wednesday and, on Sunday, one caused minor damage near Rollin, Michigan. Hailstones to 1 inch in diameter and high winds inflicted property and crop damage in central Maine on the 20th and a heavy shower left 3.05 inches of rain in 35 minutes at Hartwell, Georgia, on the 21st. (Summary supplied by U. S. Weather Bureau) - 965 - CEREAL AND FORAGE INSECTS GRASSHOPPERS - MISSOURI - Melanoplus spp. static throughout State. Crop damage increasing with dry weather and maturity of wasteland vegetation. (Munson, Thomas, Wood). WISCONSIN - Grasshoppers, particularly Melanoplus femurrubrun, generally quite high in southwest. Crop damage minimal, although some corn being treated in areas adjacent to recently cut alfalfa. Unusually high popu- lations of Epicauta pennsylvanica, as well as disease and other natural controls, should tend to decrease grasshopper populations in this area next season. (Wis. Ins. Sur.). MINNESOTA - Economic infestations scattered and occasionally localized in southwest, northwest, north central and central districts. In southwest, high counts of 15-150 per Square yard found in Lac qui Parle, Yellow Medicine, Jackson and Brown Counties. High numbers of M. differentialis found in field of corn in Lac qui Parle County, with heavy feeding damage in marginal rows. In northwest, highest ’populations, up to 50 per square yard, found in Kittson and Marshall Counties; most high populations west of U. S. Highway 75, with damage generally light in area, Infestations mostly noneconomic in north central and central districts; M. femurrubrum dominant species in most fields. M. bivittatus and M. differentialis dominant in number of fields, especially those with high counts. (Minn. Ins. Rpt.). NORTH DAKOTA - Adult grasshopper survey concluded in Logan, Emmons, Sioux, Grant and Morton Counties. Infestation generally noneconomic or light. However, threatening in 2 areas, one in southwest Emmons County and other at Elgin in Grant County; counts ranged 8-12 per square yard. Dominant Species M. sanguinipes and M. bivittatus. Counts in remaining areas ranged 2-6 per square yard, with M. sanguinipes dominant in these areas also. One to 6 per Square yard counted in Burleigh, Kidder and Stutsman Counties; M. sanguinipes dominant, with some M. bivittatus present. Some damage to alfalfa observed. (Schenck). In Eddy and Foster Counties, counts 1-8 per square yard; M. sSsanguinipes dominant, with M. bivittatus second in numbers. Some Camnula pellucida also present. In McLean County, counts per Square yard 2 in field and 7 in margins; M. Sanguinipes dominant, M. packardii second and some M. bivittatus and C. pellucida present. Damage to flax observed in all counties; cutting off bolls. (Larsen). Grasshoppers, mainly M. bivittatus, damaging oats in field near Mountain in Pembina County; counts 10-15 per square yard in margin of field. (N. D. Ins. Sur.). IDAHO - Oviposition by Camnula pellucida now occurring; 100-300 adults per square yard on oviposition sites in Fernwood area, Benewah County. Adults generally range 2=—20 per square yard on surrounding grassy meadows. (Smith). CORN EARWORM (Heliothis zea) - NEW YORK - Few small larvae being found in corn in Hudson Valley. If cool weather continues, main moth flight normally due in late August and early September will be delayed 1-2 weeks. (N. Y. Wkly. Rpt., Aug. 20). MARYLAND - Infestations ranged 20-60 percent in corn planted in late May and early June on Eastern Shore. (U. Md., Ent. Dept.). VIRGINIA - Few present on soybeans in Charles City and New Kent Counties. (Settle, Aug. 16). GEORGIA - Heavy on sweet corn in Dooly County. (Snapp, Aug. 17). INDIANA - Adults increasing in light traps, especially in southern area. (Gould). WISCONSIN - Third-stage larva found in field of corn near Brodhead, Green County, where populations generally quite high. Eggs found on silks of sweet corn in southern part of State; controls underway. (Wis. Ins. Sur.). MISSOURI - Light to moderate in heads of grain sorghum in scattered areas throughout State; ranged 2-31 larvae per 100 heads in susceptible fields. (Munson, Thomas, Wood) . OKLAHOMA - Averaged 1.25 per head in field of sorghum in Choctaw County, southeast. (Okla. Coop. Sur.). ARKANSAS - Found in 6 of 30 soybean fields checked in central, east central and southeast areas; highest count, 9 per 30 feet of row. Adults active in soybeans; eggs extremely difficult to find. Majority of eggs on upper one-third of plant, on top and bottom of leaves. (Ark. Ins. Sur.). NEW MEXICO - Damaging corn and grain sorghum in Eddy County; few fields treated. (N. M. Coop. Rpt.). WYOMING - Averaged 1 larva per 100 plants in corn fields near Veteran, Goshen County. (Fullerton). OREGON - Populations in Hermiston area, Umatilla County, considerably below those of 1961. (Bierman). - 966 - FALL ARMYWORM (Laphygma frugiperda) - NEW YORK - Larvae present on scattered groups of small corn plants in Hudson Valley. (N. Y. Wkly. Rpt., Aug. 20). NEW JERSEY - Small numbers observed on field corn in Middlesex County. (Ins.-Dis. Newsltr., Aug. 21). MARYLAND - Infesting over 50 percent of plants in large field of silage corn in Talbot County; moderate in late -planted corn in Frederick County. (U. Md., Ent. Dept.). VIRGINIA - Considerable activity in Northampton County. (Hofmaster). Few present on soybeans in Charles City and New Kent Counties. (Settle, Aug. 16). ALABAMA - Continued outbreaks observed on soy- beans in Mobile and Baldwin Counties. (Buttram). EUROPEAN CORN BORER (Ostrinia nubilalis) - WISCONSIN - Egg laying well underway, although egg masses still difficult to find. Examination of field of corn near Prairie du Chien revealed a third-stage larva, probably second generation. Dissection in this field showed 4 percent third instar, 32 percent fifth instar and 64 percent empty pupal cases. Dry conditions in several fields caused leaf rolling which tends to dislodge eggs. Some bird feeding observed on corn in Crawford County. (Wis. Ins. Sur.). MARYLAND - Second-generation larvae averaged 32 per 100 plants in 5 fields of wild corn checked in Talbot County. (U. Md., Ent. Dept.). DELAWARE - Adults increasing in blacklight traps in Sussex County. Comparatively fresh egg masses common on corn in area. (Huber, Burbutis). NEW YORK - Small borers entering whorls of corn and small percentage of silks in Hudson Valley. Inspection of 300 untreated sweet corn plants at Poughkeepsie, August 16, in mid to late-whorl stage, showed 17 percent of plants with recently hatched larvae. (N. Y. Wkly. Rpt., Aug. 20). LESSER CORNSTALK BORER (Elasmopalpus lignosellus) - NORTH CAROLINA - Destroyed one-half to two-thirds of a 4-acre stand of grain sorghum in Cleveland County. (Robertson). SUGARCANE BORER (Diatraea saccharalis) - LOUISIANA - Continues generally light; however, some infestations beginning to appear in sugarcane belt. (Cancienne, Dray, Awe, IS), HESSIAN FLY SURVEY IN ILLINOIS - 1962 Upper Figure = Average No. Puparia per 100 tillers Lower Figure = Average % of tillers infested WIS = WESTERN CORN ROOTWORM (Diabrotica virgifera) - WYOMING - Adults averaged 27 per 100 plants in corn fields in Goshen County. Heaviest infestations found in -Veteran area, with up to 48 per 100 plants. (Fullerton). corn in Hudson Valley; C. denticulata feeding heavily on weed grasses where feeding injury is conspicuous. (N. Y. Wkly. Rpt., Aug. 20). FLEA BEETLES (Chaetocnema spp.) - NEW YORK-- C. pulicaria common on untreated JAPANESE BEETLE (Popillia japonica) - MARYLAND - Heavy on corn silks in Emmitsburg area, Frederick County. (U. Md., Ent. Dept.). RHODE ISLAND - Damaging silks of corn in Washington County. (Mathewson). DUSKY SAP BEETLE (Carpophilus lugubris) - MARYLAND - Abundant in mature ears of corn in Queen Annes and Worcester Counties. (U. Md., Ent. Dept.). CORN LEAF APHID (Rhopalosiphum maidis) - NEW JERSEY - Heavy in field and sweet corn in several areas. (Ins.-Dis. Newsltr., Aug. 21). MARYLAND - Moderate infestations common on sweet and field corn in Frederick, Talbot and Queen Annes Counties. (U. Md., Ent. Dept.). WYOMING - Found in 18 of 30 corn fields surveyed in Goshen County; most severe damage found in Huntley and Yoder areas. (Fullerton). GRAIN APHIDS - IDAHO - Populations of Rhopalosiphum maidis and Toxoptera graminum in Jefferson County greatly reduced. Only few predators, besides parasitized mummies, present. (Gooch). A CHINCH BUG (Blissus leucopterus insularis) - LOUISIANA - High populations building up on St. Augustine lawns throughout State. (Cancienne, Dry, Aug. 15). FLORIDA — Severely infesting St. Augustine grass at Monticello, Jefferson County, on August 19. (Phillips). NORTH CAROLINA - Infesting St. Augustine grass in Carteret County. Det. by R. L. Robertson. (Mount). RICE STINK BUG (Oeablus pugnax pugnax) - TEXAS - Moderate, widespread infesta- tions occurring on rice in Jackson County. (Texas Coop. Rpt., Bales). ARKANSAS - Averaged 8.6 per 100 heads in 5 rice fields checked in eastern area. (Ark. Ins. Sur.). TWO-SPOTTED SPIDER MITE (Tetranychus telarius) - IDAHO - Continues extremely abundant, with buildup continuing in many hybrid sweet corn fields in southwest area, Considerable damage now occurring in fields where controls were late. (Bechtolt). OREGON - Continues a problem in Jackson County alfalfa seed fields, with control necessary in many fields. (Larson). COLORADO - Causing some "burning" of lower leaves of corn in Larimer, Weld, Adams and Morgan Counties. (Jenkins). SPOTTED ALFALFA APHID (Therioaphis maculata) - OREGON - Economic populations have not developed anywhere in State this season. None found in several fields checked in Umatilla County August 21-22; these same fields infested in 1961. (Capizzi). IDAHO - Adults and nymphs found on new seeding of alfalfa near Parmer, Canyon County. (Bechtolt). SOUTH DAKOTA — Counts in Yankton County as high as 48 per 10 sweeps; averaged 17. Eastward movement appeared to be at Yankton-Clay County line. Averaged 1-2 per 10 sweeps in infested counties in southeastern one-fourth of State. Aphid ranged as far north as middle of Miner and Sanborn Counties. (Hintz). NEBRASKA - Averaged 3 per 10 sweeps in Howard County, with population slowly decreasing. Averaged 7 per 10 sweeps in Red Willow County. (Calkins). COLORADO - Increasing in all areas of Arkansas Valley. Counts 1,000 per 100 sweeps in Prowers County, 10-1,500 per 100 sweeps in Bent, Otero, Crowley and Pueblo Counties. Heavier populations serious threat to new alfalfa stands. (Schweissing). OKLAHOMA - Light, 100-250 per 10 sweeps, in alfalfa checked in Choctaw County, southeast. (Okla. Coop. Sur.). TEXAS - Causing some damage to alfalfa in 400-500 acre field in Bowie County; controls anticipated. (Lynch). NEW MEXICO - Generally light on alfalfa throughout State; however, remains heavy in some isolated fields. (N. M. Coop. Rpt.). = Wier = PEA APHID (Macrosiphum pisi) - NORTH DAKOTA - Appears to be decreasing on forage crops; predators numerous. (N. D. Ins. Sur.). SOUTH DAKOTA - General throughout southeastern part of State; ranged 8-75 per 10 sweeps. (Hintz). WYOMING - Aver- aged 275 per 100 sweeps in Goshen County alfalfa. (Fullerton). UTAH - Moderate on alfalfa in areas of Wasatch, Summit and Morgan Counties. (Knowlton). NEVADA - Very low in alfalfa hay fields in Smith and Mason Valleys, Lyon County, and in Reno-Sparks area, Washoe County. (Parker). NEW MEXICO - Heavy in field of alfalfa in Luna County. (N. M. Coop. Rpt.). MARYLAND - Ranged 0-14 per sweep on alfalfa in Frederick and Howard Counties. (U. Md., Ent. Dept.). POTATO LEAFHOPPER (Empoasca fabae) - MARYLAND - Populations variable; ranged zero to over 30 per sweep on alfalfa in 5 counties. Border injury to alfalfa noticeable in several counties. (U. Md., Ent. Dept.). SOUTH DAKOTA - Ranged 3-33 per 10 sweeps on alfalfa in eastern area. (Hintz). NEBRASKA —- Counts per 10 sweeps in alfalfa averaged 7.4 in Howard County and 19.6 in Red Willow County. (Calkins). THREE-CORNERED ALFALFA HOPPER (Spissistilus festinus) - ARIZONA - Heavy in alfalfa statewide. (Ariz. Coop. Sur.). ARKANSAS - Counts remain rather low in most soybean fields checked in central, east central and southeast areas. Some girdling occurred, but little lodging noted. (Ark. Ins. Sur.). LYGUS BUGS (Lygus spp.) - OREGON - A problem in alfalfa seed fields in Umapine area, Umatilla County; averaged 3 adults per sweep in several fields August 21-22. (Capizzi). NEVADA - Vary 25-30 per sweep in alfalfa hay fields in Smith and Mason Valleys, Lyon County, and 11-16 per sweep in Reno-Sparks area, Washoe County. (Parker). WYOMING - Adults and nymphs averaged 78 per 100 sweeps in Goshen County alfalfa. (Fullerton). NEW MEXICO - Adults and nymphs heavy in alfalfa in Luna, Dona Ana, Chaves, Eddy and Lea Counties. (N. M. Coop. Rpt.). MARYLAND - L. lineolaris averaged 2 per 10 sweeps on alfalfa in Queen Annes County. (U. Md., Ent. Dept.). ALFALFA PLANT BUG (Adelphocoris lineolatus) - WYOMING - Adults averaged 24 per 100 sweeps in Goshen County alfalfa. (Fullerton). STINK BUGS - ARKANSAS —- Found in 20 of 30 soybean fields surveyed in central, east central and southeast areas. Highest count 19 per 30 feet of row. (Ark. Ins. Sur.). BEAN LEAF BEETLE (Cerotoma trifurcata) - ARKANSAS - Found in 25 of 30 soybean fields surveyed in central, east central and southeast areas. Highest count 52 per 30 feet of row; no economic infestations found. (Ark. Ins. Sur.). A WHITE GRUB (Phyllophaga sp., apparently rugosa) - INDIANA - Abundant in soybean field in Benton County. Approximately 20 acres infested and grubs killing plants in 5 acres. (Gould, Aug. 17). 3 A WEEVIL (Sitona scissifrons) - SOUTH DAKOTA - Adults emerging; light counts of 1-5 per 10 sweeps recorded on alfalfa. (Hintz). ALFALFA CATERPILLAR (Colias eurytheme) - ARIZONA - Adults numerous around alfalfa in southeast. (Ariz. Coop. Sur.). NEW MEXICO - Heavy on alfalfa in Chaves and Eddy Counties; lighter in most other areas. (N. M. Coop. Rpt.). COLORADO - Larvae increasing in alfalfa in Arkansas Valley; ranged 0-20 per 100 sweeps. Consider- able leaf damage can occur with high populations. (Schweissing). GREEN CLOVERWORM (Plathypena scabra) - SOUTH DAKOTA - Continues abundant on alfalfa; ranged 1-5 per 10 sweeps. (Hintz). ARKANSAS - Counts continue low in soybeans; found in 15 of 30 fields checked in central, east central and south- east areas, with highest count 9 per 30 feet of row. (Ark. Ins. Sur.). CABBAGE LOOPER. (Trichoplusia ni) - ALABAMA - Becoming more prevalent on soybeans. (Buttram). . = 969) — WEBWORMS (Loxostege spp.) - MISSOURI - L. similalis damage to alfalfa evident in fields ready to cut in northern half of State. Ranged 0-25 larvae per sweep, and webbing found in most fields. (Munson, Thomas, Wood). OKLAHOMA - Loxostege spp. damaging alfalfa in localized areas of Kingfisher and Blaine Counties, central area. (Okla. Coop. Sur.). FRUIT INSECTS CODLING MOTH (Carpocapsa pomonella) - OHIO - Emergence heavy July 12 to August 17; declined Since; no peak noted. (Cutright, Forsythe). OREGON - Second-generation adults appearing in Willamette Valley orchards. (Jones, Aug. 24). UGLY-NEST CATERPILLAR (Archips cerasivoranus) - PENNSYLVANIA - Heavy on cherries in York County. (Sleesman, Aug. 10). A LEPIDOPTEROUS LEAF MINER - PENNSYLVANIA - Undetermined species heavy on apples at Rutherford, Dauphin County; averaged 1-2 mines per leaf in 8 out of 10 leaves, (Balsbaugh). APPLE MAGGOT (Rhagoletis pomonella) - MINNESOTA - Egg laying continues in fruit trees throughout southeastern area; controls on late varieties recommended. (Minn. Ins. Rpt.). WISCONSIN - High populations in Bayfield County. (Wis. Ins. Sur.). OHIO - Adults appeared in traps in apple trees June 25; large numbers recorded on July 12 and continued to August 25 when slight decrease started. No distinct peak of emergence noted. (Cutright, Forsythe). CONNECTICUT - Protec- tion may be needed on late varieties of apples. (Savos). EUROPEAN RED MITE (Panonychus ulmi) - RHODE ISLAND - Extremely heavy egg deposi- tion on apple in Cranston, Providence County. (Cartier). OHIO - Generally declining though persisting later than expected. (Cutright, Forsythe). A RUST MITE (Aculus pelekassi) - FLORIDA - Collected on sweet orange at Imporia, Volusia County, on August 14; on sweet orange and trifoliate orange at 3 loca- tions at Pomona Park, Putnam County, on August 14 and 16; and on tangelo, satsuma, Persian lime and tangerine at Gainesville, Alachua County, August 20. (Graham). These collections first county records for Alachua, Putnam and Volusia. (Fla. Coop. Sur.). Additional collection made in Orange County on Citrus sp. (Burditt, Aug. 17). AN ARMORED SCALE (Unaspis citri) - FLORIDA - Moderate on Citrus sinensis at De Land, Volusia County. (Roberts, Aug. 17). A SCARAB (Dynastes tityus) - FLORIDA - Heavy on mango at Fort Myers, Lee County. (Bostelman, Aug. 14). FALL WEBWORM (Hyphantria cunea) - PENNSYLVANIA - Heavy on walnuts in York County. (Sleesman, Aug. 10). HICKORY SHUCKWORM (Laspeyresia caryana) - FLORIDA - Infesting pecans at Monticello and vicinity, Jefferson County. Det. by A. M. Phillips. (Fla. Coop. Sit ae ae PUSS CATERPILLAR (Megalopyge opercularis) - NORTH CAROLINA - Light on pecan trees in Wake County; first report of season. (Flake). TWIG GIRDLER (Oncideres cingulata) - FLORIDA - Infesting pecans at Monticello and vicinity, Jefferson County. Det. by A. M. Phillips. (Fla. Coop. Sur.). - 970 - WALNUT CATERPILLAR (Datana integerrima) - WISCONSIN - Larvae quite numerous and completely defoliated several walnut trees in southwestern area. (Wis. Ins. Sur.). GRAPE ROOT BORER (Vitacea polistiformis) - DELAWARE - Very heavy in main roots and trunks of greenhouse grapes in Wilmington area, New Castle County; one trunk approximately 6 inches below soil had 21 larvae present, with mostly full-grown and a few early instars. (Kelsey, Burbutis). GRAPE PHYLLOXERA (Phylloxera vitifoliae) - DELAWARE - Fairly heavy on roots of greenhouse grapes in Wilmington area, New Castle County. (Kelsey). TRUCK CROP INSECTS CABBAGE LOOPER (Trichoplusia ni) - VIRGINIA - A nuclear polyhedrosis virus became well distributed on Eastern Shore in recent years; presently about 10 percent of larvae on broccoli at Virginia Truck Experiment Station, Painter, Accomack County, shows visible evidence of virus infection. (Hofmaster). MARYLAND - Light in several tomato fields in Worcester County. (U. Md., Ent. Dept.). CUCUMBER BEETLES - OKLAHOMA —- Diabrotica undecimpunctata howardi and Acalymma vittata heavy on okra, cantaloup, watermelon, field peas and eggplant in Noble, Payne and Pottawatomie Counties. (Okla. Coop. Sur.). MARYLAND - Adults of Acalymma vittata light to moderate on late cucumbers in Worcester County. (U2eiMdiS Entespept.). COLORADO POTATO BEETLE (Leptinotarsa decemlineata) - UTAH - Collected at Snow- ville, Box Elder County; first report from this county since 1950. (Knowlton). VIRGINIA - Adults continue troublesome and caused considerable damage to certain crops; pepper transplants and young cucumbers hard hit in some sections of Eastern Shore. Inspection of potatoes urged. (Hofmaster) . EUROPEAN CORN BORER (Ostrinia nubilalis) - MARYLAND - Entries in peppers increasing; up to 6 percent noted in Worcester County. (U. Md., Ent. Dept.). HORNWORMS (Protoparce spp.) - UTAH - Larvae damaged some home garden tomatoes and potatoes in Ogden area, Weber County. (Knowlton). DELAWARE - P. sexta collections in blacklight traps very high; averaged 18 per night in Sussex County. (Burbutis). TOMATO FRUITWORM (Heliothis zea) - COLORADO - Survey in tomato fields in Otero, Pueblo and Crowley Counties yielded no eggs nor larvae. (Schweissing). GREEN PEACH APHID (Myzus persicae) - COLORADO - Slowly increasing on potatoes in Weld County; averaged 2 per leaf. (Simpson). . MARYLAND - Light to moderate on peppers in Worcester County. (U. Md., Ent. Dept.). Potato Aphids in Maine -—- Seasonal peak on untreated potato foliage at Presque Isle and vicinity, Aroostook County, likely passed. Averaged 6.9 aphids on 3 leaves per plant compared with 5.5 of previous week. Low peak resulted chiefly from action of entomogenous fungi, aided by parasites. POTATO APHID (Macrosiphum euphorbiae) continues to predominate, FOXGLOVE APHID (Myzus solani) least abun- dant. GREEN PEACH APHID (Myzus persicae) and BUCKTHORN APHID (Aphis nasturtii) about equal abundance. (Shands et al.). MEXICAN BEAN BEETLE (Epilachna varivestis) - IDAHO - Locally scattered throughout 6-acre beanfield 1.5 miles east of Twin Falls on U. S. Highway 30; all stages present. Eradicative measures underway; Surveys in surrounding bean fields negative. (Evans). WYOMING - Adults averaged 5 per 100 sweeps in bean fields of Goshen County. (Fullerton). MARYLAND - Light to moderate on late lima bean plantings in Worcester County. (U. Md., Ent. Dept.). = ial < LYGUS BUGS (Lygus spp.) - WYOMING - Adults averaged 36 per 100 sweeps in Goshen County bean fields. (Fullerton). WESTERN BEAN CUTWORM (Loxagrotis albicosta) - COLORADO - Adult collections increased in light trap at Dolores, Montezuma County. Larval damage to beans predicted. (Colo. Ins. Sur.). BEET WEBWORM (Loxostege sticticalis) - WYOMING - Larvae ranged 2-3 per 100 sugar beet plants in fields in Goshen County; some controls applied in fields near Huntley. (Fullerton). CABBAGE APHID (Brevicoryne brassicae) - RHODE ISLAND - Massed on occasional broccoli plant in garden in Kingston, Washington County. (Mathewson). : | SQUASH VINE BORER (Melittia cucurbitae) - RHODE ISLAND - Damaged squash in gardens in Providence, Providence County. (Mathewson). SWEETPOTATO WEEVIL (Cylas formicarius elegantulus) - LOUISIANA - Adults taken in greater numbers in Sweetpotatoes than during past 2 seasons. Some harvested sweetpotatoes now Show injury; increasing damage expected as season progresses. Controls urged. (Cancienne, Dry, Aug. 15). FLORIDA - Heavy on sweetpotatoes at Venus, Highlands County. Det. by W. Breidenbach. (Keck, Aug. 13). HOP LOOPER (Hypena humuli) - OREGON - Not a serious problem in Hermiston area, Umatilla County, this season. (Bierman). TWO-SPOTTED SPIDER MITE (Tetranychus telarius) - OREGON - Slowly building up on hops in Willamette Valley. (Morrison, Aug. 24). TOBACCO INSECTS GREEN PEACH APHID (Myzus persicae) - MARYLAND - Continues at economic levels on untreated tobacco in tobacco-growing counties. (U. Md., Ent. Dept.). TOBACCO FLEA BEETLE (Epitrix hirtipennis) - MARYLAND - Heavy on tobacco adjacent to harvested fields in sections of Anne Arundel County. (U. Md., Ent. Dept.). TOBACCO BUDWORMS (Heliothis spp.) - MARYLAND - Several heavy infestations occurred on tobacco in southern St. Marys County. (U. Md., Ent. Dept.). HORNWORMS (Protoparce spp.) - MARYLAND - Numbers of second brood considerably below normal on tobacco in St. Marys County. (U. Md., Ent. Dept.). COTTON INSECTS BOLL WEEVIL (Anthonomus grandis) - SOUTH CAROLINA - Pressure continues to mount in all areas. Percent infestation in 17 counties, mainly from Clarendon to the mountains, 20.9 in treated and 67.9 in untreated fields. (Cott. Ltr., Aug. 20). ALABAMA — Continues to mount in northern area of State. (Buttram). MISSISSIPPI - Infestations extremely variable in delta counties. Most cotton "cut out". Move- ment of weevils to fields of fruiting cotton common. Small bolls need protection in many fields. (Merkl et al.). LOUISIANA - Infestation higher in Tallulah area due primarily to decrease in number of squares in most fields. Combination treatments for this pest and bollworms general, with major emphasis on bollworm control. (Smith et al.). ARKANSAS - Fourth-generation emergence continues. Boll protection continues to be important. (Cott. Ins. Rpt.). TENNESSEE - Continues to cause serious damage to young bolls in late cotton in western area. Dry weather has caused a high mortality of larvae, but adults very numerous in - 972 - southern section. Movement to north very heavy, but very little damage expécted outside of regularly weevil-infested portion of State. Numerous fields in south- ern tier of counties show a loss of half a crop or more due to weevil damage this season. (Locke). MISSOURI - Found in 59 of 949 fields scouted. Percent punctured squares and bolls ranged 0-9. (French). OKLAHOMA - Infestations averaged up to 4 percent in Hollis area, southwest. Only slightly higher infes- tations noted in fields surveyed elsewhere in southwest and west central areas, averaging less than 12 percent. Few fields in Watonga area averaged up to 40 percent infestation. Infestations in experimental plots in Chickasha area continued below economic level. (Okla. Coop. Sur.). BOLLWORMS (Heliothis spp., et al.) - SOUTH CAROLINA - Pressure is mounting. (Cott. Ltr., Aug. 20). GEORGIA - Counts made in 42 northwest and southern area cotton fields. Eggs ranged 0-115 and averaged 24 per 100 terminals. Larvae ranged 0-41 and averaged 5 per 100 terminals. (Johnson et al.). ALABAMA - Infestations light to moderate throughout State. (Buttram). MISSISSIPPI - Heavy egg deposition on green, succulent cotton observed in delta area. Low percentage of eggs hatching. Treatments needed on irrigated cotton. (Merkl et al.). LOUISIANA - Eggs remain high in many fields in Tallulah area, especially in late fields with more succulent growth. Controls strongly recommended. (Smith et al.). ARKANSAS - Egg deposition heavy in succulent fields. Counts up in southeast, central and northeast areas, but down in upper Arkansas River Valley and southwest. Larval counts down in all areas. Fourth-generation moth emer- gence continues heavy. (Cott. Ins. Rpt.). TENNESSEE - Causing considerable damage in late cotton and controls justified in large number of cases. (Locke). MISSOURI - Of 949 fields scouted, 620 infested,with 0-30 larvae per 100 terminals. Eggs found in 243 fields; counts ranged 0-28 per 100 terminals. Major problems of cotton for past 3 weeks where cotton green and succulent. Expected to continue a problem in fields still growing and fruiting. (French). OKLAHOMA - Decreased generally in cotton checked in Hollis (Harmon County, southwest) area, with infestations averaging up to 2 percent. Scattered checks elsewhere in southwest Showed a few fields having up to 6 percent infestation. Fields in west central area had mainly large or nearly full-grown larvae, with few young instars present. Infestations down somewhat from previous weeks in experimental plots in Chickasha area (averaged 2.5° percent in check plots). Damaging mature bolls (up to 15 percent) in cotton in Choctaw County, southeast. (Okla. Coop. Sur.). NEW MEXICO - Generally heavy on cotton in all areas. (N. M. Coop. Rpt.). ARIZONA - High infestations present in some central area cotton. Egg counts remain high in all areas. (Ariz. Coop. Sur.). CALIFORNIA - Evident in most fields in Shafter area, Kern County, with controls necessary in many situations. (Leigh, Aug. 20). Increasing in many fields in El Centro area, Imperial County, with some parasitism by Trichogramma noted. (Roth, Aug. 21). Continues important in Bakersfield area, Kern County. Controls not giving completely satisfactory results in many areas, particularly when larval counts are high. (Thomas, Aug.21). CABBAGE LOOPER (Trichoplusia ni) - GEORGIA - Ranged light to moderate in 42 northwest and southern area cotton fields examined. (Johnson et al.). ALABAMA - Decreasing on cotton. (Buttram). MISSISSIPPI - Serious "ragging"' of leaves reported in some areas of State. Controls erratic. (Merkl et al.). LOUISIANA - Light "ragging" of leaves reported in Tallulah area; some controls applied. (Smith et al.). OKLAHOMA - Populations dropped to less than 1 per 10 plants in infested fields in Hollis area, southwest. Egg deposition up considerably in experimental plots in Chickasha area. (Okla. Coop. Sur.). NEW MEXICO - Heavy on cotton in Hatch Valley in northern Dona Ana County. Eggs also found in fields in Luna and Dona Ana Counties. (N. M. Coop. Rpt.). CALIFORNIA - Continues evident in many fields in Shafter area, Kern County, with severe infestations in some. Larger larvae difficult to control. (Leigh, Aug. 20). Populations same as previous week in El Centro area, Imperial County. (Roth, Aug. 21). COTTON LEAF PERFORATOR (Bucculatrix thurberiella) - ARIZONA - Infestations lower and later than normal for time of year. (Ariz. Coop. Sur.). CALIFORNIA - Popu- lations increasing in El Centro area, Imperial County; perforated leaves common on borders of many fields. (Roth, Aug. 21). = Os — SALT-MARSH CATERPILLAR (Estigmene acrea) - ARIZONA - Infestations increasing, but being kept low by predators in most cases. Egg masses very common. (Ariz. Coop. Sur.). LEAF ROLLERS —- CALIFORNIA - Increasing on cotton in El Centro area, Imperial County. Some damage noted. (Roth, Aug. 21). LYGUS BUGS (Lygus spp.) - ARIZONA - Infestations declining in early maturing fields and increasing in fields still growing and fruiting well. (Ariz. Coop. Sur.). CALIFORNIA - Continue abundant in many cotton fields in Shafter area, Kern County, and controls will be necessary until late bolls are relatively mature. (Leigh, Aug. 20). Light in most fields in Bakersfield area, Kern County, except near alfalfa hay or seed fields. (Thomas, Aug. 21). Populations Same aS previous week in El Centro area, Imperial County. (Roth, Aug. 21). COTTON FLEAHOPPER (Psallus seriatus) - ARIZONA - Continues to damage cotton in few fields in all areas. (Ariz. Coop. Sur.). STINK BUGS - NEW MEXICO - Chlorochroa sayi damaging cotton in southern Sierra County. (N. M. Coop. Rpt.). ARIZONA - Counts remain high in some fields in all areas, with considerable boll damage in heavily infested fields. (Ariz. Coop. Sur.). CALIFORNIA - Populations same as previous week in El Centro area, Imperial County. (Roth, Aug. 21). CRICKETS - CALIFORNIA - Populations remain high in El Centro area, Imperial County, and constitute problems in some fields. (Roth, Aug. 21). SPIDER MITES - SOUTH CAROLINA - Causing considerable damage in Piedmont area where uncontrolled. (Cott. Ltr., Aug. 20). MISSISSIPPI - Medium to heavy infestations continue to damage cotton in delta area. (Merkl et al.). OKLAHOMA - Scattered, noneconomic to light infestations noted in some fields in Hollis area, southwest, and in experimental plots in Chickasha area, central. (Okla. Coop. Sur.). NEW MEXICO - Heavy on scattered cotton fields in Dona Ana County. (N. M. Coop. Rpt.). CALIFORNIA - Evident in most fields in Shafter area, Kern County, with severe reddening of leaves and considerable defoliation in many fields. Controls recommended in late-fruiting fields. (Leigh, Aug. 20). Present in Bakersfield area, Kern County; damage possible if not controlled. (Thomas, Aug. 21). Populations same as previous week in El Centro area, Imperial County. (Roth, Aug. 21). = EES = FOREST, ORNAMENTAL AND SHADE TREE INSECTS BARK BEETLES —- TEXAS - Total number of spots infested by Dendroctonus frontalis in southeast since March now totals 2,887. Only few new spots located during July in epidemic area outside priority control zones; large areas previously reported appeared about same size. Houston and San Augustine Counties added to other 13 previously infested counties. Controls for D. terebrans underway on infestations which caused mortality of merchantable pine on National Forests in Houston, Sabine, Shelby and Walker Counties. (Young). LOUISIANA - Infestations of unspecified species in pines continue to be reported from various parts of State. (Cancienne, Dry, Aug. 15). NORTH CAROLINA - D. frontalis infestations continue to increase in density in Davidson and Mecklenburg Counties. (H. J. Green). VIRGINIA - D. frontalis causing scattered damage to pine, as was expected; active in King William, Charlotte, Accomack, Westmoreland and Louisa Counties. As yet, damage not severe. Ips spp. and Dendroctonus spp. currently more damaging than D. frontalis. Increase in populations very probable, however. (Va. For. Pest Rpt., July). PENNSYLVANIA - Ips pini reported attacking pine in holdings of a paper company in Blair County. (Pa. For. Pest Rpt., August). NANTUCKET PINE TIP MOTH (Rhyacionia frustrana) - OKLAHOMA - Populations much lighter than normal in southeastern area. Damaging populations in pine nurseries causing commercial foresters considerable concern. (Okla. Coop. Sur.). VIRGINIA —- Noted in all pine plantations examined in Waverly area, Sussex County; severe, up to 40 percent of trees infested, on loblolly pine planted in 2 areas of Henrico County. Larvae causing 2-6 inch dieback of loblolly pine twigs on few trees in Accomack County and on 100 trees in a Northampton County plantation. (Va. For. Pest Rpt., July). ZIMMERMAN PINE MOTH (Dioryctria zimmermani) - PENNSYLVANIA - Larval borings in new shoots causing considerable damage to Scotch, red and Austrian pines on a Perry County plantation. Damage mostly confined to top whorl of branches, several inches of shoots being destroyed. Det. by H. W. Capps. (Pa. For. Pest Rpt., August) . PINE TUSSOCK MOTH (Dasychira plagiata) - MINNESOTA - Eggs in Willow River area, Pine County, about 25 percent hatched. Egg masses found in serious numbers in Mission Township, Crow Wing County. (Minn. Ins. Rpt.). PITCH TWIG MOTH (Petrova comstockiana) - PENNSYLVANIA - Numerous attacks on pitch pine evident August 1 in Adams County. (Pa. For. Pest Rpt., August). WHITE-PINE WEEVIL (Pissodes strobi) - MINNESOTA - Adults ready to emerge. Moderate numbers observed in Badoura area, Hubbard County. (Minn. Ins. Rpt.). VIRGINIA - Damage evident in one spot in Amherst County and 4 spots in Madison County; also evident on scattered white pines in Several areas of Wythe and Carroll Counties, and in several spots in Henry, Franklin and Roanoke Counties. (Va. For. Pest Rpt., July). COOLEY SPRUCE GALL APHID (Chermes cooleyi) - WISCONSIN - Severely damaged blue Spruce in Baraboo, Sauk County. (Wis. Ins. Sur.). UTAH - Lightly damaging blue spruce trees generally about Wasatch County communities. (Knowlton). CONIFER SAWFLIES - NEVADA - Zadiprion rohweri heavy on pinyon pine (Pinus monophylla) southeast of Gardnerville, Douglas County. Larvae almost completely defoliating smaller trees. (Parker). MINNESOTA - Late instars of Neodirpion lecontei actively feeding in central, northeastern and east central districts. Early instars of second-generation Diprion similis common; no area of economic numbers observed. Adults still common and apparently ovipositing. (Minn. Ins. Rpt.). VIRGINIA - N. lecontei larvae casued scattered light defoliation to few trees in Albemarle County; caused minor damage to few loblolly pine seedlings in King and Queen County. (Va. For. Pest Rpt., July). ="979) = LARCH SAWFLY (Pristiphora erichsonii) - PENNSYLVANIA - Caused 60-90 percent defoliation of larch by mid-July in very scattered locations in Warren, Sullivan, Cameron and Clinton Counties. A plantation near Renovo, Clinton County, has now been defoliated for at least 9 consecutive years with no apparent serious consequences. (Pa. For. Pest Rpt., August). FALL WEBWORM (Hyphantria cunea) - NEW MEXICO - Larvae building up in cottonwood trees in Dona Ana and Sierra Counties. Populations much lighter in area than during past several years. (N. M. Coop. Rpt.). VIRGINIA - Noted on persimmon, blackgum, sourwood, hickory and cherry generally throughout Henry County; 1-20 nests per tree. Larvae active on walnut, pecan, black cherry and persimmon throughout Norfolk County. (Va. For. Pest Rpt., July). MIMOSA WEBWORM (Homadaula albizziae) - OHIO - Continues to move northward in State. Heavily infested honeylocusts observed during July in Wooster, Wayne County, for first time. Also recorded for first time in Henry and Wood Counties. (Walker, Neiswander). MARYLAND - Moderate to severe on mimosa and honeylocust in central and southern Sections. (U. Md., Ent. Dept.). PENNSYLVANIA - Heavy on waterlocust (Gleditsia aquatica) in Chestnut Hill, Philadelphia County. Heavy and caused complete defoliation of honeylocust in Newville, Cumberland County. (Sleesman). CATALPA SPHINX (Ceratomia catalpae) - WISCONSIN - Severely damaged catalpas in area in southwestern portion of State. Second-generation second instars feeding in area. (Wis. Ins. Sur.). VIRGINIA - Widespread in Isle of Wight County, causing extensive defoliation of individual trees. (Va. For. Pest Rpt., July). ASH BORER (Podosesia syringae fraxini) - OHIO - More abundant than usual in northern portion of State. Adults emerged in relatively large numbers during August; as many as 20 pupal cases observed at tunnel exits on a white ash, with trunk diameter of approximately 4 inches. (Neiswander). ORANGE-STRIPED OAKWORM (Anisota senatoria) - RHODE ISLAND - Hatching underway in South Kingstown and Exeter, Washington County; and in West Greenwich and Coventry, Kent County. (Mathewson). PALE TUSSOCK MOTH (Halisidota tessellaris) - SOUTH DAKOTA - Larvae taken from cottonwood trees in farm shelter belt in Lake County. (Mast). GYPSY MOTH (Porthetria dispar) - PENNSYLVANIA - Single males trapped in Pike County, as follows: Lehman Township on August 9 and 13; Delaware Township on August 10. Det. by E. U. Balsbaugh. (Bennett, Eshelman). OKLAHOMA - Traps checked in Atoka, Bryan, Choctaw, McCurtain, McIntosh, Pittsburg and Sequoyah Counties continued negative. (Okla. Coop. Sur., PPC). A NOTODONTID MOTH (Datana perspicua) - WISCONSIN - Larvae defoliating smooth sumac in Lafayette County. Wis) "ius. =Surs)): AN OAK LEAF SKELETONIZER - MISSOURI - Unidentified species feeding on pin oak in north central area; defoliation as much as 25 percent on one tree. (Munson, Thomas, Wood). NYMPHALIDS - SOUTH DAKOTA - Two undetermined Species cauSing serious defoliation of young hybrid elms in farmyard in Moody County; ranged 9-12 per branch on 6-foot tree. (Hintz). ELM LEAF BEETLE (Galerucella xanthomelaena) - NEW MEXICO - Medium on elm at Tucumcari, Quay County. Specimens collected August 8 by G. E. Horton. Det. by G. Vogt. This is a new State record. (N. M. Coop. Rpt.). UTAH - Causing some damage to elms.in Holladay-Cottonwood area of Salt Lake County and near Ogden, Weber County. (Knowlton). = 976 — LARGER ELM LEAF BEETLE (Monocesta coryli) - NORTH CAROLINA - Reported to have defoliated group of several elms in Iredell County. Det. by G. D. Jones. ’ (Mount). LOCUST LEAF MINER (Xenochalepus dorsalis) - VIRGINIA - Widespread and caused moderate damage to black locust in Loudoun County; severe on black locust in northern portion of State this year. (Va. For. Pest Rpt., July). LACE BUGS (Corythucha spp.) - NORTH DAKOTA - Heavy damage caused by C. ulmi observed on elms at Valley City, Barnes County. C. arcuata severe on oaks in Devils Lake area, Ramsey County, especially at Wood Lake. (Post, G. Thomasson). PENNSYLVANIA - Very heavy on oaks in Philadelphia, Philadelphia County, and Lansdale, Montgomery County. Also infesting sycamore in these areas. (Sleesman). MARYLAND - Corythucha sp. heavy on several hawthorns at College Park, Prince Georges County. (U. Md., Ent. Dept.). VIRGINIA - All stages of C. arcuata heavy on oaks at Colonial National Historical Park, Yorktown, York County. (Tarpley, Powell, Aug. 20). APHIDS - IDAHO - Periphyllus lyropictus very abundant on maples in numerous areas throughout State. Especially abundant in Hailey area, Blaine County, in southern portion of State-, and in Moscow area, Latah County, in northern part of State. (Warren, Gittins). UTAH - Pterocomma smithiae severe on large black willows about several homes at Heber and Midway, Wasatch County. Unspecified species abundant and curling foliage of some hawthorn bushes in Snake Creek area of Midway; also numerous on young quaking aspen trees at Heber. (Knowlton). PENNSYLVANIA - Macrosiphum liriodendri very abundant this year over most of State. Det. by J. O. Pepper. (Pa. For. Pest Rpt., August). GOLDEN OAK SCALE (Asterolecanium variolosum) - OREGON - Probably this species, seriously damaging twigs and branches of Oregon white oak in Milwaukie-Gladstone area of Clackamas County. (Pearson). BLACK-HEADED ASH SAWFLY (Tethida cordigera) - TEXAS - Infestation reported on more than 50 acres in Polk County. This is part of Same area on which aerial control project was conducted in 1959. (Young). APPLE LEAF SKELETONIZER (Psorina hammondi) - RHODE ISLAND - Active on leaves of beach plum in Saunderstown, Washington County. Braconid-type cocoons frequently noted on damaged leaves. (Mathewson). AZALEA CATERPILLAR (Datana major) - FLORIDA - Ranged light to moderate on Rhododenron sp. at Monticello, Jefferson County, August 17. Collected and determined by A. M. Phillips. (Fla. Coop. Sur.). AMERICAN DAGGER MOTH (Acronicta americana) - IDAHO - Caused some defoliation of clump birches at Moscow, Latah County. Pupation underway. This is first record of occurrence of this species in Moscow area, (Manis). BAGWORM (Thyridopteryx ephemeraeformis) - MARYLAND - Severe injury noted to cedars, sycamores and willows in Anne Arundel and Prince Georges Counties. (U. Md., Ent. Dept.). VIRGINIA - Light on spruce in one spot in Fauquier County and on arborvitae in several spots in Fairfax County. (Va. For. Pest Rpt., July). A PLUME MOTH (Platyptilia picta) - PENNSYLVANIA - Imported from out of State on geraniums in January 1962. Now known to be established in 2 greenhouses; one in Philadelphia, Philadelphia County, and one in Norristown, Montgomery County. (Sleesman). GOLDEN TORTOISE BEETLE (Metriona bicolor) - IDAHO -— Feeding on wild and cultivated morningglories at Stites, Idaho County. (Studer). SBI = COCCIDS - RHODE ISLAND - Eggs and adults of Lepidosaphes yanagicola on winged euonymus in nursery in Plymouth, Newport County. Mathewson, Aug. 16). NEW JERSEY - Neolecanium cornuparvum crawlers active on magnolia. (Ins.-Dis. Newsltr., Aug. 21). DELAWARE - Crawlers of Gossyparia spuria active on elms in area of New Castle County. (MacCreary). MARYLAND - Unaspis euonymi severe on euonymus at Baltimore. (U. Md., Ent. Dept.). FLORIDA - Pseudaulacaspis pentagona ranged moderate to severe on peach (Prunus sp.) at St. Petersburg, Pinellas County, August 13. (Fla. Coop. Sur., Bingaman). UTAH - Lepidosaphes ulmi severe on willow trees in Heber-Charleston area, Wasatch County. (Knowlton). IDAHO - L. ulmi infesting lilacs at Homedale, Owyee County. (Scott). PEAR-SLUG (Caliroa cerasi) - UTAH - Damaging foliage of ornamental hawthorn at Heber, Wasatch County, and Salt Lake City, Salt Lake County. (Knowlton). TWO-SPOTTED SPIDER MITE (Tetranychus telarius) - NORTH DAKOTA - Light on juniper and arborvitae in nurseries inspected in southeastern area. (N. D. Ins. Sur.). INSECTS AFFECTING MAN AND ANIMALS STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST During the period August 10-16, a total of 39,669,606 sterile flies was released over an area of 63,000 square miles. Release rate was 400 per square mile, with some areas in southern Texas receiving up to 800 sterile flies per square mile. A total of 1,363 screw-worm cases was reported during the period. New counties reporting Sscrew-worm cases included: TEXAS - Gaines, Oldham and Roberts; OKLAHOMA - Sequoyah and McIntosh. (Anim. Dis. Erad. Div.). iB ee ex = y - eee c eee Sek anes (cs foe ae a! igs ES Teens is i oe al et se een, i Sons 2 oS Coe Se === CEOUGe ce =5 ee : GOUEL oC oes ieee ee oe ee toes ae Bey ae Y/ Be 277 Ne Caw ele CF ee Ll, VY, aL ee A > mene oe ove Uy 7 Sae5 Logs Vy YW UY yt ae LM ig Ca oe al a Serica By, pis es Ae dig yi S| eal Eee i | Ne “MY, Z yy, eS ‘ x Wf, Lig ounti le} in \E ] say Ml oes rere: fae eates Va: New counties infested during Wp period August 10-16 :; Counties previously reported infested = Os = MOSQUITOES - MARYLAND - Aedes spp. light to date on Eastern Shore. (U. Md., Ent. Dept.). MINNESOTA - During period August 12-18, total of 20,800 mosquitoes taken in light traps, compared with 57,000 previous period. Aedes vexans females comprised 75 percent of collection. In daytime biting collections, 76 percent of 1,968 specimens taken were A. vexans and 16 percent Aedes trivittatus; 10 species were taken. Of 1,968 specimens, only 3 were other than Aedes. In nighttime biting collections, 70 percent were Aedes vexans. Of 1,657 larval collections ,36 percent contained Aedes vexans, 15 percent Culex restuans, 12 percent Culex tarsalis, 38 percent C. territans, 8 percent C. pipiens, 12 percent Culiseta inornata and 9 percent Culiseta minnesotae. (Minn. Ins. Rpt.). UTAH - Various species moderately troublesome about most communities in Uintah, Duchesne, Wasatch and Summit Counties, as well as along rivers and streams. Annoyance continues in many parts of State. Total of 27,500 acres treated in Weber County to date, compared with 10,400 acres at same time in 1961. Culex tarsalis, Culiseta inornata, Aedes nigromaculis and Aedes dorsalis most important species. (Fronk, Knowlton). TEXAS - Aedes sollicitans and Psorophora confinnis at intolerable levels throughout Jefferson County during first half of July. A. sollicitans reached peak of 50 per trap night in north Beaumont, a point 36 miles from Gulf of Mexico; this is not considered normal population for Beaumont area. Large numbers of P. confinnis larvae were taken in nearby salt marshes. Association of larvae of Psorophora ciliata, P. confinnis, Aedes taeniorhynchus and A. sollicitans in brackish water breeding areas not uncommon in district. There is apparently sufficient salt available throughout county after a tropical storm to support A. sollicitans, as the species has been found breeding in cemetery vases approximately 21 miles inland from the Gulf. Last brood of mosquitoes in nearby marshes in pupalstage July 3. There has been almost no trouble in Jefferson County since that flight was controlled. One specimen of Uranotaenia sapphirina has been taken this year. (Jefferson Co. Mosq. Cont. Comm., July Rpt.). FACE FLY (Musca autumnalis) -— MARYLAND - Averaged 12 per head in 8 dairy herds in Frederick County and 19 per head in 8 dairy herds in Howard County. (U. Md., Ent. Dept.). NORTH CAROLINA —- Counts per animal averaged 25 on cows in Haywood County, 15 in Buncombe County, and 4 on most herds in Henderson County. However, one herd of 24 animals near Hendersonville averaged 25 per animal. Averaged 7 per animal on a herd in northeastern Transylvania County; only 1-2 per animal found on small groups of cows near Sylva, Jackson County. Cattle in McDowell and Burke Counties had only an occasional fly on face that might have been this species; few collected were not this species. However, this pest was previously determined from these counties in late June 1961. (Mount, Axtell). MISSOURI - Ranged 0-25 per animal in north central area; ranged 1.5-5 per animal on dairy cattle in same area. (Munson, Thomas, Wood). ILLINOIS - Extensive survey conducted in 13 southern counties to determine any migration of this species during season; examination of 44 herds of cattle and horses negative. Examination of herd farther north, and known to be infested during fall of 1961, had 0-10 flies per face (average 5.7); two-thirds M. autumnalis. This species ranged 0-40 (averaged 13.3) per face on 4 cattle herds in west-southwest district. (Ill. Ins. Rpt.). WISCONSIN —- Reports from Iowa, Grant and Dunn Counties indicate increases in pink eye and blindness in cattle. Incidence reportedly attributed to this fly. (Wis. Ins. Sur.). COLORADO - Comprised 0-2 percent of flies on or about livestock in Weld and Morgan Counties; new counties. (Lawson, Jenkins). WYOMING - Adults found on Hereford cattle 5 miles south of Lusk, Niobrara County. This is a new county record. (Fullerton). HOUSE FLY (Musca domestica) - COLORADO - Numbers on and about livestock account for 90-95 percent of fly population in Weld and Morgan Counties. (Lawson, Jenkins). OKLAHOMA - Ranged up to 40 per Scudder grid in experimental areas around barns in Stillwater area, Payne County. (Okla. Coop. Sur.). HORN FLY (Haematobia irritans) - OKLAHOMA - Populations down on cattle checked in Payne, Noble and Pawnee Counties, north central; counts per animal 175 on yearling steers, 75-100 on mature cows and up to 700 on bulls. (Okla. Coop. Sur.). MARYLAND - Averaged 9 per head in 8 dairy herds in Howard County. (U. Md., Ent. = O72) = Dept.). ILLINOIS - Counts per animal ranged 0-500 (averaged less than 50) in southern district and 0-300 (average 65) in west-southwest district. (Ill. Ins. Rpt.). STABLE FLY (Stomoxys calcitrans) - MARYLAND - Averaged 4 per head in 8 dairy herds in Howard County. Troublesome to dogs in a kenrel in Worcester County. (U. Md., Ent. Dept.). ILLINOIS - Counts per animal ranged 0-16 (average 2.1) in southern area and 0-45 (average 15.5) in west-southwest district. (Ill. Ins. Rpt.). OKLAHOMA - Populations increasing slightly in Stillwater area, Payne County; range 3-4 per animal. (Okla. Coop. Sur.). COLORADO - Numbers account for 6-10 percent of fly population on or about livestock in Weld and Morgan Counties. (Lawson, Jenkins). TABANIDS — MINNESOTA - Deer flies reported very active in Willow River area, Pine County. (Minn. Ins. Rpt.). ILLINOIS - Counts per animal ranged 0-4 (average 0.3) in southern area and none observed in west-southwest district. (Ill. Ins. Rpt.). OKLAHOMA - Tabanus spp., mainly T. abactor, T. atratus and T. lineola complex, varied during week but generally averaged 1-2 per animal on cattle checked in Payne, Noble and Pawnee Counties. (Okla. Coop. Sur.). UTAH - Unspecified species annoying cattle and horses in Wasatch, Summit, Morgan, Daggett, Uintah and Duchesne Counties, but less numerous than few weeks ago. Hybomitra rhombica osburni numerous and annoying to campers in foothills and canyons of Mt. Nebo, Juab County, during late July and early August. Det. by Cl Bee Phases (Knowlton): FLIES - UTAH - Various species a problem about some restaurants, especially those located in vicinities of stockyards and cattle feeding yards. (Knowlton). ILLINOIS - Flies on faces of cattle and horses ranged 0-22 (averaged 1.05) per face in 13 southern counties; none face fly. Few herds with fair numbers on faces either near feed bunks or in areas where green corn stalks were being fed to cattle on pasture. (I11. Ins. Rpt.). FLEAS - RHODE ISLAND - Infestations of Ctenocephalides spp. in homes reported from Woonsocket, Providence County, and Warwick, Kent County. (Mathewson, Cartier). NEW JERSEY - Unspecified species continue troublesome in homes and yards. (Ins.-Dis. Newsltr., Aug. 21). WISCONSIN - Ctenocephalides spp. of concern in some areas. (Wis. Ins. Sur.). NEBRASKA - Ctenocephalides spp. causing considerable concern to pets and around homes in Lincoln, Lancaster County. (Bergman). HYMENOPTERONS - NEW JERSEY - Sphecius speciosus active in several areas and causing some concern to homeowners. (Ins.-Dis. Newsltr., Aug. 21). MARYLAND - Yellow jackets and hornets annoying many homeowners over State. (U. Md., Ent. Dept.). VIRGINIA - Vespa crabro germana nesting in inner wall of home in Poquoson, York County. (Amos, Aug. 6). . HOUSEHOLD AND STRUCTURAL INSECTS CRICKETS - MARYLAND - Gryllus spp. entering homes in Anne Arundel, Baltimore and Prince Georges Counties. (U. Md., Ent. Dept.). OHIO - Invasion of stores and residences in Columbus, Franklin County, by what is tentatively determined as Gryllus spp., reported August 20. Present in such numbers as to require 3 insecticide applications in downtown areas. (Shepeard). INDIANA - Nemobius spp. migrating in large numbers and especially attracted to lights. (Gould). MISSOURI - Large numbers of Nemobius fasciatus continue to be attracted to lights in central and northern areas; cauSing considerable concern to homeowners, motels, restaurants and service stations. (Munson, Thomas, Wood). ELM LEAF BEETLE (Galerucella xanthomelaena) - UTAH - Invading homes at Farmington . and elsewhere in Davis County. (Knowlton, Rogers). = 980 - STRAWBERRY ROOT WEEVIL (Brachyrhinus ovatus) - NORTH DAKOTA - Large numbers of adults creating a nuisance by entering homes in Several areas. Qe De Inse Sure A DARKLING BEETLE (Eleodes sp.) - NEVADA - Adults numerous and entering stores in Yerington, Lyon County. (Munk). OREGON FIR SAWYER (Monochamus oregonensis) - NORTH CAROLINA - Larvae badly damaged fir lumber recently imported from the West Coast. Det. by H. B. Moore. (Mount). A POWDER-POST BEETLE (Lyctus planicollis) - FLORIDA - Heavily infested mahogany wood baseboards at Sebring, Highlands County, August 17. (Fla. Coop. Sur., Hanlon). EARWIGS - NEW JERSEY - Unspecified species invading homes in several areas. (Ins.-Dis. Newsltr., Aug. 21). AN ANT (Lasius sp.) - OREGON - Emerged in and around homes in Portland area, Multonomah County. (Larson). STORED-PRODUCT INSECTS GRANARY WEEVIL (Sitophilus granarius) - WISCONSIN - Infestations reported in Calumet County. Wis. Ins. Sur. HIDE BEETLE (Dermestes maculatus) -—- NORTH CAROLINA - Larvae infested some cured hams in Orange County; det. by H. B. Moore. (Mount). GRAIN MITE (Acarus siro) - PENNSYLVANIA - Heavy in animal feed at Washington, Washington County. (Udine). BENEFICIAL INSECTS LADY BEETLES - ARKANSAS - Scarce in soybeans in past but now increasing. (Ark. Ins. Sur.). MARYLAND - Very numerous on tobacco infested with Myzus persicae at Upper Marlboro, Prince Georges County. (U. Md., Ent. Dept.). Beneficial Insects in South Dakota —- Populations of LADY BEETLES, NABIDS, and LACEWINGS generally high throughout southeastern area; combined counts for all beneficial insects ranged 2-15 per 10 sweeps in alfalfa. WN. De Inse surly A SCOLIID (Scolia dubia) - VIRGINIA - Common in many parts of State, most commonly observed active over lawns in search of white grubs. Noted in Amelia, Amelia County, August 14 (Tarpley, Homes); Standardsville,Greene County, August 22 (Tarpley); Lawrenceville, Brunswick County, August 18 (Tarpley, Maclin); and Pulaski, Pulaski County, August 21 (Tarpley, Derting). MARYLAND - Adults observed over lawns in Harford and Prince Georges Counties. (U. Md., Ent. Dept.). MISCELLANEOUS INSECTS WHITE-FRINGED BEETLES (Graphognathus spp.) - OKLAHOMA - Railroad yards and sidings checked in Pottawatomie and Seminole Counties with negative results. (Okla, Coop. Sur., PPC). ARKANSAS - Light around residence in Burdette area, Mississippi County. (Ark. Ins. Sur.). FLORIDA - Collected on teaweed at Pensacola, Escambia County; this is a new township record. (Boyd, Peacock, Aug. 17). JAPANESE BEETLE (Popillia japonica) - FLORIDA - Collected in trap at Orlando, Orange County. (Avazian, Aug. 16). OKLAHOMA - Traps checked in Oklahoma and Lincoln Counties continue to give negative results. (Okla. Coop. Sur., PPC)». RHODE ISLAND - Adult populations generally declining. (Mathewson). = 981 = ASIATIC GARDEN BEETLE (Maladera castanea) - PENNSYLVANIA - Adults collected in light trap at Carlisle, Cumberland County. Det. by S. G. Gesell. (Maxwell, Aug. 8). See footnote on name change. RED-HUMPED CATERPILLAR (Schizura concinna) - IDAHO - Collected at 2 separate locations in Moscow, Latah County. (Portman). OTITID FLIES —- PENNSYLVANIA - McPhail traps in Philladelphia County on July 27 and in Erie County August 6 yielded specimens of Seioptera vibrans and Pseudotephritis metzi at both locations. Det. by E. U. Balsbaugh. (Kelly, Gunther). IMPORTED FIRE ANT (Solenopsis saevissima richteri) - FLORIDA - Collected at Tallahassee, Leon County (Miller, Aug. 8); St. Petersburg, Pinellas County (Carroll, Bingaman, Aug. 10); Lutz (August 16) and Tampa (August 17), Hills- borough County (Eberenz); Winter Haven, Polk County (Bacon, Aug. 15); and - Sanlando Springs, Seminole County (Crews, Aug. 15). SPHECID WASPS - NORTH CAROLINA - Trypoxylon clavatum and T. rubrocinctum collected in Caldwell County in early July. Det. by K. V. Krombein. (Mount). CORRECTIONS CEIR 12(33):915 - WHEAT HEAD ARMYWORM (Faronta diffusa) - NEBRASKA - Should be changed to read as follows: WHEAT HEAD ARMYWORM (Faronta diffusa) - NEBRASKA - Abundant on native grasses in Lincoln County. (Pruess). ARMYWORM (Pseudaletia unipuncta) - NEBRASKA - Unusually heavy flight, possibly due to low incidence of parasitism in first brood (only about 25 percent). (Pruess). CEIR 12(34) :960 - CORRECTIONS - CEIR 12(30):681 should read CEIR 12(30) :841. Pope, R. D. 1960. Ann. and Mag. Nat. Hist. Ser. 13, 3(33) :545-550. = 2 = LIGHT TRAP COLLECTIONS Pseud, Perid. Ostrinia lLaphyg. Prod. Protoparce Heliothis unip. Saucia nubilalis frug. ornith, sexta quing. zea vires, ARKANSAS Morrilton 8/9-22 31 13 ' 66 Kelso 8/16-22 68 il 372 Fayetteville 8/16-22 14 30 Little Rock 8/16-22 65 16 104 FLORIDA Gainesville 8/20 4 3 36 Quincy 8/19 2 4 2004) ILLINOIS (County) Champaign 8/17-23 214 12 32 57 34 ils} 57 INDIANA (Counties) Jasper 8/15-21 34 3 14 5 38 8 6 La Porte 8/14-21 alt 5 6 4 a Lawrence 8/14-20 12 il 14 6 4 5 Tippecanoe 8/16-23 25 1 4 20 3 4 Vanderburgh 8/16-22 33 ia “6 3 il 40 IOWA Ames 8/8-17 118 3 392 24 1 Columbus Jct. 8/8-12 110 3 582 Milford 8/11-17 5 2 36 Soldier 8/11-17 709 34 183 63 2 Hastings 8/11-17 289 12 26 50 2 Dubuque 8/11-17 160 5 100 4 i MARYLAND (County) Queen Annes 8/15-21 43 170 26 39 20 MINNESOTA Owatonna 8/15-22 18 378 4 Fergus Falls 8/7-21 38 12 Worthington 8/7-22 141 394 7 il Rochester 8/8-20 62 eee ll MISSISSIPPI *Stoneville 8/17-23 330 WAZ 242 52 1,249 aly MISSOURI Sikeston 8/16-22 Zl 1,069 342 NEBRASKA Lincoln 8/13-19 176 25 WF 2 2 2 Kearney 8/9, 13, 14 87 12 40 IS 3 5 i 3 4 McCook 8/8-10, 12,13 994 236 293 79 30 14 18 36 North Platte 8/9-15 544 67 95 6 6 7 4 NEW JERSEY (Counties) Cumberland 8/16, 20 26 4 iL 4 Burlington 8/16, 20 79 al 19 4 al Gloucester 8/16, 20 55 3 7 6 2 NORTH DAKOTA Williston 8/18-24 iy * Two traps - Stoneville. (Continued on page 983). - 983 - LIGHT TRAP COLLECTIONS (Continued) Pseud. Perid. Ostrinia Laphyg. Prod. Protoparce Heliothis unip. sSaucia nubilalis frug. ornith. sexta quinqg. zea vires. OHIO Wooster 8/15-23 12 7 SOUTH CAROLINA Charleston 8/20-26 38 50 73 38 298 i Clemson 8/18-24 122 8 PHI 105 2 167 il TEXAS *xBrownsville 8/10-23 45 16 2,249 178 39 8 428 734 Waco 8/18-24 59 63 84 1,285 6 WISCONSIN Salem 8/14-20 17 47 Janesville 8/14-20 49 119 Madison 8/15-22 82 th 126 2 Middleton 8/15-22 57 14 716 Mazomanie 8/14-20 39 3 190 1 De Forest 8/14-20 65 14 437 il Arlington 8/14-20 108 923 6 Columbus 8/14-20 51 183 Beaver Dam 8/14-20 193 280 5 Fox Lake 8/14-20 272 111 Darien 8/14-20 68 195 4 Wayne 8/14-20 56 6 Theresa 8/14=20 52 15 Nenno 8/14-20 97 29 1 Fond du Lac 8/14-20 51 16 Brandon 8/14-20 152 33 Cedar Grove 8/12-18 372 22 il Waldo 8/14-20 145 28 2 Rosendale 8/14-20 630 44 4 Ripon 8/14-20 111 13 * Six traps - Brownsville. Additional Light Trap Collection TEXAS (Brownsville, 8/10-23) - Pectinophora gossypiella - 2,033. - 984 - INTERCEPTIONS OF SPECIAL INTEREST AT U. S. PORTS OF ENTRY Some important interceptions that were reported June 30, 1962, by the Plant Quarantine Division, ARS, USDA, follow. These reports are based on identifica- tions received from Federal taxonomists at the U. S. National Museum during the month, but do include any of special interest from recent months that were not previously reported. GOLDEN NEMATODE (Heterodera rostochiensis Woll.) 2 times; once in ship's stores at Miami, Florida, and once at Boston, Massachusetts, in plane's baggage. A STENOMID (Stenoma catenifer Wlsm.) in baggage at San Pedro, California. SOUTH AMERICAN POTATO WEEVILS (Premnotrypes spp., or probably species of this genus) in baggage at Miami, Florida, in baggage destined for Florida and New Jersey. WHITE GARDEN SNAIL (Theba pisana (Muller)) with general cargo destined for Virginia at Norfolk, Virginia. CITRUS BLACKFLY (Aleurocanthus woglumi Ashby) on citrus leaves in baggage at Eagle Pass, Texas. AN OLETHREUTID MOTH (Laspeyresia splendana (Hbn.)) (a pest of chestnuts in Europe) in chestnut seeds in mail consigned to Illinois at Hoboken, New Jersey. EUROPEAN CHERRY FRUIT FLY (Rhagoletis cerasi (L.)) once in baggage and twice in stores at New York, New York. ORIENTAL FRUIT FLY (Dacus dorsalis Hend.) twice in baggage at Honolulu, Hawaii. MEXICAN FRUIT FLY (Anastrepha ludens (Loew), or probably this species) 25 times; at Tampa, Florida, one time; at Chicago, Illinois, one time; at Brownsville, Texas, 3 times; at Eagle Pass, Texas, 2 times; at Laredo, Texas, 10 times; at El Paso, Texas, 2 times; at Nogales, Arizona, 3 times; and San Ysidro, California, SH tlmes. MEDITERRANEAN FRUIT FLY (Ceratitis capitata (Wied.), or probably this species) 19 times; at Miami, Florida, 3 times; at Tampa, Florida, 2 times; at New York, New York, 11 times; and at Honolulu, Hawaii, 3 times. KHAPRA BEETLE (Trogoderma granarium Everts) 19 times; at Honolulu, Hawaii, one time; at San Pedro, California, one time; at Houston, Texas, 3 times; at Savannah, Georgia, 2 times; at Charleston, South Carolina, one time; at Wilmington, North Carolina, one time; and at New York, New York, 10 times. = 8S = INSECTS NOT KNOWN TO OCCUR IN THE UNITED STATES LUCERNE BEETLE (Phytodecta fornicatus Briggem.) Economic Importance: This chrysomelid is an important pest of alfalfa in parts of middle Europe. Considerable damage has been recorded in Bulgaria, Romania and Yugoslavia. Larvae have caused complete loss of the crop on occasion in this area of Europe. Adults feed on the leaves of alfalfa and black medic, and larvae on leaves, petioles and young stems. Leaf-feeding symptoms differ somewhat in that the larvae cause a "ragging" appearance, whereas the adults more deeply scallop the leaves. Both stages perforate the leaves somewhat, but adults more so. Petioles and young stems may be cut entirely through by the larvae. Hosts: Alfalfa and black medic. Distribution: Occurs throughout most of middle Europe and parts of the Near East (Germany, Poland, Czechoslovakia, Austria, Hungary, Italy, Yugoslavia, Greece, Romania, Bulgaria, Turkey, Syria, Iraq and the U.S.S.R.). The species has also been recorded in-the literature from England and North Africa. potty Ed General Distribution of Phytodecta fornicatus Bruggem. Life History and Habits: The biology as recorded in Bulgaria was as follows: Adults overwintered in the soil. Emergence began when the soil temperature rose to 50-53.6° F. and lasted 15 to 20 days. After maturation feeding for 2-5 days, adults mated and laid eggs in batches of 2-22 on lower surface of the leaves. Oviposition lasted 38-41 days. In the laboratory, females laid about 165 eggs during a period of 1 to 12 days - 76 percent on the first day. Average adult longevity was 15-16 days for males and 41 days for females. Eggs hatched in about 5 days at 73.4° F. and 9 days at 57.2° F. Larval development required 15-23 days, depending on the temperature, and pupation was completed within 3 weeks, but most of the adults remained in the soil and penetrated deeper to hibernate. Some, however, came to the surface, usually in the middle of June, fed on the alfalfa for 2-3 weeks, then reentered the soil for hibernation. There was only one generation a year. (Chrysomelidae, Coleoptera) No. 147 of Series = 986 — Studies in Romania indicated the following additional information: Adults were observed as early as March on alfalfa tips in warm weather. Also, the number of eggs oviposited ranged from 61 to over 1,000, with most females continuing to Oviposit until they died. Egg and larval stages lasted 6-9 and 14-22 days at an average temperature of 69.17° F., the latter period including a prepupal stage of 2-6 days. Pupation occurred in the soil at a depth of 2 inches and adults emerged after 5-9 days at the same temperature. During hot weather, young adults reentered the soil after a short period of feeding and came to the surface only occasionally and for short periods before hibernation. Description: EGG - Newly laid egg yellowish-white or greenish-white, elongate, oval; shell reticulate and shiny. Older egg becomes transparent in appearance, with dark zone at anterior end. Egg changes shape markedly on fourth day, with a protrusion appearing just before hatching, LARVA - Newly hatched larva nearly white, but turns dark shortly. Length 1.5 to 2-3 mm. Full-grown larva (fourth stage) yellowish with black spots; head black; prothorax dorsally with black plates divided by midline; meso- and metathorax with 2 rows of transverse dark sclerites (4 in each row) dorsally; first 6 abdominal segments also with 2 trans- verse rows of sclerites (6 in each row) dorsally; 7th abdominal segment with 2 thin, transversely elongate sclerites, flanked by smaller ones, dorsally; 8th abdominal segment with one transverse, elongate sclerite dorsally. (See illustra- tions below). Ventral surface of full-grown larva as illustrated below. Length 8-9 mm. PUPA - Yellowish-orange, 6-7.5 mm. long. ADULT - Young adult uniformly yellow, with eyes and ends of appendages dark. Nine to fourteen-day-old adults dark yellow dorsally, with spots on thorax and elytra black; dark yellow with reddish tinge ventrally. (Prepared in Survey and Detection Operations in cooperation with other ARS agencies). CEIR 12(35) :8-31-62. Adult of Phytodecta fornicatus Bruggem. Larva of Phytodecta fornicatus Briggem, (Lateral and Ventral Views) Major references: 1. Knechtel, W. and Hrisafi, C. 1939. In VII Internatl. Kong. f. Entomologie, Verhand. Band 4:2533-2543. In Ger. 2. Statelov, N. 1936. Minist. Landw. Staatsdom Pub. No. 63, 44 pp., Sofia. In Bulg. 3. Vukasovic, P1937. Arch. Minist. Poloprivr. 4(7), (47 pp. din. reprint). In Serbian. 4. Voukassovitch, H. and Voukassovitch, P. 1930. Rev. de Path. Veget. et d'Ent. Agr. 17(10) :413-418. 5. Weise, J. 1916. In Coleopterorum Catalogus (W. Junk, Ed. by S. Schenkling) Pt. 68 Chrysomelidae: 12, Chryso- melinae. p. 182. Figures (except map) from Knechtel, W. and Hrisafi, C.