. Cooperative economic insect report. Beneficial insects; Insect pests. - 1040 - STATUS OF THE SCREW-WORM (Cocliliomyia hominivorax) IN THE SOUTHWEST During the period August 31 - September 6, a total of 52,174,250 sterile flies was released over an area of 63,000 square miles in Texas, with 7,000 square miles covered in average overwintering area of New Mexico. Release rate was 400 sterile flies per square mile, with some areas in southern Texas receiving up to 800 sterile flies per square mile. A total of 772 screw-worm cases was reported during the period. New counties reporting screw-worm
. Cooperative economic insect report. Beneficial insects; Insect pests. - 1040 - STATUS OF THE SCREW-WORM (Cocliliomyia hominivorax) IN THE SOUTHWEST During the period August 31 - September 6, a total of 52,174,250 sterile flies was released over an area of 63,000 square miles in Texas, with 7,000 square miles covered in average overwintering area of New Mexico. Release rate was 400 sterile flies per square mile, with some areas in southern Texas receiving up to 800 sterile flies per square mile. A total of 772 screw-worm cases was reported during the period. New counties reporting screw-worm infestations were Torrance in NEW MEXICO and Kay in OKLAHOMA (Anim. Dis. Erad. Div.).. HOUSE FLY (Musca domestica) - OKLAHOMA - Populations increased in Stillwater area, Payne County^ (Okla. Coop. Sur.). ALABAMA - Populations in Auburn, Lee County, extremely high for time of year, (Buttram). HORN FLY (Haematobia irritans) - OKLAHOMA - Populations increased appreciably in Stillwater area, Payne Coionty; counts per head were 1,200 on bulls, 400-450 on cows and 400 on steers. Ranged 150-600 per head in northeastern area. (Okla. Coop. Sur.). NEBRASKA - Counts approxiamtely 25 per animal in Colfax County. (Bergman). OHIO - Ranged 50-200 per Holstein heifer in Erie County. Populations appeared moderate in Seneca and Wood Counties. (Lyon). A TABANID (Tabanus laticeps) - CALIFORNIA - Medium and causing considerable irritation to ranch cows in Lincoln, Placer County. (Cal. Coop. Rpt.). BLOODSUCKING CONENOSE (Triatoma protracta) - CALIFORNIA - Population heavy and invading ranch residence in Covelo, Mendocino County. Occupants bitten by this pest severely affected. (Cal. Coop. Rpt., Sept. 7). WHEEL BUG (Arilus cristatus) - VIRGINIA - Nymph collected at Fincastle, Botetourt County; caused pain and swelling to person bit. (Tarpley, Boitnott, Sept. 5). A REDUVIID (Rasahus thoracicus) - CALIFORNIA - Considerable numbers occurring about packing sheds where lights burning at night. Considerabl
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