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SOUTH DAKOTA - Peak populations annoying cattle. (Jones). IDAHO - Adults averaged 

 35 per face on 1,700 head of cattle in Porthill area of Boundary County. Pinkeye 

 spreading in cattle. (Studer) . 



HOUSE FLY ( Musca domestica ) - INDIANA - Adults heavy in stables where manure 

 permitted to accumulate in Tippecanoe County. (Dobson) . OKLAHOMA - Ranged up to 

 14 per Scudder grid in untreated barns in Payne County, most counts averaged 7 

 or less per grid. (Okla. Coop. Sur.). 



HORN FLY ( Haematobia irritans ) - FLORIDA - Averaged 80 per animal on beef cattle 

 at Williston, Levy County. THead) . Unusually light for time of year. (Butler) . 

 MISSISSIPPI - Average counts per animal by county: Holmes 260 on 300 head; Hinds 

 18 on 211 head; Monroe 75 on 500 head; Washington 20 on 250 head. (Sartor). 

 MARYLAND - Ranged 60-200 per head on dairy and beef cattle in Dorchester County. 

 Below normal in Frederick, Baltimore, Carroll, Howard, Montgomery, and Washington 

 Counties where counts ranged 0-20 per head. Most central county herdsmen applying 

 controls to prevent buildup. (U. Md . , Ent. Dept.). VERMONT - Continues to increase. 

 (Nielsen) . SOUTH DAKOTA - Populations at peak and annoying cattle. (Jones) . 

 WYOMING - Ranged 30-40 per side on cattle west of Laramie, Albany County. (Spack- 

 man) . IDAHO - Averaged 350 per side on 300 head of cattle in Porthill area of 

 Boundary County. (Studer). UTAH - Heavy on some Washington County cattle herds. 

 (Huber) . Many small herds in northern areas apparently treated. (Knowlton) . 

 OKLAHOMA - Ranged 200-300 per head on cattle in Payne County. Heavy in Cotton 

 County, moderate in Cleveland and Atoka Counties. (Okla. Coop. Sur.). 



STABLE FLY ( Stomoxys calcitrans ) - WISCONSIN - Severe annoyance to cattle reported 

 in Rock, Calumet, Sauk, and Iowa Counties. (Wis. Ins. Sur.). MARYLAND - Ranged 

 5-25 per head of livestock in central area. Controls applied in all areas. (U. 

 Md. , Ent. Dept.) . 



MOSQUITOES - MARYLAND - Aedes abserratus collected April 30, 1971, near Fingel, 

 Garrett County, by W.E. Bickley. Also collected May 5, 1971, at same location by 

 S.P. Joseph and J. Mallack. Determined by W.E. Bickley. This is a new State 

 record. Larvae found in cranberry swamp in association with A. canadensis . (U. Md . , 

 Ent. Dept.). MICHIGAN - Snow pool mosquitoes still most serious pests in State 

 parks but collections indicate other species becoming numerous and can be expected 

 to be increasingly important through rest of summer. (Newson) . WISCONSIN - Heavy 

 and localized near permanent wetlands in all areas of State. A. cinereus remains 

 dominant biter at sites checked. Heavy rainfall in some areas and dry conditions in 

 others largely responsible for considerable variation in populations among coun- 

 ties. (Wis. Ins. Sur.), MINNESOTA - A. vexans in 431 of 625 larval collections, 

 Culex tarsalis in 73. A. vexans dominant in evening bite collections; accounted for 

 58 percent of daytime collections. Light trap catches totaled 6,984 females; 77 

 percent A. vexans , 13 percent Coquillettidia per turbans , and 1 percent Culex 

 tarsalis . As predicted, trap catches increased substantially July 19 and 20. This 

 very heavy brood came from rains which fell July 7. Nuisance levels expected to 

 remain high 14 days. (Minn. Ins. Rpt.). SOUTH DAKOTA - Annoying cattle. (Jones). 

 WYOMING - Counts ranged 5-6 to as high as 225 per side on cattle west of Laramie, 

 Albany County. (Spackman) . UTAH - A. nigromaculis problem in parts of Salt Lake 

 City, South Salt Lake, and Magna areas of Salt Lake County. (Roberts). Culex 

 tarsalis increased rapidly, but populations of Aedes spp . low for Weber County. 

 (Frank) . Mosquitoes troublesome throughout Cache County (Knowlton), annoyance 

 moderate in Sanpete County (Herring) . Mosquitoes serious problem along Virgin 

 River, especially troublesome at Hurricane and Bloomington. (Huber). 



Venezuelan Equine Encephalomyelitis Outbreak in Texas - This virus disease affects 

 horses, mules, donkeys, and man. The mortality rate in horses is high but 

 relatively low in man. The disease in man is flu-like. This virus was first 

 recorded in 1938 from Venezuela, but has spread through Central America and into 

 Mexico where the current loss of horses is estimated in the thousands. Confirma- 

 tion of this virus in Texas was made during July 1971. It has been estimated that 

 about 1,200 horses had been lost as of July 22 in Texas. Federal and State 



