634 



DECIDUOUS FRUITS AND NUTS 



WALNUT HUSK FLY ( Rhagoletis completa ) - OREGON - Now established in western 

 Washington County. To- date total of 39 adults recovered in Frick traps located 

 in Scholls and Hazeldale areas. First adults trapped at these sites on 

 August 9. (Anderson, Penrose). 



FOREST AND SHADE TREES 



ELM LEAF BEETLE ( Pyrrhalta luteola ) - NEBRASKA - One of heaviest second genera- 

 tions statewide on record. (Kei th) . 



VARIABLE OAK LEAF CATERPILLAR ( He terocampa manteo ) - NORTH DAKOTA - Defolia- 

 tion heavy in Fort Totten area of Benson County. Several areas of basswood, oak, 

 and elm trees 100 percent defoliated. Larvae ranged 0.5-1.5 inches long with 

 most larvae nearly full grown. In Killdeer Mountain area in Dunn County, 

 defoliation not as severe. Birch and buroak defoliated in this area. Paper birch 

 trees severely defoliated in 1970 did not leaf out completely in 1971. 

 (Brandvik) . 



LOCUST LEAF MINER ( Xenochalepus dorsalis ) - KENTUCKY - Infestation as high as 90 

 percent in Barren, Hardin, Nelson and Warren Counties locust. (Barnett). 



MAN AND ANIMALS 



HORN FLY ( Haema tobia irri tans ) - OHIO - Averaged 194 on backs of beef cattle in 

 Noble County . (Pra 1 1) . NEBRASKA - Averaged 500 per head on untreated range cattle 

 pastured near North Platte in Lincoln County. (Campbell). COLORADO - Increasing 

 on range cattle in eastern areas; up to 800 per animal noted. (Hantsbarger) . 

 OKLAHOMA - Ranged 300-350 per head on cattle in Payne County and 300-500 in 

 Marshall County. Heavy in Garvin and Garfield Counties and moderate in Craig and 

 Cleveland Counties. (Onla. Coop. Sur.). TEXAS - Heavy on cattle in Trans-Pecos 

 area. Heavy on cattle in Throckmorton, Stephens and Wilbarger Counties. 

 (Neeb , Boring) . 



STABLE FLY (Stomoxvs calcitran s) - WISCONSIN - Moderate in most counties. Severe 

 annoyance to cattle reported in Sauk and Calumet Counties. (Wis. Ins. Sur.). 

 NEBRASKA - Averaged 20 per leg on untreated feed lot animals near North Platte, 

 Lincoln County. (Campbell). 



MOSQUITOES - MINNESOTA - Light trap catch of females for week ending August 20 

 totaled 6,660, little more than 50 percent number taken week before. 

 Aedes vexans accounted for 85 percent of catch. A. vexans dominant in larval 

 and bite collections. Heavy rains which occurred August 18 in northern half of 

 district resulted in high population densities of larvae, especially in run-off 

 areas such as roadside ditches. Some increase in mosquito numbers in district 

 may occur, especially if winds from north (Minn. Pest Rpt.). 



FACE FLY ( Musca au tumna lis ) OHIO - Adults averaged 23.2 per head observed on 

 beef cattle in Noble County. (Pratt). WISCONSIN - Very heavy numbers annoying 

 cattle in portions of Sauk, Bayfield, Iron, Adams, and Chippewa Counties. 

 Reports indicate numbers low in other counties. (Wis. Ins. Sur.). NORTH DAKOTA - 

 Flies 20 per face noted on range cattle in Dunn County. Economic infestations not 

 widespread this season. (Brandvik). NEBRASKA - Ranged 15-20 per head on range 

 cattle near North Platte, Lincoln County. Treatment has had little effect in most 

 cases. (Campbell). 



BROWN RECLUSE SPIDER ( Loxosceles reclusa ) - ALABAMA - Total of 43 collected from 

 home at Ragland in St . Cla ir County . (Weaver) . 



