- 685 - 



WALKINGSTICK (Diapheromera femorata ) - OHIO - Heavy in and around Perry County 

 reclamation area. Infestation that defoliated 1,000+ acres in same area in 1970 

 caused extensive mortality to pure stands of black locust this year. (Guy, 

 Ehlers) . 



MAN AND ANIMALS 



SCREWWORM (Cochliomyia hominivorax ) - Total of 36 cases reported in U.S. 

 September 5-11 as follows: TEXAS - Brewster 1, Crockett 1, Dimmit 1, Edwards 2, 

 Hidalgo 1, Kinney 8, Maverick 1, Pecos 1, Presidio 1, Val Verde 11, Zavala 1, 

 Bowie 1, Lampasas 1, and San Saba 3; ARKANSAS - Miller 1. Reported 31 cases 

 September 12-18 as follows: TEXAS - Bexar 1, Brewster 1, Crockett 1, 

 Edwards 1, Kinney 3, Pecos 5, Presidio 1, Val Verde 6, Bowie 1, Gillespie 1, 

 Irion 2, Lampasas 3, San Saba 3, and Sutton 1; ARKANSAS - Little River 1. Total 

 of 354 cases reported in portion of Barrier Zone in Republic of Mexico as follows: 

 Sonora 9, Chihuahua 166, Coahuila 97, Nuevo Leon 30, Tamaulipas 52. Total of 64 

 cases reported in Mexico south of Barrier Zone. Barrier Zone is area where 

 eradication operation underway to prevent establishment of self-sustaining 

 population in U.S. Sterile screw-worm flies released: Texas 55,388,000; 

 Arkansas 1,960,000; Arizona 6,330,000; Mexico 91,228,000. (Anim. Health Div.). 



HORN FLY (Haematobia irritans ) - NEBRASKA - Averaged 400 per animal in Keith and 

 Lincoln Counties. (Campbell) . TEXAS - Heavy on cattle from several counties in 

 Trans-Pecos area. Heavy in Shackelford County. (Neeb, Boring). OKLAHOMA - Ranged 

 850-1,000 per head on cattle early in week in Payne County and 250-400 on same 

 cattle after cool weather. (Okla. Coop. Sur.). MISSISSIPPI - Light to moderate 

 (200-500 per animal) on cattle in Oktibbeha, Lee, and Monroe Counties. (Robinson). 



FACE FLY (Musca autumnalis ) - MARYLAND - Ranged 10-24 per head of cattle in 

 Montgomery, Prince Georges, and Howard Counties. (U. Md., Ent . Dept.). SOUTH 

 DAKOTA - Light on livestock checked at higher elevations in Black Hills in 

 Lawrence County. Averaged 2 per head of stock in southeast area near Nemo, 

 during week ending September 12. This is a new county record. (Jones). NEBRASKA - 

 Counts decreasing; averaged 5 per face near North Platte, Lincoln County. 

 (Campbell). UTAH - Taken at Scipio, Millard County, for a new County record. 

 (Hanson). Troublesome to horses and cattle in Cache, Box Elder, Weber, and Davis 

 County farm areas. (Knowlton) . 



STABLE FLY (Stomoxys calcitrans ) - WISCONSIN - Light to moderate annoyance to 

 cattle in Chippewa, Outagamie, Rock, and Calumet Counties. Severe annoyance in 

 portions of Columbia and Walworth Counties. (Wis. Ins. Sur.). NEBRASKA - Decreasing 

 in feedlots. Five per leg average. Lincoln County. (Campbell). 



MOSQUITOES - MINNESOTA - Collected 4,470 females during week ending September 10 

 in light traps. Aedes vexans accounted for 88 percent of total, Culiseta 

 morsitans 2.6 percent, C. inornata 1 percent. Anopheles walkeri 1.9, and Culex 

 tarsalii ~0.5. (Minn. Pest Rpt . ) . 



A SOFTBACKED TICK (Ornithodoros concanensis) - CALIFORNIA - Adults medium at 

 San Leandro, Alameda County. Bite very painful. (Cal. Coop. Rpt.). 



HOUSEHOLDS AND STRUCTURES 



A DRYWOOD TERMITE (Kalotermes approximatus ) - FLORIDA - Winged reproductives 

 present in dead, live oak stump (Quercu s virginiana ) at Gainesville, Alachua 

 County September 6. Earlier than usual October and November season for winged 

 reproductives. (Hetrick) . 



SMOKYBROWN COCKROACH ( Periplaneta fuliginosa ) - CALIFORNIA - Adults infested 

 residence at 20 per square yard in Concord, Contra Costa County. Not known to 

 occur in State other than this infestation, and eradication treatment underway. 

 (Cal. Coop. Rpt.). 



