- 723 - 



BIRCH SKELETONIZER (Bucculatrix canadensisella ) - PENNSYLVANIA - Heavy larval 

 and cocoon counts. Defoliation over 70 percent» mainly yellow birch in Warren 

 and Crawford Counties, September 23-30 „ (Adams). 



MAN AND ANIMALS 



SCREWWORM (Cochliomyia hominivorax ) - Total of 53 cases reported in U.S. 

 October 3-9, as follows: TEXAS - Brewster 2, Edwards 9, Kerr 1, Kinney 3, 

 Maverick 1, Val Verde 16, Pecos 1, Real 1, Terrell 1, Uvalde 3, Bowie 1, Concho 

 1, Coryell 1, Hamilton 2, Kimble 1, Lampasas 3, Mills 2, San Saba 1; ARKANSAS - 

 Little River 2; UNKNOWN ORIGIN - 1. Total of 441 laboratory-confirmed cases 

 reported in portion of Barrier Zone in Republic of Mexico as follows: Territorio 

 sur de Baja California 2, Sonora 7, Chihuahua 251, Coahuila 98, Nuevo Leon 21, 

 Tamaulipas 62. Total of 121 cases reported in Mexico south of Barrier Zone. 

 Barrier Zone is area where eradication operation underway to prevent establish- 

 ment of self-sustaining population in U.S. Sterile screwworm flies released: 

 Texas 63,682,000; Arkansas 2,670,000; Arizona 3,646,000; Mexico 80,106,000. 

 (Anim. Health Div.). 



STABLE FLY (Stomoxys calcitrans ) - FLORIDA - Averaged 2.6 per head on untreated 

 beef cattle at Quincy"^ (Head) . TEXAS - Still a problem in Archer County. 

 (Boring) . NORTH DAKOTA - Infestations continue annoying hogs in east-central 

 counties. Ranged up to 10 per square foot on pens, floors, and walls in hog barn 

 in Traill County. (Brandvik) . 



HORN FLY (Haematobia irritans) 



MARYLAND - Adults ranged 60-200 per head on 30 

 (U. Md., Ent. Dept.). FLORIDA - Averaged 1.4 



beef cattle in Wicomico County 



flies per head on untreated beef cattle at Quincy, Gadsden County. (Head) . 



TEXAS - Activity decreased on cattle in Archer County. (Boring) . 



HORSE BOT FLY (Gasterophilus intestinal is ) - MARYLAND - Adults averaged less than 

 1 (laying eggs) per 3 horses in several areas in Prince Georges and Worcester 

 Counties. (U. Md. , Ent. Dept.). 



FACE FLY (Musca autumnalis ) - UTAH - Collected at Morgan, Morgan County, August 

 5, for a new county record „ (Hanson, Knowlton) . 



A CATTLE TICK (Boophilus sp.) - TEXAS 

 Hidalgo County. (Anim. Health Div.). 



STORED PRODUCTS 



During September, one collection from 



BROWN SPIDER BEETLE (Ptinus clavipes ) - IOWA - Found in feed room in Clay County; 

 determined by H. Gunderson. This is a new county record. (Iowa Ins. Sur.). 



CADELLE (Tenebroides mauritanicus ) - COLORADO - Heavy in 1971 stored wheat in 

 grain bin near Haxtun, Phillips County. (Bird). 



BENEFICIAL INSECTS 



GREEN LACEWINGS (Chrysopa spp.) - ARIZONA - Averaged 18 per 100 sweeps of milo 

 in Maricopa County. (Ariz. Coop. Sur.). 



HONEY BEE (Apis mellifera ) - WEST VIRGINIA - Total of 1,116 colonies inspected 

 during September. Of these, 59 dead colonies and 12 diseased with American 

 foulbrood. Two of diseased colonies destroyed. (W. Va . Ins. Sur.). 



A EULOPHID WASP (Encarsia formosa ) - WASHINGTON - Natural population beginning 

 to control severe infestation of Trialeurodes vaporariorum (greenhouse whitef ly) 

 on tomatoes in greenhouse at Pullman, Whitman County. (Johansen) . 



MELYRID BEETLES (Collops spp.) - ARIZONA - Averaged 30 per 100 sweeps of alfalfa 

 in Maricopa County"! (Ariz. Coop. Sur.). 



