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BENEFICIAL INSECTS 



A BRACONID ( Lysiphlebus testaceipes ) - OKLAHOMA - Increasing rapidly on sorghum 

 infested by Schizaphis graminuin (greenbug) in Texas County; parasitism 2-10 per- 

 cent in many fields, up to 60 percent in one field. L. testaceipes parasitized 10 

 percent of aphid (probably Aphis illinoisensis (grapevine aphid)) infesting grape- 

 vines in Mayes County. (Okla! CoopT Sur . ) . 



LADY BEETLES - OKLAHOMA - Hippodamia convergens (convergent lady beetle) common 

 in aphid-infested sorghum in Texas County. Averaged 1 or more egg masses per 

 plant in most fields. Adults of H. convergens and Coleomagilla maculata moderate 

 in most soybean fields in Wagoner and Muskogee Counties . (Ok la. Coop. Sur.). 



MELYRID BEETLES ( Collops spp.) - ARIZONA - Adults averaged 100 per 100 sweeps of 

 alfalfa at Casa Grande, Pinal County. (Ariz. Coop. Sur.). 



FEDERAL AND STATE PLANT PROTECTION PROGRAMS 



CATTLE TICKS ( Boophilus spp.) - TEXAS - Total of 100 B. annulatus (cattle tick) 

 and B. microplus (southern cattle tick) males, females, and nymphs identified 

 from~bovine and equine hosts in Cameron and Webb Counties during period July 1-18. 

 (Anim. Health Div.) . 



GRASSHOPPERS - IDAHO - Three thin flights of Melanoplus sanguinipes observed 

 moving to higher elevation in Lewiston area of Nez Perce County. About 58,000 

 acres sprayed in Magic Valley area. (Portman) . NEVADA - Oedaleonotus enigma 

 ranged 15-20 per square yard on 1,000 acres of rangeland in Horse Creek area near 

 Orovada , Humboldt County. M. bivi tta tus and M. sanguinipes ranged 8-12 per square 

 yard on 250 acres of alfalfa near Battle Mountain, Lander County. (Rowe) . UTAH - 

 Unspecified adults and nymphs moving from foothills and other range lands into 

 crops and home gardens along "Wasatch front" in Box Elder, Cache, Davis, Weber, 

 and Salt Lake Counties. (Knowlton et al.). Heavy population damaged alfalfa field 

 at Logan, Cache County. Adults, mostly M. sanguinipes , ranged 20-50 per square 

 yard in margins of alfalfa at Richmond. (Knowlton). Camnula pellucida threatening 

 crops in Manti and Ephraim area and unspecified species moving from range into 

 crops in Wales area of Sanpete County. Damaged 0.50 acre of raspberries at Ephraim. 

 (Herring) . NEW MEXICO - Grasshoppers ranged 5-15 per 25 sweeps in Valencia County 

 alfalfa. (Heninger) . 



OKLAHOMA - By mid-July, grasshoppers 90 percent adults in most areas, some egg 

 deposition underway. In panhandle counties, many third and fourth instars still 

 present week of July 19. Parasites and predators, mainly red mites and robber 

 flies, noted. Cooperative control programs involving 73,355 acres of grassland in 

 Carter, Jefferson, Love, and Ellis Counties completed in July; results ranged from 

 90-95 percent kill in short grass to 75-80 percent kill in rough, weedy, heavy 

 vegetation areas. (Okla. Coop. Sur.). NEBRASKA - Melanoplus spp. ranged 15-20 per 

 square yard in roadside ditches in Otoe County. Scattered soybean fields with out- 

 side 12 rows showing moderate to heavy defoliation. (Berogan) . 



SOUTH DAKOTA - Grasshoppers damaged crops in western Lawrence and Meade Counties. 

 Counts per square yard in alfalfa near Piedmont, Meade County, ranged 5-8 in 

 fields and 8-10 in borders. Population about 50 percent M. bivi ttatus adults and 

 50 percent M. f emurrubrum nymphs. (Jones). Grasshoppers damaged 200 acres of 

 wheat and alfalfa west of Spearfish, Lawrence County; ranged 20-30 per square 

 yard in fields. (Rezek) . Up to 40 per square yard in margins in Sanborn County, 

 30 in Brown County; populations spotty in both counties and light to moderate in 

 areas. Infestations generally moderate in Spink, Faulk, and Davison Counties, 

 light in Edmunds, McPherson, and Hanson Counties. M. bivittatus and M. differen - 

 tials dominant in areas of heavy infestation; M. f emurrubrum common where 

 infestations light. (Fransen) . NORTH DAKOTA - Grasshopper adults economic in 

 southeast Cass and northeast Sargent Counties; light in other parts of Cass and 

 Sargent Counties and in Dickey, Emmons, and Burleigh Counties. M. bivittatus 

 dominant in most economic areas. Controls still underway in Cass County to pro- 



