219 

 weevils into the treated fields. 



423. ; Hanson, R. D.; and Bull, D. L. 1978. Laboratory and field evalua- 

 tions of selected synthetic pyrethroids for cotton insect control. 

 Falia Entomol. Mex. 39-40: 66-67. (In Spanish, abstract only). 



Tests \.'ere conducted in the laboratory and greenhouse to evaluate the effective- 

 ness of several experimental synthetic pyrethroid insectides against the Cotton 

 boll weevil, Anthonomus grand is Boheman, and the tobacco budworm, Heliothis 

 virescens (F.). In addition, a late-season tests was conducted in small field 

 plots to compare the effectiveness of oil (cotton-seed and mineral oil) formu- 

 lations of FMC-33297 and a standard emulsifiable concentrate formulations of 

 the chemical for control of natural populations of boll weevils. Results of 

 these studies indicated the cottonseed oil formulation was most effective. 

 These findings were supported by the results of laboratory and greenhouse 

 experiments, which indicated that the inclusion of oil in a formulation 

 increased uptake by boll weevils exposed to treated surfaces and increased 

 both toxicity and residual activity of FMC-33297. 



424. Huddleston, E. W. ; Ashdown, D.; and Herzog, D. C. 1966. A comparison 

 of the effects of the 1964 and 1965 High Plains Boll Weevil Control 

 Program on population trends of non-target arthropods. Tex. Tech. Coll. 

 Entcfaol. Rep. 66-1, 20 pp. 



The High Plains Boll Weevil Control Program, initiated in the fall of 1964, 

 was continued in the fall of 1965. Direct effects of the use of ULV Malathion 

 on non-target arthropods were studied during and Imm ediately after the conclu- 

 sion of the 1964 program. In addition to an evaluation of the direct effects 

 of the 1965 control operations, population trends of the indicator arthropods 

 were followed throughout the 1965 growing season to determine the "carry-over" 

 Effects of the 1964 program of the preceeding fall. The indicator organisms 





