48 



82. , and Brazzel, J. R. 1973. Ultra-low-volume insecticide trails for 

 diapause boll weevil control. J. Econ. Entomol. 66: 498-500. 



Trials with insecticides applied at ultra-low-volume rates were conducted 

 during 1968 and 1969 in Kent County, Texas, and during 1970 in Lawrence 

 County, Mississippi, to evaluate the effectiveness of 9 different insecticides 

 or formulations for diapause Anthonomus grandis Boheman control. Malathion 

 was used as the standard material since it is widely used in reproductive- 

 diapause boll weevil control programs. The differences between boll weevil 

 populations among treatments were not significant in the 1968 and 1970 trials. 

 In the 1969 test, azinphosmethyl ULV and LC applied undiluted reduced adult 

 populations significantly below that of other materials. 



83. , and Brazzel, J. R. 1975. Survival of boll weevils in bolls on 

 standing cotton stalks during the winter in southern Mississippi and 

 southeastern Louisiana. J. Ga. Entomol. Soc. lO: 99-105. 



Adult boll weevils were found to survive the winter in cotton bolls remaining 

 on undestroyed cotton stalks in southern Mississippi and Washington Parish., 

 Louisiana. Approximately two-thirds of the surviving boll weevils were in 

 firm diapause. The highest survival occurred in the southern portion of the 

 study area and generally decreased northward. 



84. ; Brazzel, J. R.; Helms, W. F.; Moritz, R. J.; and Edwards, R. R. 

 1973. Spring destruction of over^/intered boll weevils in west Texas 

 with wing traps. J. Econ. Entomol. 66: 507-510. 



A large-scale trapping experiment was conducted on 75,000 acres of cotton in the 

 rolling plains area of west Texas to determine if the wing trap baited with live 

 male Anthonomus grandis Boheman would be effective and feasible for use in large- 

 area boll weevil suppression programs. Wing traps were situated in or nenr the 

 hibernation quarters around each cotton field in the area. Use cf live male 



V 



--.r^-~it^w— — ■» I ■ ^ tj » »»» i , i-ii ■■■■ 111 ■ . .-. 



