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810. Scott, W. P. 1977. Suppression of boll weevils with diflubenzuron 

 applied at different rates and spray intervals. Miss. Agric. For. 

 Exp. Stn. Res. Rep. 3, 3 pp. 



Results indicate that diflubenzuron is most effective for boll weevil control 

 when applied two oz./acre at five- or seven-day intervals. However, tests 

 in larger fields are needed for more precise determination of optimum appli- 

 cation rates and intervals. .• 



811. , and Lloyd, E. P. 1975. Suppression of the boll weevil with ULV 

 azinphosmethyl and malathion and with LV methyl parathion. J. Econ. 

 Entomol. 68: 827-828. 



In small field plots, azinphosmethyl, malathion, and methyl parathion were 

 equally effective in controlling populations of Anthonomus grandis Boheman. 

 In a caged bioassay test, maximum boll weevil suppression was obtained with 

 azinphosmethyl, and residual control was 84% after 4 days. 



812. ; Lloyd, E. P.; Bryson, J. 0.; and Davich, T. B. 1974. Trap plots 

 for suppression of low density overwintered populations of boll 

 weevils. J. Econ. Entomol. 67: 281-283. 



When 4-, and 16-row trap plots were plaAted to cotton 2 weeks earlier than_ 

 joormal, both. types of plots ware equally effective in attractj-ng overwintered 

 Anthonomus grandis Boheman. When the plots were treated with aldicarb, a 

 large proportion of the boll weevils that emerged before the squaring of the 

 normal crop was attracted to the special plots and killed. When the plots 

 were baited with grandlure, they attracted more of the boll weevil populations 

 than plots that were not baited. Also, when trap plots were treated for con- 

 trol of Hellothis spp. 3 weeks after the sidedress application of aldicarb, 

 the remainder of the fields did not require treatment against this pest until 



