178 



343. , and Wolfenbarger, D. A. 198C. Evaluation of dif lubeuzuron for 

 boll V(^evil control in the Lower Ric Grande Valley of Texas. Southwest. 

 Entomol. Suppl 1: 27-30. 



Field experinents were conducted in 1976, 1977, and 1978 to evaluate diflu- 

 benzuron (N-[ [ (■4-chlorophenyl)aiiiino]carbonyl]-2, 6-dif luorobenzamide, Dirailin?, 

 111-6040) for boll weevil, Anthonomus grandis Boheman, control. Weevil reduc- 

 tion was shown but iiOt on a seasonal basis and yields were not affected. The 

 predator complex was not adversely affected. No phytotoxicity or fruiting 

 variations of the cotton were recorded due to treatment. 



344. Harp, S. J,, and Turner, V. V. 1976. Evaluation of various pheromone 

 trap designs for effectiveness in monitoring boll weevil populations. 

 In Detection and Management of the Boll Weevil With Pheromone. Tex. 

 Ar,ric. Exp. Stn. Res. Monogr. S, pp. 10-19. 



Sticky traps captured significantly greater numbers of weevils than nonsticky 

 live traps during peak response periods. Difference between sticky and live 

 traps when compared over the entire season, however, was not significant. 

 Sticky traps that had a large surface area captured significantly more 

 weevils regardless of shape. A live trap was constructed by placing a 

 Leggett trap top on a 1-gallon milk carton wing trap. This trap was _, 

 equal in trapping efficiency to the standard Leggett trap but *had advan- 

 tages of ease of handling and lower production costs. The standard Leggett 

 trap was superior to the Story survey traps in trapping efficiency because 

 it has a larger surface area. 



345. , and Turner, V. V. 1976. Field evaluation of chcn-icals for control 

 of insect pests on cotton in the Texas Blacklands. Southwest. ILUozwl. 

 1: S5-90. 



Insecticides were evaluated for control of cotton insect posts during the 



