50 



86. Bradley, J. R., Jr.; Clower, D. F.; and Graves, J. B. 1968. Field studies 

 of sex attraction in the boll weevil. J. Econ. Entomol. 61: 1457-1458. 



Data from this study indicated that male boll weevils do emit an attractant or 

 assembling scent to which both sexes of its species respond under certain con- 

 ditions in the field. However, it :fs apparent from the small number of weevils 

 trapped that respon;^"e was KOt spectacular and conclusions cannot be formulated. 

 Response might have been greater had additional weevils been caged in traps, as 

 Hardee et al. reported significantly greater response in laboratory studies to 

 groups of 5, 10, and 25 <^. 



87. , and Phillips, J. R. 1978. Biology and population dynamics. In Boll 

 Weevil: Management Strategies. South. Coop. Ser. Bull. 228, pp. 15-22. 



The geographic range, host range, seasonal life history, diapause and population 

 dynamics of the boll weevil are presented. The ultimate goal from the view of 

 the entomologist, is accuracy in the prediction of insect numbers and damage 

 to cotton through integration of models of major cotton insect pests and cotton 

 production models. 



88. Brasher, C; Mullins, J. A.; and Bennett, S. E. 1971. Electrostatic ULV 

 spraying for control of the boll weevil. J. Econ. Entomol. 64: 1537-1541. 



The ULV spraying method was used in combination with charging electrostatic- spray 



particles in malathion for controlling Anthonomus grandis Boheman. Bioassay 

 methods were used in evaluation of application method and rates when applied on 

 cotton with both caged and live weevils attached to small picks (weevilpicks) 

 mounted on cotton plants. By using electrically charged particles and auxiliary 

 air, incorporated with ULV sprays system, about 90% control of boll weevil was 

 acheived with 1.25 lb of malathion per acre, almost equal effectiveness of con- 

 trol was achieved at one-half of the rate applied with the system. Removal of 

 the electrostatic charging component of the system reduced weevil mortality by 



