283 



537. , and Scott, W. P. 1976. Intensive sampling of twenty-five selected 

 fields in eradication and first buffer areas of the Pilot Boll Weevil 

 Eradication Experiment in 1973. Jn^ Boll Weevil Suppression, Management, 

 and Elimination Technology. Proceedings of a Conference, February 13-15, 

 1974, Memphis, Tennessee. U.S. Agric. Res. Serv. [Rep.) ARS-S-71, pp. 

 108-112. 



Twenty-five fields were selected in the eradication (zone I) and first buffer 

 (zone II) areas of the Pilot Boll Weevil Eradication Experiment (PBWEE) for 

 intensive sampling to detect the presence of low-density boll weevil popula- 

 tions in these fields from early June until the experiment was terminated August 

 10. The secondary objective of this study was to determine the relative abun- 

 dance of boll weevils in the trap crops and normal plantings as the season 

 progressed. 



538. ; Scott, W. P.; Shaunak, K. K.; Tingle, F. C; and Davich, T. B. 

 1972. A modified trapping system for suppressing low-density populations 

 of overwintered boll weevils. J. Econ. Entomol. 65: 1144-1147. 



Strips along 2 sides of cotton fields (about 10% of the field) were treated with 

 2 sidedress applications of aldicarb (2 lb per acre per application), and sterile 

 male Anthonomus grandis Boheman, with their wing covers glued together to restrict 

 movement, were released on adjacent untreated cotton plants to provide a natural 

 source of pheromone which would attract the overwintered native population to 

 the treated strips, where they would be killed. This system suppressed the popu- 

 lation, below damaging levels longer than standard sticky male-baited wing traps. 

 Also, it protected the natural predators and parasites of the bollworm, Helio- 

 this zea (Boddie) , in the untreated portion of the fields. Three of the 30 

 strips (about 4 acres of cotton) had to be treated to control bollworms after 

 the 2nd sidedresslng of aldicarb. The remainder of the fields did not require 

 insecticides for control of bollworms until late in the season. 



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