Abstract
Strips along 2 sides of cotton fields (about 10% of the field) were treated with 2 sidedress applications of aldicarb (2 1b 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 over-wintered native population to the treated strips, where they would be killed. This system suppressed the population lation below damaging levels longer than standard sticky male-baited wing traps. Also, it protected the natural predators and parasites of the boll worm, Heliothis 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 side dressing of aldicarb. The remainder of the fields did not require insecticides for control of boll worms until late in the season.
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