Sex Pheromone Traps as a Means of Improving Control Programs for the Cotton Bollworm, Heliothis armigera (Lepidoptera: Noctuidae) 1

Abstract
Pheromone traps were reliable for detection and estimation of Heliothis armigera adult populations in cotton fields. An increase in male catches in traps was usually followed by an increase in larval density, but no correlation was found between the two. Pheromone traps may therefore serve as a warning device indicating potential attack, but larval counts are required before deciding on control procedures.