Field Response of Male Heliothis virescens to Pheromonal Stimuli and Traps

The tobacco budworm, Heliothis virescens (F.), has become an increasingly important pest of cotton and other crops as the range of the species and its resistance to pesticides have increased. These facts plus public concern for pollution of the environment and the need of farmers for methods of monitoring populations of the budworm so controls can be applied at the proper time have increased the need for information concerning the efficiencies of insect traps and attractive baits associated with the use of traps.