Abstract
The increasing pests cause concern since they impact production, and when uncontrolled, they lead to huge economic losses. Among major pest Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) and Heliothis virescens (Fabricius) (Lepidoptera: Noctuidae), are considered important because they attack crops like corn, cotton and tomatoes. Among the various systems used in biological pest contro…