Corn Earworm Management on Desert Produce

Abstract

Corn earworm (Helicoverpa zea) is a significant pest in desert vegetable production, particularly head lettuce. This guide outlines its biology, host range, and seasonal activity, highlighting the economic damage caused by larvae boring into lettuce heads. Management recommendations emphasize field monitoring, species-specific action thresholds, and the timely application of selective insecticides. Effective control relies on early detection, accurate species identification, and integrating cultural, biological, and chemical strategies to prevent yield loss and contamination.