Insect of the Week – Corn earworm

This week’s Insect of the Week is the corn earworm (Helicoverpa zea), an annual migrant from Mexico and southern USA. According to Wikipedia, the corn earworm is the second most important economic insect pest in North America. See information from the new Field Crop and Forage Pests and their Natural Enemies in Western Canada – Identification and Management Field Guide for identification, life cycle and control options (download links for field guide available on the Insect of the Week page). 

Jack Dykinga, USDA-Agricultural Research Service