Moths are present from late August to mid-October. Most of the eggs are deposited from mid-September to early October. Eggs are laid singly or in groups in folded, dead leaves of grasses and weeds. They may also be deposited on corn plants. Moths are very attracted to orchardgrass and rye for egg deposition.
Winter is passed in the egg stage.
Most corn damage occurs from early to late June. A Major Pest in Reduced-Tillage Corn. See table 1. Recommended insecticides, rates, and restrictions for corn insects. Reentry dates are in days.