The following materials are listed in order of usefulness in an IPM program, taking into account efficacy and impact on natural enemies. For field corn, popcorn, and field corn grown for seed and sweet corn. Apply before brown silk stage. Apply as a broadcast spray. This material may be less effective than broad-spectrum insecticides, but it does not destroy natural enemies of corn earworm.
Control is maximized by thorough coverage and by making applications when larvae are small.
Do not apply within this many days of harvest. Permit required from county agricultural commissioner for purchase or use. The Regents of the University of California. All rights reserved. For noncommercial purposes only, any Web site may link directly to this page or photo file.