Local phenology models for the European corn borer are useful in predicting the second generation. A blacklight trap to detect moths in or near the pepper field should be operating before the second-generation European corn borer is anticipated. Insects collected in the trap should be removed, and European corn borers counted daily. Thresholds for treatment consist of four or more female moths per blacklight trap per night for three consecutive nights. It also is useful to inspect nearby corn for egg masses or whorl feeding. The results of research in Iowa suggest that nearby late-planted sweet corn can serve as a trap crop, resulting in fewer egg masses being deposited on peppers. Because of the low threshold of infestation tolerated for peppers for processing, it is impractical to sample pepper plants for egg masses or larval stages.