Abstract
Laboratory-reared Heliothis zea (Boddie) were used in the field and greenhouse to evaluate lines of sweet corn for corn earworm resistance. Unpollinated corn plants, infested in the fresh silk stage, had significantly less damage than pollinated plants infested when the silks were 7 days old. There was a tendency toward reduced corn earworm injury when husk tightness was artificially increased in corn plants.
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