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Corn Earworm (Lepidoptera: Noctuidae) in Idaho: Corn Kernel Compensation for Larval Damage

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Abstract:

Compensation by the corn plant, Zea mays (L.), after damage by the corn earworm, Heliothis zea (Boddie), was investigated by artificially infesting ears with 1st-instar larvae at and shortly after silking in 1980 and 1981. At maturity the cm2 of damage for each ear was measured, and the kernels from each were counted and weighed. Mean kernel weight for damaged ears was greater than that for undamaged controls. Regression of mean kernel weight on cm2 of damage was positive and highly significant. Different results for 1981 as compared with 1980 were ascribed to different field temperatures during the experiment each year.

Document Type: Research Article

Publication date: December 1, 1983

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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