Studies on the European Corn Borer in Relation to Its Management on Snap Beans

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Egg masses or larvae of Ostrinia nubilalis (Hübner) were placed on snap beans to determine the effect of egg hatch at various days before harvest, On crop damage at harvest, and the length of time larvae feed externally on the plants before boring into stems and pods. When egg hatch occurred between 14 and 30 days before harvest, damaged stems and pods were found at harvest. Egg hatch at 7 and 35 days before harvest resulted in little crop damage. In laboratory and field studies of larval feeding behavior, larvae fed externally on the plants (primarily on the undersides of leaves) for 6 to 7 days and had completed the 1st or 2nd instar before they began to bore. Day degrees accumulations above 10°C were related to the interval between egg hatch and the onset of boring.

Document Type: Research Article

Publication date: June 1, 1982

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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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