Timing of Insecticide Applications for European Corn Borer1 Control! 2in Sweet Corn

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Abstract:

In 1964, observations of Ostrinia nubilalis (Hübner) egg laying on corn indicated that larvae from the eggs laid after 70% tassel-height ratio had been reached were those most responsible for infestation of the cars of sweet corn. It was postulated that chemical control to prevent ear infestation would have to be applied sometime after this stage of development. Plot experiments conducted in 1967. 1968, and 1970, in which chemical sprays were applied at various times, indicated this hypothesis to be true. Generally, those sprays applied during the silking period were as effective, or more effective, than any others in reducing injury to sweet corn cars.

Document Type: Research Article

Publication date: December 1, 1971

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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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