Field Evaluation of Diflubenzuron for Control of First- and Second- Generation European Corn Borer

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Two field experiments were conducted in Ankeny, Iowa, in 1976, to determine the effectiveness of diflubenzuron against Ostrinia nubilalis (Hübner). Corn plants treated with a 2% granular formulation of diflubenzuron had significantly fewer 1st-generation European corn borers and less stalk damage than plants treated with a 25% WP formulation. Application rates of 0.28, 0.56, and 1.12 kg AI/ha resulted in significantly fewer normal larvae and less stalk damage in treated plants than in untreated plants, and 2 applications resulted in significantly fewer larvae than 1 application.

In another field study, corn plants treated with a 2% G formulation or with a 25% WP formulation of diflubenzuron had equal numbers of 2nd-generation European corn borers. Application rates of 0.28, 0.56, and 1.12 kg AI/ha resulted in significantly fewer normal larvae in treated plants than in untreated plants.

Document Type: Research Article

Publication date: October 1, 1980

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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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