Field Tests of a Semiochemical-Based Toxic Bait for Suppression of Corn Rootworm Beetles (Coleoptera: Chrysomelidae)
Authors: LANCE, D. R.; SUTTER, C. R.
Source: Journal of Economic Entomology, Volume 85, Number 3, June 1992 , pp. 967-973(7)
Publisher: Entomological Society of America
Abstract:A semiochemical-based toxic bait for adult Diabrotica virgifera virgifera LeConte and D. barberi Smith and Lawrence was broadcast over three plots (1-3 ha) of maize, Zea mays L. The bait contained an insecticide (0.3% carbaryl), a feeding stimulant (cucurbitacin), and several non pheromonal volatile attractants (totaling 0.5% of the formulation) in a dry, bran-based carrier. Bait was applied at 7-14 kg/ha (20-40 g [A1] carbaryl/ha). Relative to paired plots that were not treated with bait, numbers of D. v. virgifera and D. barberi counted on maize plants were reduced 77-85% and 55-92%, respectively, 48 h after bait applications. Likewise, relative numbers of D. v. virgifera and D. barberi captured on unbaited yellow sticky traps declined 58-91% and 67-88%, respectively, after applications of bait. Numbers of dead beetles on the ground 24 or 48 h after applications were roughly comparable to reductions in numbers of live beetles counted on plants. Activity of the bait was short-lived in the field, and populations of Diabrotica beetles in treated plots generally returned to near pretreatment levels within 1-2 wk after applications of bait. Although formulations must be improved to enhance activity and longevity, results of this study indicate that semiochemical-based baits for Diabrotica beetles are a potential tool for greatly reducing the amount of insecticide applied in maize production systems.
Document Type: Research Article
Publication date: June 1, 1992
- 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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