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Use of Chemical and Microbial Insecticides Against Pests of Common Beans

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Effects of chemical insecticides and a microbial insecticide on insect pests in relation to yield of common beans, Phaseolus vulgaris L., were investigated. Two preflowering applications of lindane or carbaryl, two postflowering applications of Bacillus thuringiensis Berliner (Bt), and a spray of lindane or carbaryl effectively controlled bean pests. Lindane or carbaryl applications controlled preflowering pests and flowerthrips, Taeniothrips sjostedti Trybom. Two applications of Bt during the postflowering growth stage of bean plants controlled the larvae of pod borers, Maruca testulalis (Geyer) and Heliothis armigera (Hübner) as effectively as two applications of lindane or carbaryl over the same period. Two applications of lindane during the prellowering and the late pod stages combined with two applications of Bt gave high seed yields of 1,308 and 1,307 kg/ha for 1982 and 1983 trials, respectively. Thus, Bt is as effective as chemical insecticides in controlling pod borers. Integrated use of chemical and biological insecticides could be used for controlling bean pests.

Document Type: Research Article

Publication date: December 1, 1986

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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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