Biological Activity of Avermectin B1 Against the Boll Weevil (Coleoptera: Curculionidae)

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In laboratory studies, the compound avermectin B, (MK-936) was biologically active against Anthonomus grandis grandis Boheman. The activity was expressed by arrested pupal-adult development when avermectin B1 was topically applied to newly ecdysed pupae. Depending upon the concentration applied, metamorphosis progressed to a given point in morphogenesis and then death occurred. Avermectin B1 significantly reduced pheromone production when applied topically to adults. Additional effects were observed on adults after immersion or by their feeding upon treated cotton buds. Paralysis developed and death occurred at ca. 14 days postexposure. A swollen, distended abdomen extending beyond the elytra was a characteristic symptom of avermectin B1 activity.

Document Type: Research Article

Publication date: August 1, 1984

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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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