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Carbaryl Resistance in the Filbert Aphid (Homoptera: Aphididae)

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Development of resistance to carbaryl in field populations of the filbert aphid, Myzocallis coryli (Goetze), is reported here for the first time. The log dosage mortality curves of three aphid populations with different carbaryl exposure history suggest that resistance was acquired in a relatively short time (4 to 5 years, perhaps sooner), but the degree of resistance increased as insecticide use was prolonged. Aphid populations exposed to carbaryl for 5 years (about nine sprays) required 17 to 22 times more chemicals to obtain mortality similar to that of the susceptible strain. The population exposed to carbaryl for 20 years (45 sprays) required about 78 to 145 times more chemical than did the susceptible strain. Resistant aphids attempted to avoid insecticide residues more vigorously than did the susceptible aphids, suggesting that insecticide avoidance behavior might be involved in this resistance mechanism.

Document Type: Research Article

Publication date: October 1, 1983

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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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