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Survey of Malathion Resistance and Avermectin Susceptibility in Field Populations of Drosophila melanogaster (Diptera: Drosophilidae) and D. simulans

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Populations of Drosophila melanogaster (Meigen) and Drosophila simulans (Sturtevant) from various geographic locations in North America and elsewhere were sampled to assess the distribution of malathion resistance and avermectin tolerance. Comparisons are made to previous reports of a differential response to malathion selection in these species. Results indicate that for malathion, resistance is widespread in D. simulans but varies considerably in D. melanogaster. For avermectins, although the pattern of tolerance is similar in both species, there exists a significant amount of variation in these levels between geographic regions. We consider how these different geographic patterns of resistance distribution may shed insight on the relative roles of population structure and exposure history in affecting the spread of resistance. In addition, we consider further the use of D. melanogaster and D. simulans as a model for examining the effects of insecticide exposure on sympatric populations.

Document Type: Research Article

Publication date: December 1, 1998

More about this publication?
  • 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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