Organophosphorus Resistance in An Apple Orchard Population of Typblodromus (Amblyseius) fallacis1,2

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Results of a survey of the mite fauna found in a commercial apple orchard in Wilkes Co., North Carolina, indicated that populations of a phytoseiid, Typhlodro1n!ls (Amblyseius) fal/acis (Garman), and a stigmaeid, Zet- Zellia mali (Ewing), were surviving azinphosmethyl applications. A strain of T. fallacies which had shown resist- ance in the field to azinphosmethyl was subjected to laboratory toxicity tests, and the results showed a high to moderate degree of resistance to azinphosmethyl and parathion when compared with a susceptible strain. The organophosphorus-resistant strain showed no resistance to carbaryl.

Document Type: Research Article

Publication date: October 1, 1970

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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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