Insecticide Resistance in the Sweetpotato Whitefly, Bemisia tabaci (Homoptera: Aleyrodidae)

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A broad spectrum of resistance to organophosphorus insecticides has evolved in Bemisia tabaci (Gennadius) in southern California. High resistance to sulprofos and methyl parathion, ranging from 20- to 54-fold, was detected in three field populations. The resistance is related to exposure to chemicals used for control of cotton pests. Moderate levels of resistance (3- to 7-fold) were observed to fenthion, malathion, and parathion in the strain from Imperial Valley, California. In addition, two strains showed relatively high levels of resistance to permethrin (12- to 29-fold). Resistance to DDT (6.5- to 9.7-fold) was present in all three strains.

Document Type: Research Article

Publication date: August 1, 1985

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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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