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Implications of Parathion Resistance and Toxicity of Citricultural Pesticides to a Strain of Euseius hibisci (Chant) (Acarina: Phytoseiidae) from the San Joaquin Valley of California

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Abstract:

The toxicity of 15 citricultural pesticides to a San Joaquin Valley, California strain of Euseius hibisci (Chant) were evaluated in laboratory bioassays by use of the leaf disc-dip technique. Compounds of low toxicity were parathion, carbaryl, sabadilla, and fenbutatin-oxide. Malathion, methidathion, and propargite were moderately toxic to E. hibisci. Compounds highly toxic to this predatory phytoseiid were methomyl, acephate, cyhexatin, dimethoate, dicofol, chlorpyrifos, oxythioquinox, and chlorobenzilate. Adult females were highly sensitive to methomylleaf residues. A majority of females moved off into the water barrier soon after their placement on the treated surface at levels as low as 0.94 g (AI)/100 liters. The potential for augmentation and conservation of the strain for the biological control of spider mites and citrus thrips in San Joaquin Valley citrus integrated pest management programs are suggested.

Document Type: Research Article

Publication date: June 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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