Tolerance to Permethrin and Fenvalerate in Hymenopterous Parasitoids Associated with Liriomyza spp. (Diptera: Agromyzidae)

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Tolerances to permethrin and fenvalerate residues were determined in several species of parasitoid Hymenoptera associated with Liriomyza sativae Blanchard and Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) in Hawaii. Diglyphus begini (Ashmead) (Eulophidae) was significantly more tolerant to both compounds than Chrysonotomyia punctiventris Crawford (Eulophidae) and Ganaspidium utilis Beardsley (Eucoilidae). Halticoptera circulus (Walker) (Pteromalidae) and G. utilis exhibited the lowest tolerances to permethrin and fenvalerate, respectively. LC50s of parasitoids assayed with fenvalerate were higher than those for permethrin. Comparisons of tolerances of the various parasitoid species with data previously reported for L. sativae and L. trifolii revealed a pattern of medium to high tolerances in the parasitoids relative to the leafminers. D. begini had significantly higher LC50s to both pyrethroids than those reported for the Liriomyza spp.

Document Type: Research Article

Publication date: February 1, 1988

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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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