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Diazinon- and methomyl-resistant strains of Plutella xylostella (L.) with resistance ratios of 14.4 and 175, respectively, were developed in the laboratory by continuous selection for 14 and 19 generations. The susceptibility to these 2 chemicals of this insect pest at several locations in Taiwan from 1975–77 was determined. This survey confirms the development of resistance to these insecticides in some field populations of the diamondback moth. Electrophoretic studies revealed qualitative differences in esterase and phosphatase zymograms in susceptible and resistant strains.
Document Type: Research Article
Publication date: June 1, 1978
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.