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A laboratory strain of the Pacific spider mite, Tetranychus pacificus McGregor, was relatively slow in developing resistance to O-isopropyl O- (2,4,5-trichlorophenyl) phosphoramidothioate or the phosphoramidate under selection pressure, as compared with the response of this strain to demeton and parathion. In large-scale field tests, however, the citrus red mite, Panonychus citri (McGregor), developed resistance to this phosphoramidothioate after 6 applications and to the phosphoramidate as a result of 3 treatments. These and other studies mentioned suggest that laboratory selection pressure was of little value as a means of predicting that resistance may be slow in occurring. When, however, resistance develops rapidly under laboratory selection pressure it should be a good indication that resistance will develop rapidly in the field.
Document Type: Research Article
Publication date: April 1, 1965
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.