A range of trialkyl phosphates and related compounds was screened for antifertility effects on adult ♀ Tetranychus urticae Koch. Trimethyl phosphate, triethyl phosphate, diethyl cyanomethylphosphonate, and dimethyl methylphosphonate either significantly reduced the number of eggs laid or % hatch in tests on individual bean leaf discs. A structure-activity relationship is suggested. Permanence of sterility and residual sterilizing effects were tested with triethyl phosphate and diethyl cyanomethylphosphonate. Diethyl cyanomethylphosphonate maintained a greater level of sterility than triethyl phosphate once the mites were removed from treated discs. Similarly, residual sterilizing properties were maintained on leaf discs significantly longer by diethyl cyanomethylphosphonate than by triethyl phosphate.
Document Type: Research Article
Publication date: April 1, 1976
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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.