Tetranychus pacificus McGregor, the mode of inheritance of propargite resistance is consistent with the model of control by one major, nearly completely recessive, gene. No extranuclear effects were found, but minor modifying genes appeared to be involved. Some incompatibility between the susceptible (S)and resistant (R) strains of T. pacificus was found in the F. generation. For T. urticae Koch, F, females were intermediate in response between the Sand R strains. Data for T. urticae indicated probable involvement of more than one gene. Results of previous propargite resistance surveys of spider mites in almond orchards are consistent with the theoretical predictions for the observed inheritance of resistance found for T. pacificus and T. urticae.
Document Type: Research Article
Publication date: June 1, 1990
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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.