I propose that the high level of resistance to cyanopyrethroids found in cyhalothrin- selected horn flies is caused by an enzyme system that oxidatively inactivates the cyano group. This theory is supported by lower resistance to noncyano pyrethroids, lower response to the synergist piperonyl butoxide with noncyano pyrethroids, resistance ratios and synergism coefficients among the cyanopyrethroids that follow a pattern predicted by chemical stability of the molecule, and reported literature of distinctly different responses to cyano and noncyano pryrethroids in other animal systems.
Document Type: Research Article
Publication date: December 1, 1995
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.