Laboratory Selection of Diatraea saccharalis (F.) (Lepidoptera: Pyralidae) for Resistance to Fenvalerate and Monocrotophos
Sugarcane borer, Diatraea saccharalis (F.), larvae collected from selected sites in Louisiana were interbred, and the progeny were divided into separate colonies for laboratory selection with fenvalerate and monocrotophos. After 12 generations, 3.6- and 7.6- fold levels of resistance had developed in the fenvalerate and monocrotophos selected colonies, respectively. The fenvalerate-selected group also was found to be cross resistant (5-15-fold) to the pyrethroids permethrin, cypermethrin, flucythrinate, and Cyfluthrin (cyano(4-fluoro-3-phenoxy-phenyl)-methyl-3-(2,2- dichloroethenyl)-2,2-dimethyl-cyclopropane-carboxylate) and less susceptible (2-3-fold) to the organophosphate monocrotophos. A reduction in the effectiveness of the pyrethroids was not observed for the monocrotophos selection except for a 2-fold change in response to permethrin. However, this group exhibited a 4- to 5-fold increase in resistance to carbofuran and ca. 2-fold to azinphosmethyl. Based on synergism studies with piperonyl butoxide, S,S,S-tributyl phosphoro trithioate, dimethylmaleate, and the broad spectrum of cross resistance, (1) increased metabolism does not appear to be the primary mechanism of resistance to fenvalerate, and (2) mixed-function oxidase and esterase activity may play a role in resistance to monocrotophos.
Document Type: Research Article
Publication date: August 1, 1984
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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.
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