Tobacco Budworm: Selection for Resistance to Methyl Parathion from a Field-Collected Strain

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Throughout 21 generations, a selected strain of Heliothis virescens (F.) exhibited greater resistance to methyl parathion than a nonselected strain. In crosses of selected and nonselected insects, the male parent from the selected strain produced more resistant offspring than the female parent from this strain. An estimate of heritability of resistance made for generations 1 to 6 of the selected strain indicated that 78% of the variation was due to additive gene action. Selection with an 80% lethal dose was applied to eight generations, but the response for resistance weakened in the later generations.

Document Type: Research Article

Publication date: April 1, 1982

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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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