Relationship of Larval Age to Toxicity of Gossypol to Bollworms, Tobacco Budworms, and Pink Bollworms

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Larvae of the bollworm, Heliothis zea (Boddie); the tobacco budworm, H. virescens (F.); and the pink bollworm, Pectinophora gossypiella (Saunders); were reared on a standard larval diet and transferred at 5 ages onto media containing 0, 0.1, 0.2, 0.3, and 0.4% gossypol. Gossypol had statistically significant adverse effects on pupal weight and days to pupation and to adult. However the influence on development decreased with increasing larval age at the time of transfer. Pink bollworm larvae were able to tolerate higher concentrations of gossypol than either bollworm or tobacco budworm larvae.

Document Type: Research Article

Publication date: December 15, 1970

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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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