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Reduction of Manduca sexta Fecundity and Fertility by L-Canavanine

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Abstract:

Agar-based artificial diets containing various concentrations of L-canavanine werc fed to 5th-instar tobacco hornworm larvae. The number of chorionated oocytes in the 4-day-old moths, resulting from these larvae, was concentration-dependent between 0.75 and 2.5 mM canavanine. The mean number of chorionated oocytes from the 2.5 mM treatment was only 7.5% of that obtained from the untreated control. Fecundity and fertility of moths from 1 mM canavanine were 14 and 21% of untreated control values, respectively. Matings between treated and untreated moths show that only female reproductive capacity was significantly reduced by canavanine under these conditions.

Document Type: Research Article

Publication date: August 1, 1978

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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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