Growth of Fall Armyworm (Lepidoptera: Noctuidae) Larvae on Resistant and Susceptible Corn

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Growth oflarvae offall armyworm, Spodoptera frugiperda (]. E. Smith), was evaluated in a laboratory bioassay on diets containing lyophilized leaf tissue of resistant and susceptible inbred lines of corn, Zea mays L. Diets were prepared by adding lyophilized tissue of each of six inbred lines alone and in pairs to distilled water, agar, genta-micin sulfate, sorbic acid, and ascorbic acid. Larvae were fed the test diets for 10 d and then weighed. Larvae that were fed the diets containing leaf tissue of the resistant plants weighed 52% less than those fed diets containing only susceptible plant tissue. Growth of larvae on diets containing mixtures of leaf tissue from different inbred lines revealed that the variation among diets was accounted for by the average performance of different lines.

Document Type: Research Article

Publication date: October 1, 1992

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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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