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Larvae of Spodoptera frugiperda (J. E. Smith) from a laboratory culture (originally collected from rice near Hammond, La.) reared on bermudagrass, corn, millet, and soybean were treated topically with carbaryl, methyl parathion, permethrin, and trichlorfon to establish log dose-probit lines for each insecticide on each host. Differences among hosts were not detected (P <0.05) in the toxicological response of larvae treated with methyl parathion. Larvae reared on millet were 6X more susceptible (P < 0.05) to trichlorfon than larvae reared on the other 4 hosts. Larvae reared on bermudagrass and millet were more susceptible (P < 0.05) to carbaryl and permethrin than larvae reared on corn, cotton, or soybean. Cultures collected from corn and signalgrass, previously treated with carbaryl, near Hammond in 1979 exhibited resistance to carbaryl (41X), methyl parathion (113X), permethrin (17X), and trichlorfon (31X) in comparison to the laboratory culture.
Document Type: Research Article
Publication date: February 1, 1981
More about this publication?
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.