Author: Bariola, Louis A.

Source: Journal of Economic Entomology, Volume 77, Number 5, October 1984 , pp. 1278-1282(5)

Publisher: Entomological Society of America

Abstract:

Pink bollworm, Pectinophora gossypiella (Saunders), moths treated with low doses of certain insecticides had a lower percentage of mating, laid fewer eggs, and, in some cases, had a reduced number of eggs hatch. The synthetic pyrethroids cyfluthrin, fenpropathrin, fenvalerate, flucythrinate, and permethrin all caused reductions in mating during the first 24-h period after treatment. The insecticides also reduced the number of eggs laid. Reductions in mating and oviposition caused by treatment with azinphosmethyl, methylparathion, trichlorfon, carbaryl, and chlordimeform were usually associated with or were the result of high mortality. Avermectin B₁, an experimental compound from Merck, Sharpe and Dohme (MK-936), completely prevented mating and oviposition at the LD₁₀ and LD₅₀ with little mortality among the treated insects. Hatching of eggs was also reduced by these treatment levels of Avermectin B₁. These tests show that, in addition to causing mortality, treatments of moths with certain insecticides may cause population suppression through reduced mating, fecundity, and hatching of eggs.

Document Type: Research article

Publication date: 1984-10-01

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.
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