Nymphs of the pea aphid, Acyrthosiphon pisum (Harris), were fed on synthetic liquid diets contaning chemosterilants or growth regulators. Mortality and fecundity were measured for effects of 27 chemosterilants, maleic hydrazide, Cycocel®, (2-chloroethyl) trimethyl-ammonium chloride) and synthetic "queen substance" (9-oxodec-trans-2-enoic acid). At specified dosages, 6 of the chemosterilants caused permanent sterility, 2 caused temporary sterility, and 21 decreased fecundity. Both maleic hydrazide and synthetic "queen substance" caused high mortality to feeding nymphs, and reduced fecundity in surviving adults. Cycocel was not so toxic to feeding nymphs, but adult fecundity was reduced.
Document Type: Research Article
Publication date: April 1, 1968
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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.