Effect of Ethyl Alcohol and Acetone on the Toxicity of Ethion in Bioassays on Two Species of Rust Mites of Citrus^1,2

Authors: REED, D. K.; CRITTENDEN, C. R.; LYON, D. J.

Source: Journal of Economic Entomology, Volume 61, Number 4, August 1968 , pp. 1003-1005(3)

Publisher: Entomological Society of America

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Abstract:

Replicated laboratory experiments were conducted to determine the effect that ethyl alcohol and acetone exert upon the toxicity of ethion against the citrus rust mite, Phyllocoptruta oleivora (Ashmead); and Aculops pelekassi (Keifer). In routine screening work, technical acaricides are dissolved in 4 ml of solvent and then diluted to 800 ml with distilled water into which mites are dipped. Three dosages of ethion were tested comparing this method with 2 other methods using increased concentrations of solvents. A significant reduction in mean percent mortality of both mites resulted when mites were either dipped in 10% solvent before immersion into the toxicant or were dipped into toxicant diluted with 10% solvent. Using the standard technique, mortality of mites was essentially the same as obtained in previous tests.

Document Type: Research article

Publication date: 1968-08-01

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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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