The Uptake and Metabolism of Parathion by Insect Eggs1
Authors: O'BRIEN, R.D.; SMITH, E. H.
Source: Journal of Economic Entomology, Volume 54, Number 1, February 1961 , pp. 187-191(5)
Publisher: Entomological Society of America
Abstract:In an attempt to account for their widely differing susceptibilities to parathion, the uptake and metabolism of P32-parathion vapor by eggs of the large milkweed bug (Oncopeltus fasciatus (Dull.)) and peach tree borer (Sanninoidea exitiosa (Say)) and the uptake by eggs of the Mexican bean beetle (Epilachna varivestis Muls.) and southern arnyworm (Prodenia eridania (Cram.)) were investigated. In all cases large amounts of parathion Were taken up by the chorion and most (50% to 9-1%) Could be washed off with acetone followed by chloroform. considerable variations were found in ability of the eggs to take up parathion and in penetration of the chorion by the parathion. In the ovicidally susceptible peach tree borer and the nonsusceptible milkweed bug conversion of internal parathion to paraoxon was 30% and 25%, respectively, suggesting that activation and detoxification did not account for the insensitivity of the milkweed bug. In the other three species there was within broad limits a general relationship between internal levels of parathion and ovicidal susceptibility. No single factor could he cited to account for the variations in ovicidal susceptibility of the various species to parathion.
Document Type: Research Article
Publication date: February 1961
- 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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