Carbon Dioxide on the Penetration and Distribution of Phosphine through Wheat
Author: Leesch, James G.
Source: Journal of Economic Entomology, Volume 85, Number 1, February 1992 , pp. 157-161(5)
Publisher: Entomological Society of America
Abstract:Aluminum phosphide was applied with and without CO2 (dry ice) to the top of 4.15-m towers containing soft red winter wheat. Amounts were calculated based on the total volume of the towers to produce theoretical concentrations of 1.74 g PH3/m3 and 5% (by vol) CO2, Concentrations of PH3 and CO2 were determined periodically during the 6-d experiments. When CO2 was applied with aluminum phosphide, phosphine penetrated the column of wheat faster and accumulated in higher concentrations than when aluminum phosphide was applied alone. Effects of the CO2 were more pronounced as the depth in the column increased. At the end of the exposure time, concentrations of phosphine were more evenly distributed when CO2 was applied with the aluminum phosphide.
Document Type: Research Article
Publication date: February 1, 1992
- 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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