Insecticidal Dusts: Grain Protectants During High Temperature-Low Humidity Storage

Author: Lahue, Delman W.

Source: Journal of Economic Entomology, Volume 71, Number 2, April 1978 , pp. 230-232(3)

Publisher: Entomological Society of America

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Abstract:

Diatomaceous earth dusts impregnated with 4.5, 6.0, and 7.5 ppm AI pirimiphos-methyl and with 5.0, 7.5, and 10 ppm AI malathion were tested as protectants against insect attack on hard winter wheat (11.2% moisture) stored at ca. 33.4°C and 40% RH. The dusts were applied at a rate of 0.5 kg dust/metric ton of wheat. Sprays prepared from emulsifiable concentrates and the dust base alone were used for treatment checks. Dust formulations were more effective than sprays that contained equivalent doses and were much more effective were than diatomaceous earth alone. Pirimiphos-methyl was more effective than malathion.

Document Type: Research article

Publication date: 1978-04-01

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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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