Pirimiphos-methyl as a Protectant for Stored Rough Rice: Small Bin Tests

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Abstract:

Control of stored-product insects with pirimiphos methyl applied at rates of 5, 10 or 15 ppm to rough rice was compared directly with the control obtained with 14 ppm malathion when the treated rice was stored in fiberboard drums and subjected to constant, heavy infestation pressure for 12 months. Malathion was ineffective in protecting the grain from a malathion-resistant strain of the Angoumois grain moth, Sitotroga cerealella (Olivier). Pirimiphos-methyl at 10 and 15 ppm protected the rice from all insect infestation for 12 months. Chemical residues in the rough rice and in all milling fractions were determined.

Document Type: Research Article

Publication date: June 1, 1976

More about this publication?
  • 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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