Susceptibility of Small Bulks of Rapeseed and Sunflower Seed to Some Stored-Product Insects

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Susceptibility of small bulks of rapeseeds and sunflower seeds to 3 species of stored-product insects was determined by infesting the oilseed singly and collectively in an unheated granary during the summers of 1972 and 1973 in Manitoba. During the study, insects were never exposed to temperatures higher than 25°C for more than 2 months. Oryzaephilus mercator (Fauvel) and Tribolium castaneum (Herbst) reproduced well on both seeds. Many adults and larvae were recorded when single infestations of these insects were in the sunflower bulks. Cryptolestes ferrugineus (Stephens) did not reproduce or survive on rapeseed but maintained a low adult population on sunflower.

Document Type: Research Article

Publication date: February 1, 1976

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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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