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Mortality of Adult Stored-Product Insects in an Atmosphere Produced by an Exothermic Inert Atmosphere Generator

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Abstract:

The order of tolerance to low O2 atmospheres produced by an exothermic inert atmosphere generator was Silophilus oryzae (L.) = S. granarius (L.) > Rhyzopertha dominica (F.) > Tribolium castaneum (Herbst) > Oryzaephilus surinamensis (L.). Time periods required to kiIl 50 and 95% of the adults of each species (LT) were computed from mortality data obtained in 1- to 240-h exposures at temperatures from 15 to 32°C. As the temperature increased from 15 to 32°C, the time required to obtain 50 and 95% mortality of the insects decreased ca. 90%. The highest LT95 was 296.7 h for S. oryzae at 15°C and the lowest 3.8 h for O. surinamensis at 32°C.

Document Type: Research Article

Publication date: June 1, 1975

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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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