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Effect of Several Management Tactics on Adult Mortality and Progeny Production of Sitophilus zeamais (Coleoptera: Curculionidae) on Stored Corn in the Laboratory

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A factorial experiment was conducted to examine the effects of temperature, corn hybrid, moisture content of corn, malathion treatment, and presence or absence of surface-contaminating fungi on adult survival, progeny production, progeny weight, and time to 50% emergence of the maize weevil, Sitophilus zeamais Motschulsky.Temperature, moisture content, surface contamination, and malathion significantly influenced maize weevil mortality. Progeny production was affected by these factors as well as by the corn hybrids. Progeny weight and time to 50% emergence were affected only by temperature and moisture content. There were several highly significant interactions, most notably between temperature and moisture content. Temperature, corn hybrid, and moisture content appear to offer the greatest potential for nonchemical control of maize weevil in bulk grain stores.

Document Type: Research Article

Publication date: June 1, 1991

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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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