The Development and Habits of the Granary Weevil, Sitophilus granarius within the Kernel of Wheat

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Radiographs of wheat infested by granary weevil, Si-tophilus granarius (L.), were made daily from egg to emerged adult. Enlarged prints of the radiographs were mounted consecutively on illustration boards to facilitate study of development and habits of the weevils within kernels. Measurements of tunnel widths were used to determine instars. A series of 4 increases in tunnel width occurred, each of which was followed by 1 or more days of static tunnel width. Each period of increased width paralleled feeding activity; the static width formulated the following instar.

Document Type: Research Article

Publication date: October 1, 1965

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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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