Susceptibility of Two Strains of Sitophilus granarius1 to 1,2-Dibromoethane. 3. Effect of Total Lipid on Strain Susceptibility2

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There was no significant difference in the total lipid of 1,2-dibromoethane (EDB) resustabt (LWR) and nor (LWN) strain of Sitophilus granarius (L.) of the same weight. The mean total lipid of LWR insects was greater than that of LWN insects because of their greater weight and weight-dependent lipid content. Studies with 14C labeled EDB showed no relationship between insect weight and percentage of total 14C ether extractable after 2 days. Inert storage of EDB in lipid was not a factor in determining the relative strain susceptibility to this fumigant.

Lipid was consumed during stress conditions of starving or after fumigation, and a possible role of greater total lipid in increasing endurance or vigor tolerance is discussed.

Document Type: Research Article

Publication date: December 1, 1972

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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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