A modified venturi-type olfactometer was used to test mature larvae of the khapra beetle, Trogoderma granarium Everts, and T. parabile Beal. Reactions of the larvae are extremely similar. They are repelled by air containing a high percent of relative humidity. Very low concentrations of CO2 appear repellent whereas high concentrations are strongly attractive. The alcohols containing from 3 to 7 carbons are repellent to T. parabile while T. granarium is repelled by those with 3 to 10 carbon atoms. Both fish meal and dry brewer's yeast are significantly attractive to T. parabile while only fish meal is attractive to T. granarium.
Document Type: Research Article
Publication date: April 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.