The Effects of Some Insecticides on the Metabolites of Blattella germanica1
Authors: CLARK, HUBERT B.; BUTZ, ANDREW
Source: Journal of Economic Entomology, Volume 54, Number 5, October 1961 , pp. 1022-1024(3)
Publisher: Entomological Society of America
Abstract:A study was made of the effects of some insecticides on the metabolites of adult German cockroaches (Blattella germanica (L.)), by comparing the glucose, glycogen, fat, and water constituents of normal and exposed whole insects.
Pieces of filter paper were impregnated with .5%concentrations of DDT, dieldrin, methyl parathion, and Strobane® (terpene polychorinates (6.5%chlorine)) in peanut oil. Insects were exposed to the various insecticides by being caused to walk on the pieces of filter paper for 2-minute periods.
Insects exposed to DDT showed that 62% of glucose, 73% of glycogen, and 16% of fat were utilized in 3 days. Insects exposed to methyl parathion showed a 55%, 64%, 0% decrease in metabolites, respectively. Insects exposed to Strobane showed a 57%, 56%, 19% decrease in metabolites, whereas those exposed to dieldrin showed no change.
There is thus some evidence to support the hypothesis that a reduction in metabolites is associated with the killing action of some insecticides, but also, that not all insecticides have this effect. Evidently dieldrin kills by some mechanism different from that operative with the other insecticides tested.
Document Type: Research Article
Publication date: October 1, 1961
- 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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