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EFFECT OF AN INSECT GROWTH REGULATOR ON LIPID AND CARBOHYDRATE RESERVES OF MOSQUITO PUPAE (DIPTERA: CULICIDAE)*

Published online by Cambridge University Press:  31 May 2012

R. G. H. Downer ,
J. H. Spring  and
S. M. Smith
R. G. H. Downer
Affiliation:
Department of Biology, University of Waterloo, Waterloo, Ontario
J. H. Spring
Affiliation:
Department of Biology, University of Waterloo, Waterloo, Ontario
S. M. Smith
Affiliation:
Department of Biology, University of Waterloo, Waterloo, Ontario
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Abstract

Pupae of the yellow fever mosquito, Aedes aegyti (L.), were examined for glycogen and lipid content under normal conditions and following exposure, as fourth-instar larvae, to 0.1 ppm of the insect growth regulator, Altosid® (isopropyl 11-methoxy-3,7,11-trimethyl-dodeca-2,4-dienoate).

The glycogen reserves of control and experimental insects show similar rates of utilization up to about 24 h of pupal life, but at 48 h, the glycogen reserves of treated animals are depleted. Examination of pupal lipid content indicates that insects treated with Altosid begin pupal life with lipid reserves which are considerably less than those of control animals.

The reduced energy reserves available to newly emerged adults may contribute to premature mortality.

Type
Articles
Information
The Canadian Entomologist , Volume 108 , Issue 6 , June 1976 , pp. 627 - 630
Copyright
Copyright © Entomological Society of Canada 1976

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