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FENITROTHION: CARRY-OVER EFFECTS ON THE F1 GENERATION OF MANDUCA SEXTA (LEPIDOPTERA: SPHINGIDAE)

Published online by Cambridge University Press:  31 May 2012

J. G. Stewart  and
B. J. R. Philogène
J. G. Stewart
Affiliation:
Department of Biology, University of Ottawa, Ottawa K1N 6N5
B. J. R. Philogène*
Affiliation:
Department of Biology, University of Ottawa, Ottawa K1N 6N5
*
1 Person to whom all correspondence should be addressed.
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Extract

In a previous investigation on the effects of sublethal doses of fenitrothion (O,O-dimethyl-O-(3-methyl-4-nitrophenyl)phosphorothioateo)n the tobacco hornworm, Manduca sexta (L.), it was found that the treated larvae developed asynchronously, required more time to reach the pupal stage, and had larger bodyweights than the control larvae (Stewart and Philogène 1983). Regressive moults, faster pupal development, and shorter longevity of the adults were also observed. The impact of sublethal doses of insecticides on subsequent generations of insects has, however, received limited attention. We now present experimental evidence that the progeny of treated insects can also show some of the characteristics described above, an observation that may have significant consequences in the field.

Type
Articles
Information
The Canadian Entomologist , Volume 115 , Issue 11 , November 1983 , pp. 1543 - 1544
Copyright
Copyright © Entomological Society of Canada 1983

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References

Nijhout, H. R. 1975. A threshold size for metamorphosis in the tobacco hornworm, Manduca sexta (L.). Biol. Bull. 149: 214–225.CrossRefGoogle ScholarPubMed
Nijhout, H. R. and Williams, C. M.. 1975. Control of moulting and metamorphosis in the tobacco hornworn Manduca sexta (L.): Growth of the last instar larvae and the decision to pupate. J. exp. Biol. 61: 481–492.CrossRefGoogle Scholar
Stewart, J. G. and Philogène, B. J. R.. 1983. Sublethal effects of fenitrothion on the development of a parental generation of Manduca sexta. Entomologia exp. appl. 33: 315–319.CrossRefGoogle Scholar