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Development, Mortality from Starvation, and Oviposition of the Pale Western Cutworm, Agrotis orthogonia Morr. (Lepidoptera: Noctuidae), When Fed on Various Food Plants1

Published online by Cambridge University Press:  31 May 2012

L. A. Jacobson  and
P. E. Blakeley
L. A. Jacobson
Affiliation:
Crop Insect Section, Science Service Laboratory, Lethbridge, Alberta
P. E. Blakeley
Affiliation:
Crop Insect Section, Science Service Laboratory, Lethbridge, Alberta
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Extract

When a crop has been destroyed by the pale western cutworm, Agrotis orthogonia Morr., one to two weeks may elapse before plants of the second seeding emerge. During this time the larvae may be starved or, at least, subjected to a suboptimum food supply. Frequently the second seeding may be of a different crop from the one that was destroyed.

A previous investigation (Jacobson, 1952) showed that mortality of the starved larvae varied directly with temperature and inversely with size of larvae. Seamans and McMillan (1935) reported that, when the larvae were fed various foods, differences were found in the rate of development and survival.

Type
Articles
Information
The Canadian Entomologist , Volume 90 , Issue 11 , November 1958 , pp. 650 - 653
Copyright
Copyright © Entomological Society of Canada 1958

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References

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