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Relation of Temperature for Hatching to Elimination of Diapause in Eggs of the Pale Western Cutworm, Agrotis orthogonia Morrison (Lepidoptera: Noctuidae)1

Published online by Cambridge University Press:  31 May 2012

L. A. Jacobson
L. A. Jacobson
Affiliation:
Canada Agriculture Research Station, Lethbridge, Alberta
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Extract

A weak diapause occurs in eggs of thc pale western cutworm, Axrotis orthogonia Morrison. It does not occur nor is it manifested equally in all eggs. As the eggs are laid in thc fall and hatch the following spring, the diapause 1s sufficient to ensure that they will not hatcll readily upon development to maturity in the fall and that hatchinig is delayed until food is available for the newly hatched larvae (Jacobson, 1962). The rate of hatch of eggs in which diapause has been eliminated varies directly with temperature and hatching may occur at temperatures slightly above freezing (Jacobson and Blakeley, 1958).

Type
Articles
Information
The Canadian Entomologist , Volume 94 , Issue 8 , August 1962 , pp. 889 - 892
Copyright
Copyright © Entomological Society of Canada 1962

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References

Hodson, A. C., and Weinman, C. J.. 1945. Factors affecting recovery from diapause and hatching of eggs of the forest tent caterpillar, Malacosoma disstria Hübner. Minn. Agr. Expt. Sta. Tech. Bull. 170.Google Scholar
Jacobson, L. A., and Blakeley, P. E.. 1958. Influences of temperature and moisture on hatching of eggs of the pale western cutworm, Agrotis orthogonia Morrison (Lepidoptera: Noctuidae). Canadian J. Pl. Sci. 38: 127–134.CrossRefGoogle Scholar
Jacobson, L. A. 1962. Diapause in eggs of the pale western cutworm, Agrotis orthogonia Morrison (Lepidoptera: Noctuidae). Canadian Ent. 94: 515–522.CrossRefGoogle Scholar
Lees, A. D. 1955. The physiology of diapause in arthropods. Cambridge University Press.Google Scholar
Way, M. J. 1959. The effect of temperature, particularly during diapause, on the development of the egg of Leptohylemyia coarctata Fallén (Diptera: Muscidae). Trans. R. Ent. Soc. Lond. 111: 351–364.CrossRefGoogle Scholar