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ASSOCIATION OF SUBZERO TEMPERATURES, SNOW COVER, AND WINTER MORTALITY OF GRASSHOPPER EGGS IN SASKATCHEWAN1

Published online by Cambridge University Press:  31 May 2012

P. W. Riegert
P. W. Riegert
Affiliation:
Research Station, Canada Department of Agriculture, Saskatoon, Saskatchewan
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Abstract

High winter mortality of eggs of three species of grasshopper occurred at various locations in Saskatchewan. Climatological factors associated with these mortalities indicated that egg survival during the winter is dependent upon snow cover as well as upon the intensity and duration of periods of subzero air temperatures.

Type
Articles
Information
The Canadian Entomologist , Volume 99 , Issue 9 , September 1967 , pp. 1000 - 1003
Copyright
Copyright © Entomological Society of Canada 1967

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References

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Riegert, P. W. A history of grasshopper abundance surveys and forecasts of outbreaks in Saskatchewan. Mem. ent. Soc. Can. (in press).Google Scholar