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EFFECT OF TEMPERATURE AND RESIN ON HATCH OF EGGS OF THE MOUNTAIN PINE BEETLE (DENDROCTONUS PONDEROSAE)

Published online by Cambridge University Press:  31 May 2012

R. W. Reid  and
H. Gates
R. W. Reid
Affiliation:
Forest Research Laboratory, Department of Fisheries and Forestry, Calgary, Alberta
H. Gates
Affiliation:
Forest Research Laboratory, Department of Fisheries and Forestry, Calgary, Alberta
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Abstract

Effects of temperature and resin on hatch of mountain pine beetle eggs were investigated. Per cent hatch was related to total degree-hours above 40°F, the average being 5113 for 50% hatch under field conditions. Average supercooling point was 1.3°F. Higher temperatures in the freezing range were lethal with long exposure. Atmosphere saturated with volatiles from liquid resin had very little effect on egg hatch, but direct contact with liquid resin greatly reduced egg hatch.

Type
Articles
Information
The Canadian Entomologist , Volume 102 , Issue 5 , May 1970 , pp. 617 - 622
Copyright
Copyright © Entomological Society of Canada 1970

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