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SCOLYTID FLIGHT IN WHITE SPRUCE STANDS IN ALASKA

Published online by Cambridge University Press:  31 May 2012

Roy C. Beckwith
Affiliation:
Institute of Northern Forestry, Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, Fairbanks, Alaska

Abstract

Within white spruce stands near Fairbanks, Alaska, and on the Kenai Peninsula, Alaska, Dendroctonus rufipennis, Ips spp., and Trypodendron lineatum disperse in late May and early June; other scolytids fly during June and July. Flight in interior Alaska precedes by about 2 weeks that on the Kenai Peninsula. Mean daily temperatures during spring and early summer are generally warmer in the interior than in coastal areas. There was a large increase in the total number of beetles in a thinned area, mostly of Dryocoetes affaber.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1972

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