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Laboratory and Field Methods for Assaying Olfactory Responses of the Douglas-fir Beetle, Dendroctonus pseudotsugae Hopkins1

Published online by Cambridge University Press:  31 May 2012

O. K. Jantz  and
J. A. Rudinsky
O. K. Jantz
Affiliation:
Department of Entomology, Oregon State University, Corvallis, Oregon
J. A. Rudinsky
Affiliation:
Department of Entomology, Oregon State University, Corvallis, Oregon
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Abstract

Laboratory tests revealed that female Douglas-fir beetles, Dendroctonus pseudotsugae Hopkins, boring in logs of both host and non-host species produce a volatile substance that both attracts and arrests adult beetles. Male arrestment provided a reliable method for laboratory bioassay of volatile substances. Field tests were devised to show the attack, the attraction produced, and the broad development in six tree species: Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco; western larch, Larix occidentalis Nutt.; ponderosa pine, Pinus ponderosa Laws.; western hemlock, Tsuga heteropbylla (Raf.) Sarg.; western white pine, Pinus monticola Dougl.; and grand fir, Abies grandis (Dougl.) Lindl.

Type
Articles
Information
The Canadian Entomologist , Volume 97 , Issue 9 , September 1965 , pp. 935 - 941
Copyright
Copyright © Entomological Society of Canada 1965

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