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ATTRACTION AND REPRESSION OF DENDROCTONUS PSEUDOTSUGAE (COLEOPTERA: SCOLYTIDAE) BY THREE SYNTHETIC PHEROMONES IN TRAPS IN OREGON AND IDAHO1

Published online by Cambridge University Press:  31 May 2012

J. A. Rudinsky ,
M. M. Furniss ,
L. N. Kline  and
R. F. Schmitz
J. A. Rudinsky
Affiliation:
Department of Entomology, Oregon State University, Corvallis
M. M. Furniss
Affiliation:
USDA, Forest Service, Forestry Sciences Laboratory, Moscow, Idaho
L. N. Kline
Affiliation:
Department of Forestry, State of Oregon, Salem
R. F. Schmitz
Affiliation:
USDA, Forest Service, Forestry Sciences Laboratory, Moscow, Idaho
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Abstract

Comparative tests were made in Oregon and Idaho employing sticky traps with three synthetic pheromones of Dendroctonus pseudotsugae Hopkins, frontalin, 3-methyl-2-cyclohexen-1-one, and trans-verbenol, and the host attractants Douglas-fir resin, alpha-pinene, and camphene. The attractiveness of frontalin combined with host volatiles reported earlier from Idaho was confirmed. The combination of trans-verbenol with frontalin plus camphene in Oregon brought the highest response among synthetic treatments, but the addition of trans-verbenol to other treatments with frontalin sometimes decreased beetle response.3-Methyl-2-cyclohexen-1-one almost nullified the attractiveness of all baits tested. The practical use of such a compound to prevent beetle aggregation and protect susceptible Douglas-fir trees as well as to regulate the "spillover" from attractive baits is considered as a possible new method of protection against bark beetles.

Type
Articles
Information
The Canadian Entomologist , Volume 104 , Issue 6 , June 1972 , pp. 815 - 822
Copyright
Copyright © Entomological Society of Canada 1972

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References

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