Abstract
Racemicezo-brevicomin, racemic frontalin, and myrcene were released at two proportions (5∶1∶400 and 1∶1∶1), each at three levels (1 ×, 10 ×, and 100 ×) in a ponderosa pine forest in central California. The 5∶1∶400 mix was based on an estimate of the relative amounts released from a ponderosa pine under attack by the western pine beetle,Dendroctonus brevicomis. MoreD. brevicomis were trapped at a source of the three compounds released at 5∶1∶400 than were trapped at a source released at 1∶1∶1, at all three levels, but this difference was statistically significant only at the 1 × and 10 × levels. Sex ratio of trapped beetles and distribution of catch at the source of attractant and 5 m away apparently did not differ between relative release rates.
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Coleoptera: Scolytidae.
Trade names are mentioned solely for information. No endorsement by the U.S. Department of Agriculture is implied.
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Tilden, P.E., Bedard, W.D. Field response ofDendroctonus brevicomis toexo-brevicomin, frontalin, and myrcene released at two proportions and three levels. J Chem Ecol 11, 757–766 (1985). https://doi.org/10.1007/BF00988303
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DOI: https://doi.org/10.1007/BF00988303