Abstract
Electroantennograms were obtained fromD. pseudotsugae in response to the pheromones 3-methylcyclohex-2-en-1-one (3,2-MCHone), 3-methylcyclohex-2-en-1-ol (3,2-MCHol), frontalin,trans-verbenol, verbenone, and the host terpene hydrocarbons limonene and camphene. Male and female beetles were 10 and 100 times more sensitive to 3,2-MCH-one and 3,2-MCHol than to the other compounds. Of the other compounds, males were most sensitive totrans-verbenol, verbenone, and camphene, while females were most sensitive to frontalin, limonene, and camphene. The results parallel and help explain behavior of individual males and females during host tree selection, aggregation, and colonization.
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Texas Agricultural Experiment Station Paper Number TA-17779. This research was supported in part by McIntire-Stennis Project 1525, and NSF Grant PCN 79-21708 to Oregon State University. All programs and information of the Texas Agrigultural Experiment Station are available without regard to race, ethnic origin, religion, sex, or age.
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Dickens, J.C., Gutmann, A., Payne, T.L. et al. Antennal olfactory responsiveness of Douglas-fir beetle,Dendroctonus pseudotsugae Hopkins (Coleoptera: Scolytidae) to pheromones and host odors. J Chem Ecol 9, 1383–1395 (1983). https://doi.org/10.1007/BF00990745
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DOI: https://doi.org/10.1007/BF00990745