Abstract
The two major yeasts isolated from the southern pine beetle,Dendroctonus frontalis Zimmerman, areHansenula holstii Wickerham andPichia pinus (Hoist) Phaff; a third yeast,P. bovis van Uden et do Carmo-Sousa, has been isolated far less frequently. The main volatile metabolites produced by these yeasts are isoamyl alcohol, isoamyl acetate, 2-phenylethanol, and 2-phenylethyl acetate.We have found that certain of these compounds, particularly the esters, can greatly, enhance the attractiveness of a mixture of frontalin:trans-verbenol: turpentine (1:1:12), at certain limiting concentrations, to walking beetles in a laboratory bioassay.
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Supported in part by cooperative agreement No. 19-205 with the USDA Forest Service, Southern Forest Experiment Station, Pineville, Louisianna 71360, the Texas Agricultural Experiment Station Project MS 1525, and the USDA-sponsored program entitled ‘The Expanded Southern Pine Beetle Research and Applications Program’ through CSRS grant 516-15-70. The findings, opinions, and recommendations reported herein are those of the authors, and not necessarily those of the USDA.
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Brand, J.M., Schultz, J., Barras, S.J. et al. Bark-beetle pheromones. J Chem Ecol 3, 657–666 (1977). https://doi.org/10.1007/BF00988065
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DOI: https://doi.org/10.1007/BF00988065