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Abstract
Several scolytid species are known to use host volatiles such as monoterpenes and the degradation product, ethanol, when searching for suitable host material. The release rates of terpenes and ethanol and the proportions in which they are released can be expected to differ depending on the breeding substrate preferences of the various scolytid species. The aim of this study was to compare the attraction of various scolytid species and associated beetles to combinations of α-pinene and ethanol in proportions of approximately 1:1 and 1:10 when released at three different rates. α-Pinene was chosen because it is one of the major monoterpenes in both Scots pine,
Pinus sylvestris L., and Norway spruce,
Picea abies (L.) Karst., the two dominant conifers in Scandinavia. Ethanol was chosen because it is one of the major degradation volatiles which are produced as a result of deterioration processes in dead or dying trees. Both substances have previously been demonstrated to attract several wood- and bark-living beetle species.
Parent Publication
Citation
Schroeder, Leif Martin. 1991. Attraction of some scolytids and associated beetles to the host volatiles α-pinene and ethanol. In: Baranchikov, Yuri N.; Mattson, William J.; Hain, Fred P.; Payne, Thomas L., eds. Forest Insect Guilds: Patterns of Interaction with Host Trees; 1989 August 13-17; Abakan, Siberia, U.S.S.R. Gen. Tech. Rep. NE-153. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 393-395.
