Department of Plant and Forest Protection Division of Forest Entomology, Swedish University of Agricultural Sciences, P.O. Box 7044, S-750 07, Uppsala, Sweden.
J Chem Ecol. 1993 Jul;19(7):1393-403. doi: 10.1007/BF00984884.
Responses of threeHylastes species,Dryocoetes autographus, and twoHylobius species to terpenes and ethanol were studied in field experiments on clear-cut forest sites in Sweden using baited ground traps.α-Pinene alone did not attract any of the six species. A terpene blend (spruce turpentine consisting mainly ofα-pinene,β-pinene, and 3-carene) attractedHylastes cunicularius, H. brunneus, andHylobius abietis in some experiments, but not in others. The attractiveness of ethanol also varied; the only species consistently attracted wasH. abietis. Baits containing both terpenes and ethanol, particularly the combination of spruce turpentine and ethanol, were attractive to all species exceptHylobius pinastri. InH. abietis, the terpene plus ethanol/ ethanol catch ratios increased during early summer. Seasonal differences in catch levels were observed inH. cunicularius andH. abietis. The addition ofα-pinene reduced the attractiveness of the combination of spruce turpentine and ethanol toH. cunicularius, H. opacus, andD. autographus. The differences in response to the volatiles between species are probably related to differences in reproductive behavior and host preferences.
在瑞典的采伐迹地，使用诱捕器进行了野外实验，研究了三种霍氏切梢小蠹、松墨天牛和两种扁甲属昆虫对萜烯和乙醇的反应。α-蒎烯单独使用不会吸引这 6 种昆虫中的任何一种。在一些实验中，松节油混合物（主要由α-蒎烯、β-蒎烯和 3-蒈烯组成）吸引了霍氏切梢小蠹、H. brunneus 和 Hylobius abietis，但在其他实验中则没有。乙醇的吸引力也有所不同；唯一始终被吸引的物种是 H. abietis。含有萜烯和乙醇的诱饵，特别是松节油和乙醇的组合，对所有物种都有吸引力，除了 Hylobius pinastri。在 H. abietis 中，萜烯加乙醇/乙醇的捕获率在初夏增加。在 H. cunicularius 和 H. abietis 中观察到捕获水平的季节性差异。α-蒎烯的添加降低了松节油和乙醇混合物对 H. cunicularius、H. opacus 和 D. autographus 的吸引力。不同物种对挥发物的反应差异可能与生殖行为和寄主偏好的差异有关。
