Science. 1965 Dec 10;150(3702):1457-9. doi: 10.1126/science.150.3702.1457.
The Douglas-fir beetle is attracted to alpha-pinene but repelled by beta-pinene. Attacks on standing trees are related to the content of alpha- or beta-pinene in the tree; this correlation suggests that volatile oils may be the stimuli initially attracting the insect to the Douglas fir.
道格拉斯冷杉甲虫被α-蒎烯吸引，但被β-蒎烯排斥。对站立树木的攻击与树木中α-或β-蒎烯的含量有关；这种相关性表明挥发性油可能是最初吸引昆虫到道格拉斯冷杉的刺激物。
