In this study,steam distillation was used to extract the volatile constituents from the bark of Pinus armandii.The volatile constituents and Pissodes punctatus were used for laboratory test by"Y"olfactometer.The chemical constituents of the volatile oil were identified with GC/MS method.6.25% volatile constituents showed strong attractiveness to Pissodes punctatus in the laboratory,and 65 compounds were identified mainly including such chemical compound as Limonene(29.27%),Benzene(17.81%),1R-.alpha.-Pinene(16.08%),3-Methylhexane(7.15%),and Heptane(5.55%),beta.-Pinene(5.67%),Caryophyllene(3.27%),beta.-Myrcene(3.1%) and etc.
