The volatiles profiles of health, damaged and resistant Chinese pine, Pinus tabuliformis, were surveyed with Super-Q absorbent in headspace absorption method. GC-MS analysis showed that few monoterpenes were detected from health pines, in which α-pinene accounted for more than 97%. After pines were damaged,several kinds of monoterpene were released, includig αpinene, camphene, 3-carene, β-pinene, myrcene, limonene, terpinolene, βphellandrene and longifoleneThe composition of monoterpenes in resistant pines was more complex than damaged pines. ANOVA analysis showed that the relative abundance of αpinene displaying an obvious decreasing in the sequence of health pines > damaged pines > resistant pines. The abundance of 3-carene in damaged pines was higher than that in healthy and resistant pines. The relative content of limonene, camphene and terpinolene in damaged pines increased significantly. The abundance of β-pinene, myrcene and βphellandrene were similar in different pines. Electroantennagram (EAG) and olfactometer were employed to analyze the antennal and behavioral responses of Dendroctuns valens LeConte to the major terpenes in laboratory. It was consistent with the previous field results that (+)-3-carene was the most antennal active and attractive to D. lens. There was no significant difference between (R)-(+)-α-pinene and (S)-(-)-α-pinene in antennal and olfactory sponses
by D. valens. The importance of monoterpenes quantitative differences in host location of D. valens was discussed.