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Scientia Silvae Sinicae ›› 2006, Vol. 42 ›› Issue (5): 84-88.doi: 10.11707/j.1001-7488.20060515

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The Volatile Components of the Chinese Pine and the EAG Responses of the Dendroctonus valens (Coleoptera:Scolytidae)

Wang Hongbin1,3,Wang Yugang1,Zhang Zhen1,Jin Youju2,Zhou Suzhi1   

  1. 1.Research Institute of Forest Ecology, Environment and Protection, CAF Key Lab. Of Forest Protection of State Forestry Administration Beijing 100091;2.College of Biology Science and Technology, BFU Beijing 100083; 3.IPMIST Lab., CAU Beijing 100094
  • Received:2004-05-19 Revised:1900-01-01 Online:2006-05-25 Published:2006-05-25

Abstract:

The volatile compositions of Chinese Pine (Pinus tabulaeformis) are analyzed. The main turpentine volatiles are ?-(+)-α-pinene, (S)-(-)-β-pinene, (S)-(+)-3-carene (the largest) which occupy more than 97% of the total. There are also myrcene, (+)-limonene, camphene, terpinen and phellandrene. In the experiment of Electroantennograms(EAG), the male of red turpentine beetles are sensitive to (S)-(-)-α-pinene、limonene and (S)-(+)-3-carene; while the female of the red turpentine beetles are sensitive to (S)-(+)-3-carene、limonene、(S)-(-)-α-pinene and myrcene. The female are more sensitive to the volatiles than the male. There is much difference in response of Dendroctonus valens in Chinese pine compared to that in USA in ponderosa pine. The volatile difference of the two pine species and the environment condition may contribute to this change. Further study on the mechanism of the change is needed.

Key words: Dendroctonus valens, Pinus tabulaeformis, volatiles, electroantennograms(EAG)