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Chinese Journal Of Biological Control ›› 2020, Vol. 36 ›› Issue (5): 685-689.DOI: 10.16409/j.cnki.2095-039x.2020.05.028

• CHEMICAL ECOLOGY OF INSECT • Previous Articles     Next Articles

Identification Volatile Compounds Involved in Host Location by Dastarcus helophoroides

MI Feng1,2, WANG Manqun1   

  1. 1. College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
    2. Tianjin Customs, Tianjin 300041, China
  • Received:2020-10-19 Online:2020-10-08 Published:2020-11-20

Abstract: Dastarcus helophoroides is an important natural parasitoid enemy, which has been released to control long-horned beetles including Monochamus altelnatus. It has been reported that olfactory play a key role in the host location of natural enemies, while chemical cues for host location by D. helophoroides is not clear now. In this study, behavioral responses of D. helophoroides to several odor sources were tested by Y-tube olfactometer, and volatile compounds involved in host location by D. helophoroides were identified by GC-MS. The results showed that D. helophoroides adults showing the preferences to the larvae and fecula of M. altelnatus. Total of 18 headspace compounds were identified from different odor sources, and two compounds D-limonene and longifolene might play the key role in the process of host location of D. helophoroides.

Key words: Dastarcus helophoroides, behavioral response, host location, semiochemicals

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