Identification Volatile Compounds Involved in Host Location by Dastarcus helophoroides

doi:10.16409/j.cnki.2095-039x.2020.05.028

Abstract

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

CLC Number:

S476.2

MI Feng, WANG Manqun. Identification Volatile Compounds Involved in Host Location by Dastarcus helophoroides[J]. Chinese Journal Of Biological Control, 2020, 36(5): 685-689.

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