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Components and composition of active volatiles attract on Diorhabda tarsalis (Coleoptera: Chrysomelidae) from Glycyrrhiza uralensis (Rosales: Leguminoseae)

文献类型： 外文期刊

作者： Chen, Hong-hao 1 ; Zhang, Rong 4 ; Tan, Shu-qian 1 ; Wang, Yan 4 ; Liu, Xiao-li 4 ; Shi, Wang-peng 1 ;

作者机构： 1.China Agr Univ, Chinese Med Herbs Res Ctr, Dept Entomol, Beijing, Peoples R China

2.China Agr Univ, Chinese Med Herbs Res Ctr, MOA Key Lab Pest Monitoring & Green Management, Beijing, Peoples R China

3.China Agr Univ, Coll Plant Protect, Beijing, Peoples R China

4.Ningxia Acad Agr & Forestry Sci, Inst Plant Protect, Yinchuan, Peoples R China

关键词： Chinese licorice; leaf beetle; semiochemicals; HIPVs; VOCs

期刊名称：FRONTIERS IN ECOLOGY AND EVOLUTION （ 影响因子：3.0； 五年影响因子：3.8 ）

ISSN： 2296-701X

年卷期： 2023 年 10 卷

页码：

收录情况： SCI

摘要： IntroductionPerennial Chinese licorice, Glycyrrhiza uralensis, is an important medicinal plant. Diorhabda tarsalis, a leaf beetle, is a serious insect pest on the plant and cause serious yield losses every year and is attracted to healthy and pest-damaged licorice by plant volatiles. AimThe biologically active components of the volatiles released from G. uralensis have not been reported; the components of the volatiles that attract D. tarsalis need to be identified. Such compounds could potentially be used for monitoring and mass-trapping pests. MethodsGC-EAD, GC-MS, EAG, Y-shaped olfactometer behavioral bioassays, and field trials were performed to identify the components and composition of active volatiles. ResultsMale and virgin female adults were generally attracted to volatiles from licorice, and volatiles from pest-infested plants were more attractive. Four compounds from licorice elicited a significant electrophysiological response (EAD) and were confirmed by EAG, including hexanal, (Z)-3-hexenal, (Z)-3-hexen-1-ol, and (E)-2-hexenal. With the exception of the (E)-2-hexenal, these molecules significantly attracted adults in individual behavioral bioassays, and a proportional mixture corresponding to beetle-damaged licorice of hexanal, (Z)-3-hexenal, (Z)-3-hexen-1-ol, and (E)-2-hexenal (8.78:15.26:57.24:18.72) was most effective for attracting D. tarsalis in the field, attracted a mean of 26 +/- 7.19 beetles per trap. DiscussionD. tarsalis was attracted to volatiles from healthy and herbivore-induced G. uralensis under both laboratory and field conditions. The aforementioned compounds show considerable potential for commercial application to monitor and control D. tarsalis populations.

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