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Environ Entomol

Title:		Electrophysiological and Behavioral Responses of Dasychira baibarana (Lepidoptera: Lymantriidae) to Tea Plant Volatiles
Author(s):		Magsi FH; Luo Z; Zhao Y; Li Z; Cai X; Bian L; Chen Z;
Address:		"Tea Research Institute, Chinese Academy of Agricultural Sciences, Xihu District, Hangzhou, China. Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Xihu District, Hangzhou, China"
Journal Title:		Environ Entomol
Year:		2021
Volume:		50
Issue:		3
Page Number:		589 - 598
DOI:		10.1093/ee/nvab016
ISSN/ISBN:		1938-2936 (Electronic) 0046-225X (Linking)
Abstract:		"Tea black tussock moth, Dasychira baibarana (Matsumura) (Lepidoptera: Lymantriidae), is a devastating pest species of the tea plant in China. Here, we evaluated the responses of D. baibarana to tea plant volatiles using gas chromatography coupled electroantennographic detection (GC-EAD), eleclectroantennography (EAG), and a Y-tube olfactometer. In total, 11 of 18 analyzed compounds elicited GC-EAD responses from test insects. GC-EAD bio-active compounds were further investigated using EAG and behavioral responses. In the EAG analysis, male moths had significantly greater responses to four compounds [(Z)-3-hexenyl butyrate, (Z)-3-hexen-1-ol, ocimene and benzyl alcohol] than female moths. For females, maximum EAG amplitudes, were recorded in response to linalool, (Z)-3-hexenyl hexanoate and (Z)-jasmone. In EAG and behavioral bio-assays, the responses of both sexes were dose independent. In behavioral bio-assays male moths responding significantly to (Z)-3-hexen-1-ol, ocimene, (Z)-3-hexenyl butyrate, linalool, benzyl alcohol, and (Z)-jasmone at various concentrations. For females, significant behavioral responses were observed to (Z)-3-hexenyl hexanoate, followed by (Z)-jasmone, linalool, ocimene, and benzyl alcohol. However, neither sex was sensitive to 4 of the 11 tested compounds, phenyethyl alcohol, phenylacetonitrile, (E)-nerolidol, and indole. The present results showed that tea plant volatiles influenced the behavior of D. baibarana moths, which will greatly contribute in developing eco-friendly control strategies for D. baibarana, through the application of a blend of compounds that showed significant EAG and behavioral responses or a blend combined with female-produced sex pheromones"
Keywords:		Animals *Camellia sinensis China Female Male *Moths *Sex Attractants Tea *Volatile Organic Compounds behavioral bio-assay tea black tussock moth tea plant volatile;
Notes:		"MedlineMagsi, Fida Hussain Luo, Zongxiu Zhao, Yingjie Li, Zhaoqun Cai, Xiaoming Bian, Lei Chen, Zongmao eng Research Support, Non-U.S. Gov't England 2021/03/08 Environ Entomol. 2021 Jun 18; 50(3):589-598. doi: 10.1093/ee/nvab016"