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Pest Manag Sci

Title:		"Identification of a unique three-component sex pheromone produced by the tea black tussock moth, Dasychira baibarana (Lepidoptera: Erebidae: Lymantriinae)"
Author(s):		Magsi FH; Li Z; Cai X; Yamamoto M; Bian L; Zhao Y; Zhou L; Xiu C; Fu N; Ando T; Luo Z; Chen Z;
Address:		"Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Science, Hangzhou, China. Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China. Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan"
Journal Title:		Pest Manag Sci
Year:		2022
Volume:		20220420
Issue:		6
Page Number:		2607 - 2617
DOI:		10.1002/ps.6892
ISSN/ISBN:		1526-4998 (Electronic) 1526-498X (Linking)
Abstract:		"BACKGROUND: The tea black tussock moth Dasychira baibarana Matsumura is a devastating pest in tea plantations that causes substantial economic losses. Presently, there is no effective method to control this pest other than pesticide application. The identified sex pheromone of D. baibarana could be used for detecting and monitoring this pest. RESULTS: Gas chromatography-electroantennogram detection showed that D. baibarana male moth antennae responded strongly to three components in the female sex pheromone gland, which were identified as: (3Z,6Z)-cis-9,10-epoxyhenicosa-3,6-diene (Z3,Z6,epo9-21:H) (I), (3Z,6Z,11E)-cis-9,10-epoxyhenicosa-3,6,11-triene (Z3,Z6,epo9,E11-21:H) (II) and (3Z,6Z)-henicosa-3,6-dien-11-one (Z3,Z6-21:11-one) (III). Dasychira baibarana uses a unique composition of an epoxydiene, epoxytriene, and dienone with the same 3,6-dienyl motif as its sex pheromone. The epoxytriene and dienone were not previously characterized as insect pheromone components. Electroantennogram analysis showed that each synthetic compound strongly stimulated male antennae, and compounds II and III elicited stronger responses than compound I. A wind tunnel bioassay and field trapping experiments proved that, ternary blends of compounds I-III attracted D. baibarana. Efficient attraction was achieved with a rubber septum baited with 500 mug of a mixture of compounds I-III at the ratio 25:20:55. CONCLUSION: The three identified compounds elicited an electroantennogram response in D. baibarana male moth antennae, and a mixture of the three components at the ratio 25:20:55 attracted D. baibarana male moths in a wind tunnel assay and field trapping experiments. This blend could be used for integrated management of D. baibarana in tea plantations. (c) 2022 Society of Chemical Industry"
Keywords:		"Animals Female Gas Chromatography-Mass Spectrometry Male *Moths/physiology Polyenes *Sex Attractants/chemistry/pharmacology Tea (3Z, 6Z)-cis-9, 10-epoxyhenicosa-3, 6-diene (3Z, 6Z)-henicosa-3, 6-dien-11-one (3Z, 6Z, 11E)-cis-9, 10-epoxyhenicosa-3, 6, 11-triene Dasy;"
Notes:		"MedlineMagsi, Fida Hussain Li, Zhaoqun Cai, Xiaoming Yamamoto, Masanobu Bian, Lei Zhao, Yingjie Zhou, Li Xiu, Chunli Fu, Nanxia Ando, Tetsu Luo, Zongxiu Chen, Zongmao eng 2019YFD1002100/National Key R&D Program of China/ CARS-23/Modern Agricultural Industry Technology System/ CAAS-ASTIP-2017-TRICAAS/Chinese Academy of Agricultural Sciences/ 1610212018001/Central Public-interest Scientific Institution Basal Research Fund, Chinese Academy of Agricultural Science/ 2019C02033/Key Research and Development Program of Zhejiang Province/ England 2022/04/07 Pest Manag Sci. 2022 Jun; 78(6):2607-2617. doi: 10.1002/ps.6892. Epub 2022 Apr 20"