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J Econ Entomol

Title:		Identification of Sex Pheromone of Miltochrista striata (Lepidoptera: Arctiidae)
Author(s):		Zongxiu L; Xiaoming C; Zhaoqun L; Lei B; Zhaojun X; Fida H; Zongmao C;
Address:		"Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Science, Hangzhou, China"
Journal Title:		J Econ Entomol
Year:		2019
Volume:		112
Issue:		2
Page Number:		665 - 670
DOI:		10.1093/jee/toy406
ISSN/ISBN:		1938-291X (Electronic) 0022-0493 (Linking)
Abstract:		"A species of lichen moth, Miltochrista striata (Bremer & Grey, 1852), feeds on lichens in Chinese tea plantations (Camellia sinensis (L.) O. Kuntze (Ericales:Theaceae)). A previous sex attractant screening test showed that male moths of M. striata were attracted by a mixture of (Z,Z,Z)-3,6,9-octadecatriene (Z3,Z6,Z9-18:H), (Z,Z,Z)-3,6,9-nonadecatriene (Z3,Z6,Z9-19:H), and their monoepoxy derivatives. To determine which of the component is an effective sex attractant for M. striata, the sex pheromone glands of female moths were excised and extracted with n-hexane. By comparison with the retention time and mass spectra of synthetic chemicals, two compounds in the crude extracts were identified as Z3,Z6,Z9-18:H and (Z,Z)-3,6-cis-9,10-epoxy-octadecadiene (Z3,Z6,epo9-18:H) using gas chromatography-mass spectrometry. The results of electroantennographic tests showed that the electrophysiological activities of Z3,Z6,Z9-18:H and Z3,Z6,epo9-18:H were distinctly higher than those of (Z,Z)-6,9-cis-3,4-epoxy-octadecadiene, (Z,Z)-3,9-cis-6,7-epoxy-octadecadiene, (Z,Z,Z)-3,6,9-nonadecatriene, (Z,Z)-6,9-cis-3,4-epoxy-nonadecatriene, (Z,Z)-3,9-cis-6,7-epoxy-nonadecatriene, and (Z,Z)-3,6-cis-9,10-epoxy-nonadecatriene. Field trapping showed that only a mixture of Z3,Z6,Z9-18:H and Z3,Z6,epo9-18:H attracted male moths, and the optimal mixture of these compounds was the ratio of 4:6 at 1.0-mg dosage. The results represent the first determination of the sex pheromone of a lichen moth in a tea plantation and provide a scientific basis to develop an effective protocol using sex pheromone to monitor populations of M. striata"
Keywords:		"Animals Female Gas Chromatography-Mass Spectrometry *Lepidoptera Male *Moths *Sex Attractants Miltochrista striata (Z, Z)-3, 6-cis-9, 10-epoxy-octadecadiene (Z, Z, Z)-3, 6, 9-octadecatriene sex pheromone;"
Notes:		"MedlineZongxiu, Luo Xiaoming, Cai Zhaoqun, Li Lei, Bian Zhaojun, Xin Fida, Hussain Zongmao, Chen eng Research Support, Non-U.S. Gov't England 2019/01/23 J Econ Entomol. 2019 Mar 21; 112(2):665-670. doi: 10.1093/jee/toy406"