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Pest Manag Sci

Title:		Pheromone antagonism in Plu tella xylostella (Linnaeus) by sex pheromones of two sympatric noctuid moths
Author(s):		Wang FM; Shen ZJ; Schal C; Zhu JJ; Zhou GX; Wang YL; Wang JR; Deng JY; Wan NF;
Address:		"Department of Plant Protection, College of Advanced Agricultural Sciences, Zhejiang A & F University, Wusu Street, Hangzhou, Zhejiang, 311300, China. Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV, USA. Department of Entomology and W. M. Keck Center for Behavioral Biology, North Carolina State University, Raleigh, NC, USA. USDA-ARS, Agroecosystem Management Research Unit, Lincoln, NE, USA. Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai Key Laboratory of Protected Horticultural Technology, Jinqi Road, Shanghai, 201403, China"
Journal Title:		Pest Manag Sci
Year:		2022
Volume:		20211002
Issue:		1
Page Number:		379 - 387
DOI:		10.1002/ps.6651
ISSN/ISBN:		1526-4998 (Electronic) 1526-498X (Linking)
Abstract:		"BACKGROUND: Responses to sex pheromones are commonly antagonized by pheromone components of closely related species. Pheromone antagonism has not been widely explored for phylogenetically distant species that have completely different pheromone components. Yet, pheromone components of sympatrically occurring species may also interfere with each other even if these species are distantly related. Here, the effects of heterospecific pheromones on electrophysiology (electroantennogram, EAG) and behavioral responses were tested on the diamondback moth Plutella xyloslella (Plutellidae) and two sympatric noctuid moth species, Spodoptera litura and Spodoptera exigua, whose larvae also feed on Brassica crops. RESULTS: The sex pheromone blend of P. xyloslella, and its components, did not elicit EAG responses in males of the two noctuid species, while sex pheromone components of the noctuid moths elicited significant EAG responses in P. xyloslella males. In wind tunnel bioassays, both (Z, E)-9, 12-tetradecadienyl acetate (ZE-9,12-14:OAc) and (Z, E)-9, 11-tetradecadienyl acetate (ZE-9,11-14:OAc), sex pheromone components from the noctuid moths, inhibited the upwind flight behavior of P. xyloslella males toward an intraspecific pheromone odor source. In Brassica fields, sex pheromone lures of P. xyloslella did not influence trap catches of the noctuid moths, while P. xyloslella pheromone lures baited with either ZE-9,11-14:OAc or ZE-9,12-14:OAc decreased trap catches of P. xyloslella males in a dose-dependent manner. Trap catches of P. xylostella males were also affected by the proximity of ZE-9,11-14:OAc or ZE-9,12-14:OAc to P. xylostella lures. CONCLUSION: The uni-directional pheromone antagonism by ZE-9,11-14:OAc and ZE-9,12-14:OAc suggests innovative semiochemical-based strategies for the management of P. xyloslella and other economically important pests in Brassica fields. (c) 2021 Society of Chemical Industry"
Keywords:		Animals *Brassica Male *Moths Pheromones *Sex Attractants/pharmacology Spodoptera Plutella xyloslella antennal response mating disruption pheromone antagonism semiochemical sympatry;
Notes:		"MedlineWang, Fu-Min Shen, Zhi-Jie Schal, Coby Zhu, Junwei J Zhou, Guo-Xin Wang, Yu-Lei Wang, Ji-Rui Deng, Jian-Yu Wan, Nian-Feng eng 20180416A03/Hangzhou Agricultural and Social Development Research Initiative Design Project/ LY19C140005/Zhejiang Provincial Natural Science Foundation/ Y3100384/Zhejiang Provincial Natural Science Foundation/ England 2021/09/20 Pest Manag Sci. 2022 Jan; 78(1):379-387. doi: 10.1002/ps.6651. Epub 2021 Oct 2"