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J Chem Ecol

Title:		"Behavioral responses of the invasive Halyomorpha halys (Stal) to traps baited with stereoisomeric mixtures of 10,11-epoxy-1-bisabolen-3-OL"
Author(s):		Leskey TC; Khrimian A; Weber DC; Aldrich JC; Short BD; Lee DH; Morrison WR;
Address:		"USDA-ARS, Appalachian Fruit Research Station, Kearneysville, WV, USA, Tracy.Leskey@ars.usda.gov"
Journal Title:		J Chem Ecol
Year:		2015
Volume:		20150409
Issue:		4
Page Number:		418 - 429
DOI:		10.1007/s10886-015-0566-x
ISSN/ISBN:		1573-1561 (Electronic) 0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"The brown marmorated stink bug, Halyomorpha halys, is an invasive insect in the United States that is capable of inflicting significant yield losses for fruit, vegetable, and soybean growers. Recently, a male-produced aggregation pheromone of H. halys was identified as a 3.5:1 mixture of (3S,6S,7R,10S)-10,11-epoxy-1-bisabolen-3-ol and (3R,6S,7R,10S)-10,11-epoxy-1-bisabolen-3-ol, two stereoisomers of a natural sesquiterpene with a bisabolane skeleton, potentially existing in 16 stereoisomeric forms. In this study, we assessed attraction to pheromonal and non-pheromonal stereoisomeric mixtures of 10,11-epoxy-1-bisabolen-3-ol, which are easier to synthesize than single isomers, and evaluated dose-dependent responses to attractive mixtures in field trials. Some treatments not containing the natural pheromone components were moderately active in field-trapping studies, signifying that some stereoisomers of 10,11-epoxy-1-bisabolen-3-ol are sufficiently similar to the true pheromone in structure to trigger behavioral responses. Importantly, we found that mixtures of stereoisomers containing pheromone components were also highly attractive to H. halys, even in the presence of multiple 'unnatural' stereoisomers. Further, adult and nymphal captures were dose-dependent, regardless of whether the lure contained pheromonal or non-pheromonal components. Our findings of attraction to pheromonal and non-pheromonal stereoisomers and lack of inhibition from non-pheromonal stereoisomers of 10,11-epoxy-1-bisabolen-3-ol increase the flexibility of developing pheromone-based products for H. halys"
Keywords:		Animals *Heteroptera/growth & development *Insect Control Male Nymph *Pheromones *Sesquiterpenes Stereoisomerism;
Notes:		"MedlineLeskey, Tracy C Khrimian, Ashot Weber, Donald C Aldrich, Jeffrey C Short, Brent D Lee, Doo-Hyung Morrison, William R 3rd eng Research Support, U.S. Gov't, Non-P.H.S. 2015/04/10 J Chem Ecol. 2015 Apr; 41(4):418-29. doi: 10.1007/s10886-015-0566-x. Epub 2015 Apr 9"