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J Chem Ecol

Title:		"Composition of Strawberry Floral Volatiles and their Effects on Behavior of Strawberry Blossom Weevil, Anthonomus rubi"
Author(s):		Mozuraitis R; Hall D; Trandem N; Ralle B; Tunstrom K; Sigsgaard L; Baroffio C; Fountain M; Cross J; Wibe A; Borg-Karlson AK;
Address:		"Department of Zoology, Stockholm University, Stockholm, Sweden. raimondas.mozuraitis@su.se. Natural Resources Institute, University of Greenwich, Chatham Maritime, Kent, ME4 4TB, UK. NIBIO, Norwegian Institute of Bioeconomy Research, NO-1431, As, Norway. Latvian Plant Protection Research Centre, Riga, LV-1039, Latvia. Department of Zoology, Stockholm University, Stockholm, Sweden. Department of Plant and Environmental Sciences, University of Copenhagen, 1871, Frederiksberg C, Denmark. Agroscope, Research Center Conthey, 1964, Conthey, Switzerland. NIAB EMR, East Malling, Kent, ME19 6BJ, UK. Norwegian Centre for Organic Agriculture, NO-6630, Tingvoll, Norway. Department of Chemistry, School of Engineering Science in Chemistry, Biotechnology and Health, KTH, Royal Institute of Technology, 10044, Stockholm, Sweden. Department of Chemical Engineering, Mid Sweden University, 85170, Sundsvall, Sweden"
Journal Title:		J Chem Ecol
Year:		2020
Volume:		20201008
Issue:		11-Dec
Page Number:		1069 - 1081
DOI:		10.1007/s10886-020-01221-2
ISSN/ISBN:		1573-1561 (Electronic) 0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"The strawberry blossom weevil (SBW), Anthonomus rubi, is a major pest in strawberry fields throughout Europe. Traps baited with aggregation pheromone are used for pest monitoring. However, a more effective lure is needed. For a number of pests, it has been shown that the attractiveness of a pheromone can be enhanced by host plant volatiles. The goal of this study was to explore floral volatile blends of different strawberry species (Fragaria x ananassa and Fragaria vesca) to identify compounds that might be used to improve the attractiveness of existing lures for SBW. Floral emissions of F. x a. varieties Sonata, Beltran, Korona, and of F. vesca, were collected by both solid-phase microextraction (SPME) and dynamic headspace sampling on Tenax. Analysis by gas chromatography/mass spectrometry showed the floral volatiles of F. x ananassa. and F. vesca were dominated by aromatic compounds and terpenoids, with 4-methoxybenzaldehyde (p-anisaldehyde) and alpha-muurolene the major compounds produced by the two species, respectively. Multi-dimensional scaling analyses separated the blends of the two species and explained differences between F. vesca genotypes and, to some degree, variation between F. x ananassa varieties In two-choice behavioral tests, SBW preferred odors of flowering strawberry plants to those of non-flowering plants, but weevils did not discriminate between odors from F. x ananassa and F. vesca flowering plants. Adding blends of six synthetic flower volatiles to non-flowering plants of both species increased the preference of SBW for these over the plants alone. When added individually to non-flowering plants, none of the components increased the preference of SBW, indicating a synergistic effect. However, SBW responded to 1,4-dimethoxybenzene, a major component of volatiles from F. viridis, previously found to synergize the attractiveness of the SBW aggregation pheromone in field studies"
Keywords:		"Animals Behavior, Animal Benzaldehydes/*chemistry/metabolism Flowers/chemistry/metabolism Fragaria/*chemistry/metabolism Gas Chromatography-Mass Spectrometry Odorants/analysis Pheromones/analysis Plant Extracts/chemistry/metabolism Principal Component Ana;"
Notes:		"MedlineMozuraitis, Raimondas Hall, David Trandem, Nina Ralle, Baiba Tunstrom, Kalle Sigsgaard, Lene Baroffio, Catherine Fountain, Michelle Cross, Jerry Wibe, Atle Borg-Karlson, Anna-Karin eng Softpest Multitrap/CORE Organic II, FP7 ERA-Net/ 2020/10/09 J Chem Ecol. 2020 Dec; 46(11-12):1069-1081. doi: 10.1007/s10886-020-01221-2. Epub 2020 Oct 8"