Skip navigation

Composition of strawberry floral volatiles and their effects on behavior of strawberry blossom weevil, anthonomus rubi

Composition of strawberry floral volatiles and their effects on behavior of strawberry blossom weevil, anthonomus rubi

Mozūraitis, Raimondas ORCID: 0000-0002-1719-2294, Hall, David ORCID: 0000-0002-7887-466X, Trandem, Nina, Ralle, Baiba, Tunström, Kalle, Sigsgaard, Lene, Baroffio, Catherine, Fountain, Michelle, Cross, Jerry, Wibe, Atle and Borg-Karlson, Anna-Karin (2020) Composition of strawberry floral volatiles and their effects on behavior of strawberry blossom weevil, anthonomus rubi. Journal of Chemical Ecology, 46 (11-12). pp. 1069-1081. ISSN 0098-0331 (Print), 1573-1561 (Online) (doi:https://doi.org/10.1007/s10886-020-01221-2)

[img]
Preview
PDF (Open Access Article)
30892 HALL_Composition_Of_Strawberry_Floral_Volatiles_And_Their_Effects_On_Strawberry_Blossom_Weevil_(OA)_2020.pdf - Published Version
Available under License Creative Commons Attribution.

Download (851kB) | Preview

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 α-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.

Item Type: Article
Uncontrolled Keywords: ,nthonomus rubi, fragaria x ananassa, fragaria vesca, floral odors, semiochemicals, pest control
Subjects: S Agriculture > SB Plant culture
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Natural Resources Institute
Faculty of Engineering & Science > Natural Resources Institute > Agriculture, Health & Environment Department
Faculty of Engineering & Science > Natural Resources Institute > Chemical Ecology Research Group
Last Modified: 20 Jan 2021 12:22
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
Selected for REF2021: None
URI: http://gala.gre.ac.uk/id/eprint/30892

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics