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Discrepancy in laboratory and field attraction of apple fruit moth Argyresthia conjugella to host plant volatiles

Knudsen, Geir and Bengtsson, Marie and Kobro, Sverre and Jaastad, Gunnhild and Hofsvang, Thor and Witzgall, Peter (2008). Discrepancy in laboratory and field attraction of apple fruit moth Argyresthia conjugella to host plant volatiles. Physiological entomology. 33:1, 1-6
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Official URL: http://dx.doi.org/10.1111/j.1365-3032.2007.00592.x

Abstract

Apple fruit moth Argyresthia conjugella is a specialist seed predator of rowan Sorbus aucuparia. Large-scale synchronous fluctuation of seed production in rowan (i.e. named masting) drives the apple fruit moth to seek alternative host plants such as apple, during years when rowan berries are not available for oviposition. The role of plant volatile compounds in the attraction of gravid apple fruit moth females is studied in a laboratory wind tunnel. Volatiles from rowan branches with green berries stimulate female moths to fly upwind and to land at the odour source. By contrast, females are not attracted to rowan branches without green berries, and they are not attracted to apple, demonstrating that the chemical stimulus from rowan berries is required for attraction. Attraction to synthetic compounds identified from rowan, anethole and 2-phenyl ethanol confirms the role of plant volatiles in host finding. These two compounds, however, show a discrepant behavioural effect in wind tunnel and field tests. Field traps baited with 2-phenyl ethanol capture female moths but anethole does not produce significant captures. Wind tunnel tests produce the opposite results: moths fly upwind towards the anethole lure, whereas 2-phenyl ethanol is not attractive at all. Wind tunnel attraction to 2-phenyl ethanol is achieved by adding odour from a rowan branch without berries, which is not attractive on its own. This finding demonstrates that interaction with the background odour contributes to the behavioural effect of plant volatile stimuli in the field.

Authors/Creators:Knudsen, Geir and Bengtsson, Marie and Kobro, Sverre and Jaastad, Gunnhild and Hofsvang, Thor and Witzgall, Peter
Title:Discrepancy in laboratory and field attraction of apple fruit moth Argyresthia conjugella to host plant volatiles
Series/Journal:Physiological entomology (1365-3032)
Year of publishing :2008
Volume:33
Number:1
Page range:1-6
Number of Pages:6
Publisher:Wiley-Blackwell, for Royal Entomological Society
ISSN:1365-3032
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Agris subject categories.:F Plant production > F40 Plant ecology
F Plant production > F63 Plant physiology - Reproduction
Q Food science > Q01 Food science and technology
X Agricola extesions > X30 Life sciences
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Behavioural Sciences Biology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Food Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Horticulture
Keywords:anethole, background odour, host plant attraction, 2-phenyl ethanol, rowan, volatile organic compounds
URN:NBN:urn:nbn:se:slu:epsilon-e-1609
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-1609
Additional ID:
Type of IDID
DOI10.1111/j.1365-3032.2007.00592.x
ID Code:10719
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: SLUpub Connector
Deposited On:29 Aug 2013 06:47
Metadata Last Modified:02 Dec 2014 11:02

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