Paper published in a journal (Scientific congresses and symposiums)
Do root-emitted volatile organic compounds attract wireworms?
Barsics, Fanny; Latine, Rémi; Gfeller, Aurélie et al.
2012In Communications in Agricultural and Applied Biological Sciences, 77 (3), p. 561-567
Peer Reviewed verified by ORBi
 

Files


Full Text
Ext Abs 31 07 5 mep_FV_2.pdf
Author postprint (188.95 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
wireworms; Agriotes sordidus; chemical ecology; rhizosphere; volatile organic compounds; root-pest
Abstract :
[en] Wireworms are the soil dwelling larvae of click beetles (Coleoptera: Elateridae). Their importance as crop pests increases since the efficient chemical means to control them cannot be considered anymore. Therefore, many integrated pest management strategies have been investigated in the past few years. Most of them rely on the understanding of the ecology of the click beetles during their whole life cycle. We focus our work on the chemical ecology of wireworms, more precisely on the root-emitted volatile organic compounds (VOCs) that might intervene in the food-searching process of the larvae by helping them to find a suitable host-plant or by acting as key factors in the belowground defence mechanism of the plant. Here, we present our first results of dual-choice orientation tests in olfactometric pipes. Wireworms (Agriotes sordidus Illiger) were submitted individually to a variety of olfactory baits ranging from entire barley roots (Hordeum vulgare L. var. Quench) to isolated VOCs identified as part of the emitting profile. The latter was described thanks to HS-SPME samplings and GC-MS analysis, for roots grown in the exact same conditions as for the olfactometric experimentations with entire roots. Most of the experimentations gave significant results. When confronted to volatiles emitted by entire roots, wireworms significantly orientated towards the bait (χ²-goodness-of-fit test, χ²=8, P-value=0.005). This result allowed us to follow up with the same device and to progressively vary the nature of the baits. Our protocol should be used for other plant-wireworm species combinations. Our results should be taken into account in varietal selection, in crop rotation, or in trapping systems aiming at the reduction of the populations of wireworms.
Disciplines :
Entomology & pest control
Author, co-author :
Barsics, Fanny ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Latine, Rémi ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Gfeller, Aurélie ;  Université de Liège - ULiège > Sciences agronomiques > Biologie végétale
Laloux, Morgan ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie générale et organique
Lognay, Georges ;  Université de Liège - ULiège > Chimie et bio-industries > Analyse, qual. et risques - Labo. de Chimie analytique
Wathelet, Jean-Paul ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie générale et organique
Haubruge, Eric  ;  Université de Liège - ULiège > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech
Verheggen, François  ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Language :
English
Title :
Do root-emitted volatile organic compounds attract wireworms?
Alternative titles :
[en] Les composés organiques volatils racinaires attirent-ils les larves de taupin?
Publication date :
2012
Event name :
64th International Symposium on Crop Protection
Event organizer :
Université de Gand
Event place :
Gand, Belgium
Event date :
22 mai 2012
Audience :
International
Journal title :
Communications in Agricultural and Applied Biological Sciences
ISSN :
1379-1176
Publisher :
Universiteit Gent. Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen, Gent, Belgium
Volume :
77
Issue :
3
Pages :
561-567
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Projet Rhizovol
Funders :
ULiège - Université de Liège [BE]
Available on ORBi :
since 27 August 2012

Statistics


Number of views
197 (52 by ULiège)
Number of downloads
19 (19 by ULiège)

Scopus citations®
 
11
Scopus citations®
without self-citations
7

Bibliography


Similar publications



Contact ORBi