Reference : Attraction of wireworms to root-emitted volatile organic compounds of barley
Scientific congresses and symposiums : Unpublished conference
Life sciences : Entomology & pest control
http://hdl.handle.net/2268/129531
Attraction of wireworms to root-emitted volatile organic compounds of barley
English
[en] L'attraction des larves de taupins vers les composés organiques volatils racinaires de l'orge
Barsics, Fanny mailto [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Haubruge, Eric mailto [Université de Liège - ULg > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech >]
Verheggen, François mailto [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
24-May-2011
Yes
No
International
63d International Symposium on Crop Protection
24 mai 2011 -
University of Ghent
Gand
Belgium
[en] Wireworms ; Agriotes sordidus ; root-pest ; rhizosphere ; barley ; chemical ecology
[en] Wireworms, the belowground larvae of click beetles (Coleoptera: Elateridae), represent a threat for various crops, including cereals, potatoes and small fruits, in many countries. In order to promote the development of bio-pesticides or the selection of resistant varieties, studies concerning the close relationship between wireworms and the roots they attack have to be conducted. Indeed, lacks of knowledge in the chemical ecology of these small but consequent pests baffle such achievements. Here, we studied the reactions of wireworms (Agriotes sordidus Illiger) facing root-emitted volatile organic compounds (VOCs) of barley.
We first tested the ability of wireworms to orientate towards a blend of volatile compounds emitted by seven day’s old mashed roots of barley grown in vermiculite. We used a Y-shaped horizontal olfactometre, which inferior half was filled with compressed and humidified vermiculite. Wireworms were able to detect blends of volatiles emitted by mashed roots, and to orientate their foraging behaviour toward the emission source. Volatile compounds were identified from barley roots using SPME-GC-MS and several chemicals were identified.
This study is part of a larger programme which purpose is the identification of VOCs emitted by the roots of barley and different actors of the rhizosphere, and to assess their semiochemical functions.
University of Liege
Projet Rhizovol
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/129531

There is no file associated with this reference.

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.