Reference : Testing semiochemicals from aphid, plant and conspecific: attraction of Harmonia axyridis
Scientific journals : Article
Life sciences : Entomology & pest control
Life sciences : Biochemistry, biophysics & molecular biology
Life sciences : Agriculture & agronomy
http://hdl.handle.net/2268/80060
Testing semiochemicals from aphid, plant and conspecific: attraction of Harmonia axyridis
English
Leroy, Pascal [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Schillings, Thomas mailto [Université de Liège - ULg > Forêts, Nature et Paysage > Gestion des ressources forestières et des milieux naturels >]
Farmakidis, Julien [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Heuskin, Stéphanie mailto [Université de Liège - ULg > Chimie et bio-industries > Chimie analytique >]
Lognay, Georges mailto [Université de Liège - ULg > Chimie et bio-industries > Chimie analytique >]
Verheggen, François mailto [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Brostaux, Yves mailto [Université de Liège - ULg > Sciences agronomiques > Statistique, Inform. et Mathém. appliquée à la bioingénierie >]
Haubruge, Eric mailto [Université de Liège - ULg > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech - Entomologie fonctionnelle et évolutive >]
Francis, Frédéric mailto [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Joseph, Modeline [> >]
2012
Insect Science
Blackwell Publishing
19
372-382
Yes (verified by ORBi)
International
1672-9609
[en] aphids ; attractant ; Harmonia axyridis ; plant ; semiochemichals ; wind-tunnel
[en] Harmonia axyridis Pallas (Coleoptera: Coccinellidae) is an invasive specie affecting the dynamics and composition of several guilds. Nowadays, no biological control method is available to reduce the populations of this harmful coccinellid. Attractants and semiochemicals seem to be the best alternative but only few studies have tested the impact of semiochemicals on this Asian lady
beetle. In this work, through wind-tunnel experiments, semiochemicals from aphids [Z,E-nepetalactone, (E)-β-farnesene, α-pinene and β-pinene], from coccinellids [(-)-β-caryophyllene] and from the nettle Urtica dioica L. were envisaged as potential attractants. The nettle volatile compounds [(Z)-3-hexenol and (E)-2-hexenal] were extracted using a Clevenger Apparatus® and identified by headspace-GC-MS. The main components of the aphid alarm pheromone as well as a component of the aphid sexual pheromone strongly attracted both sexes of the Asian lady beetle while (-)-β-caryophyllene only attracted few individuals and had no
impact on the males. The nettle extract as well as the (Z)-3-hexenol oriented both males and females to the odour source. The (E)-2-hexenal was showed to have no effect on females even if this green leaf volatile attracted males. This study highlighted that some semiochemicals from aphids and from nettle extracts orientated the harlequin ladybird H. axyridis. These volatile
compounds could certainly help for an efficient biological control approach against this invasive specie.
Gembloux Agro-Bio Tech
Walloon Region Ministry Grant
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/80060
10.1111/j.1744-7917.2011.01449.x

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