Reference : Occurrence of aphid predator species in both organic and conventional corn and broad bean
Scientific journals : Article
Life sciences : Entomology & pest control
http://hdl.handle.net/2268/160473
Occurrence of aphid predator species in both organic and conventional corn and broad bean
English
Vandereycken, Axel mailto [Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Joie, Emilie mailto [Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Francis, Frédéric mailto [Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Haubruge, Eric mailto [Université de Liège - ULiège > > Vice-Recteur de Gembloux Agro Bio Tech >]
Verheggen, François mailto [Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
13-Jun-2013
Entomologie Faunistique
Presses Agronomiques de Gembloux
66
77-87
Yes (verified by ORBi)
International
2030-6318
2295-7235
Gembloux
Belgium
[en] Multi-coloured Asian ladybird ; Harmonia axyridis ; aphids ; invasive species ; interspecific interactions ; biological control ; Coccinellidae
[en] Organic farming has been suggested to enhance beneficial species abundance and diversity in agrosystem habitats. In this study, the abundance of aphid predators was compared in organic and conventional corn and broad bean fields during a two-year inventory. In both farming strategies, there were no differences between species diversity. Five aphid predator species were mainly observed: Coccinella septempunctata L. 1758 (Coleoptera: Coccinellidae), Propylea quatuordecimpunctata (L. 1758) (Coleoptera: Coccinellidae), Harmonia axyridis Pallas 1773 (Coleoptera: Coccinellidae), Chrysoperla carnea (Stephens 1836) (Neuroptera: Chrysopidae) and Episyrphus balteatus (De Geer 1776) (Diptera: Syrphidae). Differences in abundance of aphidophagous species between conventional and organic crop fields were observed even if not always in favour of the latter condition. The abundance of the five above- mentioned aphidophagous species varied for the most part according to almost all the observed parameters, including sampled year, crop and agricultural practices. In conclusion, our findings do not support organic practices in corn and broad bean as key options to increase the biodiversity and abundance of aphid natural enemies.
DGO3
http://hdl.handle.net/2268/160473

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