Poster (Scientific congresses and symposiums)
Crop association to improve aphid biological control
Chevalier Mendes Lopes, Thomas; Bosquée, Emilie; Bodson, Bernard et al.
2014Xth European Congress of Entomology
 

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Keywords :
wheat; pea; crop associations; aphids; predators; parasitoids; froment; pois; associations culturales; pucerons; prédateurs; parasitoïdes
Abstract :
[en] This research focused on the development of sustainable alternative methods to control aphids, giving special emphasis on cultural practices and plant management systems. Increasing the diversity within crops may have several beneficial effects on pest control, creating attractive habitats for indigenous beneficial fauna and simultaneously deterring pests (“push-pull” approach). In this field study, two wheat/pea associations (mixed cropping and strip cropping) where compared to monocultures of pea and wheat. The abundance and diversity of adult aphidophagous beneficials (predators and parasitoids) were accessed weekly, using yellow traps, while aphids were observed directly on plants. All individuals were identified down to the level of species. In both crops, the percentage of aphid infestation and density of colonies were significantly higher in monocultures during the abundance periods. The mixing was particularly beneficial for the pea, while strip cropping was more efficient for the wheat. Concerning beneficials, their abundance was also significantly higher in monocultures, comparing with the other treatments. This study shows that increasing diversity within crops can prevent them from aphid infestations. However, additional methods are needed to attract more efficiently the aphidophagous beneficials, in order to promote the natural control of aphids.
Disciplines :
Entomology & pest control
Author, co-author :
Chevalier Mendes Lopes, Thomas ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Bosquée, Emilie ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Bodson, Bernard ;  Université de Liège - ULiège > Sciences agronomiques > Phytotechnie des régions tempérées
Francis, Frédéric  ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Language :
English
Title :
Crop association to improve aphid biological control
Alternative titles :
[fr] L'association culturale pour promouvoir le control biologique des pucerons
Publication date :
August 2014
Event name :
Xth European Congress of Entomology
Event organizer :
Royal Entomological Society
Event place :
York, United Kingdom
Event date :
du 3 au 8 août 2014
Audience :
International
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Available on ORBi :
since 12 August 2014

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