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Do wildflower strips favor insect pest populations at field margins ?
Hatt, Séverin; Uyttenbroeck, Roel; Chevalier Mendes Lopes, Thomas et al.
2015In Agriculture and Agricultural Science Procedia
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Keywords :
Wildflower strips; Oilseed rape; Ceutorhynchus spp.; Meligethes spp.; Insect pests
Abstract :
[en] Reducing pesticide use is one the major issues of today’s agriculture. Among other possibilities, attracting and conserving pest natural enemies in agricultural landscapes by providing them habitats is promising. Wildflower strips (WFS) sown at field margins are one of these potential habitats. They are known to attract and conserve a large diversity of insects, as they provide them food resources such as pollen and nectar, as well as shelter and overwintering sites. However, the risk of attracting insect pests at field margins may represent an obstacle to their adoption by farmers. Conversely, it would be interesting if such WFS could play the role of pest trap crops. In an experimental field sown with WFS intercropped with oilseed rape (OSR) (Brassica napus L.), its coleopteran pests were trapped in both WFS and OSR using yellow pan traps between April and June 2014. More than 130 000 Meligethes spp., Ceutorhynchus spp. and Psylliodes chrysocephalla (L.) adults were trapped. Meligethes spp., Ceutorhynchus spp. were significantly more abundant in the OSR compared with WFS when adults emerged and populations reached their abundance peak. Before and between these periods, the few adults trapped were significantly more abundant in the WFS compared with the OSR. Concerning P. chrysocephala, too few individuals were caught for analysis. Results showed that OSR was more attractive than WFS when coleopteran pests were abundant. In this study, WFS sown for insect conservation may neither favour insect pest conservation at field margin, nor be considered as trap crops.
Research center :
TERRA Teaching and Research Centre - TERRA
Disciplines :
Agriculture & agronomy
Author, co-author :
Hatt, Séverin ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Entomologie fonctionnelle et évolutive
Uyttenbroeck, Roel ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Biodiversité et Paysage
Chevalier Mendes Lopes, Thomas ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Entomologie fonctionnelle et évolutive
Paul, Aman ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Science des alim. et formul.
Danthine, Sabine  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Science des alim. et formul.
Bodson, Bernard ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytotechnie des régions tempérées
Piqueray, Julien;  Natagriwal asbl
Monty, Arnaud ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Biodiversité et Paysage
Francis, Frédéric  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Entomologie fonctionnelle et évolutive
Language :
English
Title :
Do wildflower strips favor insect pest populations at field margins ?
Publication date :
2015
Event name :
The International Conference of the University of Agronomic Sciences and Veterinary Medicine of Bucharest "Agriculture for Life, Life for Agriculture"
Event organizer :
University of Agronomic Sciences and Veterinary Medicine of Bucharest
Event place :
Bucharest, Romania
Event date :
3rd - 5th June 2015
Audience :
International
Journal title :
Agriculture and Agricultural Science Procedia
eISSN :
2210-7843
Publisher :
Elsevier
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
CARE AgricultureIsLife, Gembloux Agro-Bio Tech, University of Liege
Available on ORBi :
since 20 July 2015

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