Article (Scientific journals)
Combining E-β-farnesene and methyl salicylate release with wheat-pea intercropping enhances biological control of aphids in North China
Xu, Qingxuan; Hatt, Séverin; Han, Zongli et al.
2018In Biocontrol Science and Technology, 28 (9), p. 883–894
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Keywords :
Biological control; integrated pest management; push-pull strategy; semiochemical
Abstract :
[en] Combining intercropping with the release of semiochemicals may strengthen biological control of aphids as a push-pull strategy that simultaneously repels aphids and attracts their natural enemies. This hypothesis was tested in the Henan Province of China in 2016 where aphids, their natural enemies and mummies were trapped and observed on crops in three treatments: wheat-pea strip intercropping solely (control), intercropping combined with the release of E-β-farnesene (EBF) and intercropping combined with the release of methyl salicylate (MeSA). Each treatment was repeated four times. The abundance of aphids throughout the growing season (9 weeks between March and May) was significantly decreased and the abundance of natural enemies and mummies were significantly increased in treatments with releases of semiochemicals compared to intercropping solely. The effect was stronger with MeSA than with EBF on the control of Rhopalosiphum padi and pea aphids as well as on the attraction of lacewings and hoverflies. Indeed, lacewings and hoverflies were on average twice more numerous in MeSA than in the other treatments. These results show that combining wheat-pea intercropping with the release of EBF or MeSA can significantly reduce aphid density and attract their natural enemies and that this effect is strengthen with MeSA when compared to EBF.
Research Center/Unit :
TERRA Teaching and Research Centre - TERRA
Disciplines :
Entomology & pest control
Agriculture & agronomy
Author, co-author :
Xu, Qingxuan;  Chinese Academy of Agricultural Science > Institute of Plant Protection > State Key Laboratory for Biology of Plant Diseases and Insect Pests, MoA-CABI Joint Laboratory for Bio-safety
Hatt, Séverin ;  Université de Liège - ULiège > R&D Direction : Chercheurs ULg en mobilité
Han, Zongli;  Chinese Academy of Agricultural Science > Institute of Plant Protection > State Key Laboratory for Biology of Plant Diseases and Insect Pests, MoA-CABI Joint Laboratory for Bio-safety
Francis, Frédéric  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Gestion durable des bio-agresseurs
Chen, Julian;  Chinese Academy of Agricultural Science > Institute of Plant Protection > State Key Laboratory for Biology of Plant Diseases and Insect Pests, MoA-CABI Joint Laboratory for Bio-safety
Language :
English
Title :
Combining E-β-farnesene and methyl salicylate release with wheat-pea intercropping enhances biological control of aphids in North China
Publication date :
2018
Journal title :
Biocontrol Science and Technology
ISSN :
0958-3157
eISSN :
1360-0478
Publisher :
Informa UK Limited, trading as Taylor & Francis Group, United Kingdom
Volume :
28
Issue :
9
Pages :
883–894
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
National Key R & D Plan in China (2016YFD0300701, 2017YFD0201701)
Cooperation Project between Belgium and China from the Ministry of Science and Technology (MOST; 2014DF32270)
National Science Foundation of China (31371946)
CARE AgricultureIsLife (University of Liège)
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