ArticlePest management science2026
Intercropping mitigates incidence of the oilseed rape insect pest complex.
Article in Pest management science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Insect pests in Brassica napus crops: toward ecologically optimized integrated pest management.Pest management science · 2026Review
- Combined effects of canola plant density and insecticide management strategies on flea beetle abundance, canola defoliation, and yield across the Canadian prairies.Pest management science · 2026Article
- Field investigation of glucosinolates and morphological traits in mitigating Psylliodes chrysocephala larval infestation through crop varieties and companion planting.Pest management science · 2026Article
- Intercropping with legumes can reduce insect pest pressure but does not increase yield in winter oilseed rape (Brassica napus L.).Pest management science · 2026Article
- Behavioural manipulation of the cabbage stem flea beetle (Psylliodes chrysocephala L): Prospects for push-pull strategies in oilseed rape.Pest management science · 2026Review
- Review
- Unravelling trait-mediated effects of genotype and companion planting system on oilseed rape performance.Frontiers in plant science · 2026Article
- Implementation of practices shapes the effectiveness of agricultural diversification for arthropod related ecosystem services: a meta-analysis.Agronomy for sustainable development · 2026Review
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Authors and funding
4 authors.
Funding
Abstract
backgroundOilseed rape (OSR, Brassica napus) is a major crop requiring numerous phytosanitary treatments. It is of paramount importance to find sustainable insect pest management to guarantee long term OSR availability. Therefore, we aimed to evaluate the effect of OSR intercropping with faba beans (FB, Vicia faba) on the OSR insect pest complex. In addition, we aimed to understand the underlying mechanisms of crop protection via intercropping by distinguishing between the effects of visual and physical disruptions caused by companion plants and those of olfactory disruptions in host location and selection, and to evaluate whether this effect is direct or indirect. In a field trial run over 2 years, OSR was grown either as a monocrop or intercropped with winter FB (WFB, frost-resistant), spring FB (SFB, frost-sensitive), or polyethylene artificial plants (ART) designed to mimic FB.
resultsCompared to the monocropped OSR the OSR + FB intercropping systems significantly reduced the feeding damage caused by cabbage flea beetles (Phyllotreta spp.), the immigration of adult cabbage stem flea beetles (Psylliodes chrysocephala), the number of rape stem weevil (Ceutorhynchus napi) oviposition punctures on stems and the number of pollen beetle (Brassicogethes aeneus) per inflorescence. The intercropping with SFB had a stronger impact on C. napi and B. aeneus than intercropping with WFB. Compared to the monocropped OSR the ART treatment significantly reduced Phyllotreta spp. damage on leaves, C. napi oviposition punctures and the number of B. aeneus. The yield of OSR intercropped with SFB was higher than monocropped OSR, while the other treatments did not affect yield.
conclusionThis study shows that intercropping reduces the incidence of the OSR insect pest complex. Mechanisms of action include the direct visual and physical disruption provided by the companion plants. © 2025 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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