A discussion of the market and policy failures associated with the adoption of herbicide-tolerant crops
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2019
- handle: 10670/1.fgdr59
- hal: hal-02278977
- doi: 10.1080/14735903.2019.1655191
- PRODINRA: 480922
- WOS: 000481641000001
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info:eu-repo/semantics/altIdentifier/doi/10.1080/14735903.2019.1655191
info:eu-repo/semantics/OpenAccess
Mots-clés
herbicide-tolerant crops integrated weed management health and environmental externalities weed resistance lock-inSujets proches
Weed suppression Weeds--Eradication Weed eradication Suppression, Weed Eradication of weeds Weed management Crops--Weed control Weed control Weeds--Management Crop plants Farm crops Industrial crops Agricultural cropsCiter ce document
Marion Desquilbet et al., « A discussion of the market and policy failures associated with the adoption of herbicide-tolerant crops », HAL-SHS : économie et finance, ID : 10.1080/14735903.2019.1655191
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Résumé
Weed control in the U.S. Midwest has become increasingly herbicide-centric due to the adoption of herbicide-tolerant (HT) crops in the 1990s. That integrated weed management (IWM) practices, including ecologicaland mechanical controls, are scarcely used is concerning. IWM would be a more sustainable form of farming fortwo reasons. First, it would reduce the negative health and environmental externalities associated with herbicide use. Second, it would reduce the selection pressure on weed populations and the development of weed resistance to some herbicides, thereby reducing the uncertainty of the long-term effectiveness of herbicidal weed control. In this context, we develop an economic framework to clarify the interplay among the different market failures that either contribute to the herbicidal ‘lock-in’ or make it problematic. We then analyse the evidence for and perceptions of these market failures based on twenty-four semi-structured interviews with farmers and experts conducted in 2017, as well as on discussions in the academic literature. To this end, we put into perspective the possible selfreinforcingeffects in the adoption path of HT crops, such as increasing farm size, changes in farm equipment, increasing incentives for simplified crop rotations, and the loss of practical knowledge of IWM practices.