A bioeconomic model to train interdisciplinary research on reducing phytosanitary operations in the vineyards

A traditional method in Integrated Pest Management is to define decision thresholds linking disease incidence or severity to damages. Such thresholds are then used to schedule spraying operations. These thresholds are particularly difficult to determine in the case of vine pathogens, due to specific epidemic profiles and potentially massive crop damage. French vineyards are especially vulnerable because only traditional, non-resistant, cultivars are allowed for wine with controlled designation of origin. Optimal protection strategies being yet out of reach, innovative and environment-friendly pest management for these diseases have to be developed using expertise. In order to investigate economic means to favour environmentfriendly pest management in the vineyards, we have set up a bioeconomic model.