The TRAVERSéES project aims to identify trajectories for reducing pesticide use by leveraging various territorial tools. To achieve this, we first conducted an analysis of ecological, economic, social, institutional, and individual factors that influence changes in phytosanitary practices. These insights informed the development of a socio-ecosystem model designed to simulate agricultural practice trajectories across territories, which subsequently served as a tool for prospective analysis with stakeholders in the Barrois region (Grand-Est). The project employed a range of methodologies and engaged in a transdisciplinary partnership. This approach led to the emergence of multiple, innovative proposals for territorial transition levers and highlighted the diverse factors considered by farmers, along with varying degrees of sensitivity to these influences.