Articular atividade de trabalho e construção territorial da atividade para compreender e transformar o uso de produtos fitofarmacêuticos e dos seus protagonistas

under real working conditions. Discussions with business owners led to the establishment of a relationship between the processing activity carried out, and the mechanisms and social practices which define the national and local organization of the use of phytopharmaceutical products in the wine producing context. The interconnection of these two levels of activity analysis (work activity and territorial construction of activity) made it possible to see how the national and local territorial context (social, political and historical) can hinder the constructive dimension of pesticide risk prevention. The article follows winegrowers during the process of regaining control of their work through ergonomic actions at both the company and territory levels.