Fasi fenologiche e modellizzazione del rischio botritico su vite in ambito aziendale

During a five-years trial (2001-2005), carried out in "Poggio Casciano" farm located in the viticultural area of Florence, the reliability of EPI-Botritys model (Epidemic Potential Infection) was tested and compared with others predicting models for the development of grey mould on grapevine. Obtained results, regarding Sangiovese variety, demonstrated that EPI model is able to correctly simulate the progress of epidemic and so to detect the years and the locations more susceptible towards Botrytis infection. The microclimatic conditions seem to be determinant for the definition of infection level, whereas the phenological phases demonstrated a lesser importance in conditioning the risk