Valutazioni sulla convenienza economica ad adottare modelli agrometeorologici per la difesa della vite

Plasmopora viticola is an important disease that can heavily affect the quality and quantity of wine production. In Central Italy the disease control is based on a regular scheduling of about 9 fungicide applications from May to August, with a cost spanning from 250 to 350 €/ha just for products purchase. In this work the applicability and the economic convenience of an agrometeorological system for crop protection, basd on the simulation model PLASMO, was analysed and compared to regular application scheduling method. The spatial variability of air temperature in relation to the topograhy of the vineyard was analysed in order to determine the minimum number of meteorological stations that were needed to represent the spatial variability of air temperature. A case study was analysed considering a viticultural farm with 30 ha of vineyard in hilly area. For the studied year, the strategy based on the use of an agrometeorological system composed by three weather stations resulted economically convenient.