Principal component analysis and classification techniques were used to investigate the effect on the properties of wine of different fungicide treatments performed on the grapes. 55 variables were determined, 17 on the grape just-collected and the others on the wines. 27 samples of grape and wine were considered, produced in 1992, 1993" acceptdate="and 1994. The wines were classified as a function of the production year but no important correlation was found between fungicide treatment and the wine features. The classification was performed by a SIMCA method.