And high sustained costs to synthesize new chemicals. In Italy, no commercial fungicides are authorized for the control of decay of table grapes after harvest; sulfur dioxide (SO2) is permitted as an adjuvant and is effective in reducing gray mold development during storage. However, alternatives to SO2 are required in view of hazards for human health and of the difficulties in using SO2 with colored grapes (Nelson and Richardson, 1967) or with grapes stored into cardboard boxes because of SO2 absorption by the cardboard (Lichter et al., 2008)