Fig. 1. Effect of pomegranate extract (PGE) on viability of conidia expressed as colony forming units (CFU) on potato dextrose agar (PDA) plates. Before plating conidia of Botrytis cinerea,Penicillium digitatum or P. expansum were incubated in PGE solutions at different concentrations (12, 1.2 or 0.12 g/l) for 20 h. Conidia maintained in a 1% solution of citric acid served as a control. Bars indicate standard errors of the means. For each pathogen, columns with different letters are statistically different according to the Duncan’s test (P0.05).