Figure 2.

Effect of polygodial on mycelial growth of Botrytis cinerea in solid media. (A) Photographs of hyphal growth of B. cinerea in the absence and presence of 160 ppm of polygodial, respectively; and (B) the percentage of growth inhibition determined after 48 h of incubation at different concentrations of polygodial, i.e., 20, 40, 80 and 160 ppm. Each bar represents the average of at least three independent experiments ± standard deviation. * indicates significant differences between each polygodial concentration, evaluated by Tukey’s test; p < 0.05.