Figure 3.

Effect of polygodial on mycelial growth of native B. cinerea with different degrees of sensitivity to commercial fungicides. Percentage of growth inhibition determined after 48 h of incubation at different concentrations of polygodial, i.e., 20, 40, 80 and 160 ppm against: (A) multiresistant (PN2); and (B) resistant (7AC) B. cinerea isolates. Each bar represents the average of at least three independent experiments ± standard deviation. (*) denotes significant differences between all polygodial concentrations evaluated by Tukey’s test; p < 0.05.