Figure 5.

Effects of compounds 4, 6, 7, and 11 on the development of tomato late blight. (a) Control efficacy of compounds 4, 6, 7, and 11 against tomato late blight. The bars represent the mean ± standard deviation of two runs with three replicates. (b) Representatives of plants treated with compound 6. Plants were inoculated with a spore suspension of Phytophthora infestans 1 day after treatment with compound 6. NC, treatment with the 0.025% Tween 20 solution containing 5% MeOH was used as a negative control; PC, a chemical fungicide dimethomorph (10 µg/mL) was used as a positive control.