It is recommended to monitor the level of disease attack at all times. Apply spraying when the first signs of disease appear. For effective control, spray thoroughly on both the upper and lower surfaces of the leaves. If necessary, repeat the spraying at intervals of 14-28 days for cocoa, 7 days for tobacco and black pepper, 4-5 days for choy-sam, and 7-10 days for tomatoes, chilies, mangoes, long beans, French beans, and cucumbers, depending on the severity of the infestation. If treatment needs to be repeated, alternate with fungicides from different groups that have different modes of action.