What to do about the powdery mildew on Chinese roses
This article introduces some small experiences in green plant maintenance on how to deal with powdery mildew on Chinese roses. Let's learn about it together.
What to do about the powdery mildew on Chinese roses
When Chinese roses have powdery mildew, it is necessary to strengthen management, ensure good ventilation, and expose the plants to sunlight. Apply more phosphorus and potassium fertilizers during fertilization, and reduce the amount of nitrogen fertilizers to enhance disease resistance. It is also important to promptly cut off and burn the diseased leaves and branches to prevent further infection. In addition, thorough chemical control should be applied. You can spray lime sulfur in early spring and use carbendazim, mancozeb, and thiophanate-methyl during the growing season. Spray myclobutanil when the disease occurs.
The above[] introduces the complete content on how to deal with powdery mildew on Chinese roses. Green plant enthusiasts can refer to this aspect.