What is the control method of Lagerstroemia indica powdery mildew?

Powdery mildew, also known as powdery mildew, harms Chinese rose, rose, Euonymus japonicus, kumquat and so on. It often harms the leaves, stems and flower stalks of flowers and trees. A layer of white powder appeared on the surface of the affected area, and the leaves withered when the condition was serious. This disease easily occurs in hot, humid and unventilated environments.

The control method can be spraying thiophanate and carbendazim, and it is recommended to scrape with a bamboo knife. Simple.