What disease causes white powder on roses?
This article introduces the knowledge of flower cultivation about the disease that causes white powder on roses, followed by a comprehensive introduction.
What disease causes white powder on roses?
The white powder on roses is caused by powdery mildew, a common disease that mainly affects the leaves, young shoots, and buds of roses. When severely affected, the leaves will wither and fall off, and timely treatment is required upon detection. In the early stage of the disease, it is recommended to spray a 70% methyl thiophanate solution diluted 1000 to 1500 times, or use Guoguang Triazole or Guoguang Yina for good control effects. In addition, it is necessary to change the cultivation environment, strengthen management, and take preventive measures next year.
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