When To Cut Back Peonies With Powdery Mildew
When to cut back peonies with powdery mildew
Remove and discard any affected leaves, as well as any that have dropped to the ground, and treat the rest of the plant preventatively. If you see powdery mildew on buds, clip and discard them as well. Thoroughly clean and disinfect any cutting tools that were used in the process.