Why does your Paeonia suffruticosa Angel Cheeks have white powder? Diagnose the cause and fix it with our step-by-step guide.
This is the most common cause of white, flour-like patches on Tree Peony leaves. The fungus thrives in high humidity and moderate temperatures, coating the foliage and potentially causing leaves to curl or drop.
While typically associated with gray fuzz, early stages or certain environmental conditions on Paeonia suffruticosa can manifest as pale, whitish necrotic spots on petals and leaves. It often attacks tender tissue during damp spring weather.
These small insects secrete a white, waxy substance to protect themselves, which can look like white powder scattered across the stems and leaf axils of the tree peony.
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