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UMaine Extension: Insect Pests & Plant Diseases
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Plant Disease Images - Astilbe – Powdery Mildew Signs & Symptoms
Erysiphe polygoni
- Powdery mildew on leaf
- Leaf underside affected
Image Description: Astilbe leaf infected with powdery mildew
Image Description: Powdery mildew on underside of leaf
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Contact Information
UMaine Extension: Insect Pests & Plant Diseases491 College Avenue
Orono, Maine 04473-1295
Phone: 207.581.3880, 800.287.0279 (in Maine) or 800.287.8957 (TDD)E-mail: extension@maine.edu