Powdery Mildew
Microsphaeria alnia var. vacinii

• Leaves may be reddish green, have red spots or red rings
• Powdery white fungal growth may be seen in spots, covering the upper surface of the leaf, or not at all
• Leaves may be cupped or distorted around infections
• Infected leaves fall off prematurely
• Often seen mid to late summer
• More information on Powdery Mildew...