Powdery mildew of Mint

Erysiphe chicoracearum

Powdery mildew appears on mint leaves, stems, and petioles as a powdery, white to gray coating of fungal mycelium and spores. Infections consist of discrete circular colonies of up to ½ inch in diameter and can become numerous, coalesce and spread over the entire plant. Colonies turn gray with age. Leaves may turn yellow and drop with severe infections.

Plant Protection Products