Powdery Mildew of African Violet
Golovinomyces cichoracearum
African Violetfungal
A fungal disease that coats African Violet leaves and flowers in white powdery growth, especially in cool, still air.
Symptoms
White, powdery fungal patches on leaves, stems, and flowers, sometimes causing leaf distortion or premature flower drop.
Cause & development
A generalist powdery mildew species also documented on many other ornamentals; commonly implicated in African Violet powdery mildew. EPPO code ERYSCI.
Favorable conditions
- •Cool temperatures with still, humid air
- •Poor air circulation
- •Overcrowded plants
Management
- 1Improve air circulation around the plant
- 2Avoid cool, damp conditions with stagnant air
- 3Remove heavily affected leaves
- 4Apply a labeled fungicide if the problem persists
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