Question From: J. Frazer - Morganfield, Kentucky, United States
Q: what causes white spots on geranium leaves
A: If the spots are fuzzy, it's the fungal disease powdery mildew. Chemical burn is another possibility - water soluable fertizer. I recommend you take sample of the effected leaves to an independent garden center or nursery, preferably one that grows these plants for an accurate ID and method of control if needed. Best And Happy Yardening, Nancy
