Question From: D. Nye - Hindolveston, England, United Kingdom
Q: My Dahlia leaves have become white and the blooms appear to have lost colour. I assume a fungal desease. How do I treat it please?
Spray the plant with a fungicide. Take a sample of the diseased plant to your local garden center for an accurate Id and a recommendation of product for control of the disease. Best And Happy Yardening, Nancy