Leaves turning white on Tall Phylox - Knowledgebase Question

Warwick,, Rh
Question by dcoletta
September 12, 2008
The leaves on my tall Phylox have turned dusty white. What is wrong with them? Should I spray them with something, cut them down, ignore the white dust?

Answer from NGA
September 12, 2008


What you describe sounds like powdery mildew, a fungal disease quite common in the late summer and early fall. It develops when nights are cool and days are warm. Once your plant develops this disease the best control is to cut away the infected foliage and remove it from the garden.

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:



[ Join now ]

Today's site banner is by krobra and is called "Lantana Dew Drops"