rhododendron ailment - Knowledgebase Question

Silver Spring, MD
Question by carr94
April 20, 2005
My rhododendrons have large brown spots on the leaves and some leaves have turned completely brown. What is likely wrong with them and what should I use to treat them?


Image
Answer from NGA
April 20, 2005

0

Rhodies are prone to a fungal leaf spot so perhaps that's what's causing the problem. Fungal leaf spots are irregular in size and color; some have red-brown borders with silvery gray centers. Very small black dots (fruiting structures of the fungi) are sometimes visible in the center of the spot or in concentric rings. If this sounds like the damage on the leaves to your rhodies, remove and destroy the affected leaves and spray with a registered fungicide after flowering has finished. Repeat at 10-14 day intervals if weather is wet.

Best wishes with your 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:

Username:

Password:

[ Join now ]

Today's site banner is by rocklady and is called "Wildflower"