Gall on Rhododendrons
by
Irene
+5
I have gall growths on my rhododendron bush and am wondering if someone has an answer as to how to prevent them. I get them every spring as the flowers are emerging. They look awful and I'm sure they are a sign of some deficiency.
https://www.rhododendron.org/disease.htm
This is a fungus called Exobasidium. They don't usually do much damage and only appear in the spring. Just cut them off or use them as a conversation point.
Thanks for the question. Have wild native deciduous azaleas that sport these annually.
Contact your local county agent - you should be able to find them in the phone directory for your county.