Q.Azalea Disease
My azaleas have some kind of fungus on the stems. It covers all the branches and looks very unsightly. It has a greenish-grey color and can be rubbed off by hand. The plants are still alive and flowering but have very few leaves, so that in winter they actually look dead. Can you please advise?

Nikki
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on April 15, 2011
It is most likely lichen. This article will explain more:
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm
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