Azalea Plants
Q.

my azalea has mildew like stains on the branches

Zone leicester | hayley added on December 30, 2013 | Answered

My azalea has mildew like stains on all the branches which are white in colour. What is it? How can I treat it?

A.
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Heather
Certified GKH Gardening Expert
Answered on December 31, 2013

Actually, I see that you listed this in houseplants. If your azalea is a houseplant, it might be powdery mildew. This will help with that, if you think this is the issue:
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm

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Heather
Certified GKH Gardening Expert
Answered on December 31, 2013

This is lichen. It is not harmful to the plant at all. But if you would like to remove it, this article will help:
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm

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