How do I keep my azaleas from being killed by a pest or disease?

There is a white flaky substance on the branches of my azaleas that seems to be killing the branches they are on. I have looked online and have not seen anything described that resembles what I have. Is this something I need to keep from spreading to other plants? Should I be thinking about getting rid of these azaleas and starting out fresh? If I do get rid of the azaleas, do I need to worry about the soil being infected?

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1 Comment To "How do I keep my azaleas from being killed by a pest or disease?"

#1 Comment By Nikki On 06/01/2012 @ 7:14 am

It sounds like it may be lichen, which is not harmful to the plants, though it does grow on plants that are stressed. However, if you want to get rid of it or simply want more info, here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm ^[1]

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