My Lilac Bush Has What Looks Like Greenish Peeling Paint On The Branches

Question

What is it? And can I save it?

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Answer 1

It's just lichens and you don't need to worry about it. It doesn't need to be removed, but some people don't like the look. Here is more:

https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm