I Noticed Some Grey Areas On The Branches Of My Magnolia Tree (see Picture), What Is It?

Question

I would like to know if something is wrong with the tree, thanks in advance, Daniele

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Answer 1

These lichens don't cause issues, themselves. They can indicate that a tree has some sort of infection, and in some cases can be normal.

From this photo, I cannot tell which is the case.

If the rest of the tree is fine, and this is the only concern, then I wouldn't worry. If the tree seems to be lacking in health, then it will be necessary to check for pest or fungal/bacterial infections.

This article will explain how to get rid of it, if you choose to do so: https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm