Mature, Broad Leaf Maple Tree, Bark/trunk Issues

Question

Hi everyone, we just moved to a place that has several mature maple, alder and ash trees. There is a lot of moss on the bark/trunks of all the trees, as well as a white fungus or canker or whatever the white growth should be called. (See attached pics of the ‘Maple’ Tree). I would think we should brush or scrape off as much moss as possible, but I am open to suggestions. Also, what would you suggest for the white fungus? Thanks in advance!! Roger

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Answer 1

The white stuff is tree lichens and they are harmless. If you don't like the look, here are ways you can remove it, but it isn't necessary.
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm

Moss is not harmful either and many think it looks attractive. If you want to remove it you can do it physically or with chemical moss removers.

http://bryophytes.science.oregonstate.edu/page19.htm

https://bryophytes.science.oregonstate.edu/page20.htm

https://www.gardeningknowhow.com/ornamental/foliage/moss/moss-on-plants.htm