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Fungus on Acer

Does anyone know what this fungus is and how to get rid of it. It is growing on a 15 year old Acer which is about 8-10ft high. After a while the branch affected by the fungus dies back. 


  • pansyfacepansyface Posts: 21,903
    edited March 2020
    First, it’s not a fungus. It’s a lichen. Or rather, two different lichens.

    Second, don’t get rid of it. It’s a sign that the air in your part of the world is fresh and unpolluted. It’s just using the branch as a perch.

    Something else is making the shoots die back.
    Apophthegm -  a big word for a small thought.
    If you live in Derbyshire, as I do.
  • BobTheGardenerBobTheGardener Posts: 11,391
    Those are two types of lichen and are harmless.  Their presence is an indicator of good air quality.  You might find them on here:

    A trowel in the hand is worth a thousand lost under a bush.
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