Q.Maple tree bark fungus
We have a newly planted Maple tree. It has light green patches on the bark. They are easily scratched off. The patches have small round cells in it. They are about 1/32″ round. What is this? Is it harmful? And how to treat it if it is harmful?
Can you reply to Oakhaus3@hotmail.com
Downtoearthdigs
Answered on May 17, 2019
This could be something as simple a lichen forming on the trunk or more serious diseases.
These articles address these issue. You may need to do some further inspections of the tree; the trunk and leaves to help may a correct identification and then how to treat the issue.
https://www.gardeningknowhow.com/ornamental/trees/maple/maple-tree-bark-disease.htm
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm
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