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Maple Trees

Q.Blaze Orange Maple Tree Leaf Symptom

Zone 53959 | p.j.farber@gmail.com added on December 14, 2021 | Answered

What is this black growth under leaves? For what it’s worth, a very old huge black walnut tree was cut down 2 years ago, approx 30 yards from our little 9 yr old maple. Thank you If you already sent the answer to this I missed it, and apologize.

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Certified GKH Gardening Expert
Answered on December 14, 2021

It is quite difficult to see, since the spot in question isn't quite in focus. What I can see looks like Maple Tar Spot (Rhytisma sp.).

This isn't usually fatal. Here is an article to help you with the disease and treamtent:


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