Black spots on maple leaves

[jrgagne99]

I've got a maple tree down by the water by our pond with dark dry blotches at the edges of the leaves. Looking up, it is all over the tree. This is a relatively stressed out tree that has lost two limbs over the last few years due to weaknesses from a broken-off top. We have lived here for nearly 10 years and have never noticed these dark splotches on its leaves before--- I think it is new this year.

A quick web search suggests it might be Maple Anthracnose: https://ag.umass.edu/landscape/fact-sheets/maple-anthracnose

Is anyone else seeing this on their trees, or have you experienced similar markings on your trees in the past? What was the outcome?

I don't tap this tree, but want to keep it as long as I can because it makes some nice shade down by the water.

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[BAP]

I have a few trees here that have it. I took pictures of a leaf and sent it to a NH State Forester and he confirmed that it is maple leaf anthracnose. He linked the sam Umass article as a good reference source.
22386

[Drew Pond Maple]

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Here is a leaf from a sapling right on the edge of my small pond
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This one is on a much dryer sight a few hundred feet away. Sugars don’t seem to have any spots at all

[DrTimPerkins]

Maple anthracnose is mostly an aesthetic problem, rarely a cause for major concern. Tends to happen more in wet springs or in areas with a lot of dew that don't dry quickly. If it is on a lawn tree, rake the leaves in the fall and burn them or dispose of them off-site. That will remove many of the spores.

https://ag.umass.edu/landscape/fact-sheets/maple-anthracnose