Tar Fungus Spots On Flowering Maple

My flowering maple has developed black spots with yellow halo all over its leaves. Is that tar fungus? How can I treat my plant?

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1 Comment To "Tar Fungus Spots On Flowering Maple"

#1 Comment By GKH_Susan On 07/25/2025 @ 4:26 am

It could be, but your tree doesn't have the tar-spot look yet. This article tells how to deal with it:

https://www.gardeningknowhow.com/ornamental/trees/maple/maple-tar-spot-disease.htm ^[1]

Most fungal leaf infections can be managed by cleaning up any fallen leaves, so the disease doesn't take hold next year, too.

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[1] https://www.gardeningknowhow.com/ornamental/trees/maple/maple-tar-spot-disease.htm: https://www.gardeningknowhow.com/ornamental/trees/maple/maple-tar-spot-disease.htm

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