The Q&A Archives: Inky black spots on tulip tree leaves

Question: I have a 5 year old tulip tree that is growing well, but has inky black spots on leaves. It has been rainy here in NE Ohio. It looks like black bathtub mold. I have mulch around base of tree and have seen many ants in the yard this summer. What is your opinion? How do I treat this tree?


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