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What is causing black spots on the leaves of my maple tree? #283658

Asked October 09, 2015, 4:36 PM EDT

Can you please tell me what the black spots on our maple leaves could be?

Carver County Minnesota

Expert Response

Tar spot! The link will take you to a Michigan page on the subject.

An Ask Extension Expert Replied October 09, 2015, 5:14 PM EDT

This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

What is causing black spots on the leaves of my maple tree? #283658

Expert Response

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