Black or tar spot - maple tree - Ask Extension
Please confirm that this established maple tree has black or tar spot. I believe this is a benign or non-threatening issue.
Thank you.
Knowledgebase
Black or tar spot - maple tree #875067
Asked June 28, 2024, 9:45 AM EDT
Please confirm that this established maple tree has black or tar spot. I believe this is a benign or non-threatening issue.
Thank you.
Oakland County Michigan
Expert Response
Hi,
I think this is actually a different but equally common fungal infection called anthracnose. There is still no action needed other than raking and bagging fallen leaves to prevent reinfection next season.
https://www.canr.msu.edu/news/maple_leaf_blister_and_anthracnose_two_foliar_diseases_that_can_appear_on_s
Ruth
I think this is actually a different but equally common fungal infection called anthracnose. There is still no action needed other than raking and bagging fallen leaves to prevent reinfection next season.
https://www.canr.msu.edu/news/maple_leaf_blister_and_anthracnose_two_foliar_diseases_that_can_appear_on_s
Ruth
