Brown leaves on my swamp white oak - Ask Extension
My swamp white oak is four years old and in many ways it seems generally healthy. But I am concerned about a number of leaves turning brown. See enclo...
Knowledgebase
Brown leaves on my swamp white oak #876658
Asked July 10, 2024, 12:14 PM EDT
My swamp white oak is four years old and in many ways it seems generally healthy. But I am concerned about a number of leaves turning brown. See enclosed pictures. Should I be concerned? If this is a disease I would appreciate advice. Thank-you!
Hennepin County Minnesota
Expert Response
We can't be sure what's affecting the tree by viewing the photos. However, based upon what we can see, we think the damage may have been caused by a leaf disease call anthracnose.
Oak anthracnose usually doesn't threaten tree health and no control is needed.
Compare and learn more here:
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/oak/leavesdeformed.html
https://extension.umn.edu/plant-diseases/anthracnose-trees-and-shrubs
Oak anthracnose usually doesn't threaten tree health and no control is needed.
Compare and learn more here:
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/oak/leavesdeformed.html
https://extension.umn.edu/plant-diseases/anthracnose-trees-and-shrubs
