What is causing black spots on red maple leafs?
Many of the leafs on a young red maple have black spots. What is the cause of this? Thank you, Becky
Certified GKH Gardening Expert
This is called Maple Tar Spot, which is a fungal infection that can be easily cured. This article will help: https://www.gardeningknowhow.com/ornamental/trees/maple/maple-tar-spot-disease.htm