17
Aug
Black Spots On Maple Leaves. This occurs when the tree loses water from its leaves faster than it can absorb it from the soil. This is typically only recommended if your tree continually gets maple tar or its a prevalent issue in your area. Every year about this time I start receiving questions on the ugly black spots that homeowners are seeing on their maple trees. Your trees overall health likely wont be compromised and with a little TLC your trees leaves will return to normal by the next growing season.
Its fine to wait for leaves to fall naturally. Then they progress to the black spots on the leaves you see above. We have several maples where the edges of the leaves are turning black. How to Treat and Prevent Black Spots on Maple Leaves. This is typically only recommended if your tree continually gets maple tar or its a prevalent issue in your area. Like leaves falling in autumn.
I noticed that the maples in my neighborhood have black spots on them.
This occurs when the tree loses water from its leaves faster than it can absorb it from the soil. What is Maple Tar Spot Disease. The spots first appear as small yellow spots in June. Their size ranges from one-eighth of an inch to an inch or more in diameter on the Norway Maple. Usually spots on this maple appear in the spring as small spots and over time the spots become large and even half the leaf area. In many cases these leaves with the black spots are dropping early which adds to the concern.