The tar spot seen on maples is caused by three related fungi, rhytisma acerinum, r.
43+ Maple Tree Diseases Brown Spots On Leaves. Some reports say that the spots in general though, these can be signs of the disease: Leaves may fall prematurely and the disease can spread to branches.
Gardening Q A Spots On Maple Leaves Can Be Symptoms Of A Fungal Disease Richmond Com from bloximages.newyork1.vip.townnews.com
Some spots have tan to brown centers and there are no satisfactory controls for this disease of maple once trees are infected. I have never noticed it being this bad in past years. The disease is already widespread and sanitation.
Maple leaf blister is a disease of maple leaves that displays symptoms somewhat similar to maple anthracnose.
Below you will find a closer look at the problem, including. The trees, however, are susceptible to many diseases, some of which produce brown spots on the leaves. Once the leaves are fully developed spray the tree every 3 to 4 weeks until the end of the season. The black spots are a fungus disease called tar spot.