Tar spot is caused by a fungal infection. In spring, spores are released from the fungus. They become airborne in the wind, ...

Have you noticed discoloration on your maple tree leaves this year? You aren't the only one. Here's what you should know ...

Anthracnose is a common spring disease on maple trees. Several different fungi can cause the symptoms we describe as anthracnose.

View full size Peggy Turbett, The Plain Dealer Fungal disease can cause leaf spots on maple trees. Every maple tree in my yard has spots, all the way to the top. Are they doomed?

Q. My maple tree has black spots on the leaves that just appeared recently. Should I be concerned about this? What should I do? A. Sometimes wet conditions earlier in the season can cause problems ...

Maple leaves with a fungus known as tar spot" disease are seen on the ground under a Maple tree at Albany Rural Cemetery on Monday, Sept. 11, 2017 in Menands, N.Y. (Lori Van Buren / Times Union) ...

The wet, cool weather has been ideal for anthracnose, a disease caused by a tree fungus that affects oak, maple and ash trees. ... making it more susceptible to other diseases and pests.

There are lots of brown spots on the leaves of my sugar maple this spring. I have never noticed it being this bad in past years. What is this and what can I do for my tree?— Graham Robinson ...

According to Isabel Munck, a plant pathologist with the USDA Forest Service based in Durham, black tar spot is a common disease in maple trees that begins when a fungus infects the plant's leaves ...

Q.I moved into a house with some large, healthy-looking shade trees. The leaves on the sycamores and maples are developing brown spots and some of the leaves seem to be curling and dying. Does this… ...