Fungus on Carpinus?

I have small black spot and on twigs of my hornbeams that’s spreading and causing branch die back. I’m seeing similar tip die back on a nearby River Birch and Limber Pine but no spotting. Is this fungal? What is…

Black Spots on Maple tree

We have several very large Maples in our backyard. This year the leaves have black spots and eventually the black covers the entire leaf which falls off. The tree still produced keys. We have 3 maples in our back yard…

Hornbeam spots on twigs

Hello, I work at Sheridan Nurseries and I received this sample of a Hornbeam twig with black spots on the dead portions that did not come back to life after this winter’s harsh weather. Do you think it IS a…