Black knot, a fungal disease, is affecting cherry and plum trees in the Greater Columbus area, likely due to recent wet weather. The disease causes hard, black knots on branches, disrupting growth and ...

Chokecherries, North Dakota's new state fruit, are under attack from an ugly black lump. The black knot fungus is "the scourge of chokecherries. It's really bad," said Ron Smith, North Dakota State ...

If you have cherry or plum trees, now's a good time to check for a disease called black knot fungus. The fungus can go unnoticed with summer foliage but is apparent when trees are winter-bare. Also ...

I first want to thank my readers for helping me out by asking me questions. For me, one of the things I enjoy is working on these projects and helping people. A reader from Mohicanville got in touch ...

I came across this tree in nearby woods recently and while I have an idea that is a burl on a cherry tree, I wondered if one of our readers who had a career in forestry could offer me more specifics ...

Q: Can you identify this for me? [The reader sent photos.] It was on two small trees I cut down. A: Your black cherry tree had a case of black knot, a common fungal disease. When a tree is infected, ...

It's too early to begin fruit tree pruning now, but it's not too early to prepare. For homeowners with only a few fruit trees -- who can choose the ideal time for pruning their trees -- it's best to ...

A common fungal disease of cherry and plum trees is widespread in Greater Columbus, likely worsened by the abnormally wet conditions experienced locally both this spring and last spring. Black knot, ...