While the fungus primarily attacks cherry and plum trees, it can also infect apricots, peaches and any tree or shrub in the Prunus species, including ornamental cherry species.

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 ...

Knotty tree fungus strikes cherry, plum trees in Augusta City officials plan to remove 14 infected cherry trees at Monument Park, off Memorial Circle. Posted June 28, 2020 Updated June 29, 2020 ...

IN THE GARDEN: Pruning and fungicide can help ailing plum tree February 27, 2021 at 1:54 a.m. by Janet B. Carson ...

Some cherry and plum trees in the central Ohio area are turning black from a fungal disease. Here's what you need to know.

The fungus overwinters in the knots, and new spores will emerge this spring to spread the infection. The knots can vary in size and eventually merge.