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 ...

An effort to beautify the Falls has failed. Why? Not because the desired effect was not achieved, but due to a plant disease called black knot. Black knot is a fungus which attacks some fruit trees – ...

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, ...