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 ...
Q Could this be bacterial galls I'm seeing on older Santa Rosa plum trees? If so, should I remove the older trees with galls? A The black, gnarly growths are actually caused by a disease known as ...
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, ...
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