Which type of tree is most often affected by black knot disease?

Black knot disease primarily affects species within the Prunus genus, and cherry trees are the most commonly impacted by this disease. The fungus causing black knot forms dark, swollen, gnarled knots on branches, which can severely hinder the growth and health of affected trees. While other types of trees like plums, apples, and pears may experience various diseases, cherry trees are particularly susceptible to black knot due to their biology and growth patterns. The fungus thrives in wet, humid conditions, which are often present in environments where cherry trees are cultivated. Therefore, recognizing that black knot is most prevalent on cherry trees highlights the importance of monitoring and management strategies specific to this disease for the health of these trees.