disease_shape_globose
round
purplish blotches mainly on the epidermis at the nodes round the base of leaves and sometimes between the nodes on the lower portions of the stems. The blotches increase in size extending upward and downward along the cane and sometimes the lesions coalesce to form a discolored cane. Also known to cause dieback and witches' brooms.
Cercidospora applanata
Xenodidymella applanata