DIEBACK OF INDIVIDUAL STEMS (Occurs frequently) Individual stems wilt and die back. A red to brown lesion may be visible at the base of the affected stem. Photo by Crystal Floyd
OTHER CAUSES Other symptoms caused by chemical, animal, or environmental factors. Photo by Chad Behrendt
Plant Disease Diagnostics
University of Minnesota, Yard and Garden Clinic
Developed (1999) and maintained by Chad J. Behrendt, Ph.D. and Crystal M. Floyd