Physical damage to the leaves, branches, bark, trunk, or roots of the plant.
Damage to the leaves can cause shredding and/or premature loss
of healthy green leaves. Branches, trunks, or roots may
break or crack, causing dieback or death of the tree.
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

For plant disease questions contact the Yard and Garden Line Content Last Updated 09/07/00 View University of Minnesota Disclaimer