Elm bark beetle galleries. These beetles are responsible for the
overland transmission of the disease. Beetles colonize freshly
killed trees for reproduction and winter survival.
Photo by Department of Plant Pathology

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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