White to gray powdery growth on the leaf surface.
Symptoms shown on ivy leaves would be similar to
those shown on this lilac leaf.
Photo by Chad Behrendt

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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