Master Gardener Decision Support Guide
Woody Ornamentals
Rhododendron
Two different fungi can cause gray mold. (Botrytis and
Altenaria) No chemical control measure are listed for
either. They are highly favored by wet weather and, hopefully,
there will be better conditions in future years.
For more information see
Note on Rhododendron Diseases
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Rhododendron,
Woody Ornamentals,
Master Gardener Decision Support Guide
Designed by David
Goforth on December 17, 1997.
Contents modified on February 18, 1998.
Contents checked on February 18, 1998.