
Galls, caused by the fungus Exobasidium rhododendri, appear occasionally on various species of azaleas in the spring. The fungus invades expanding leaves and flower buds. Older leaves and flowers are not affected.
Similar species: Exobasidiales
By Christine Young
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Uploaded Jan 28, 2022. Captured May 31, 2021 12:29 in 3280 Franklin Ave, Millbrook, NY 12545, USA.