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Azalea Gall - Exobasidium vaccinii Host: Rhododendron periclymenoides Exobasidium vaccinii,Geotagged,Lingonberry Gall,Spring,United States Click/tap to enlarge

Azalea Gall - Exobasidium vaccinii

Host: Rhododendron periclymenoides

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"Exobasidium vaccinii", commonly known as “red leaf disease,” or “Azalea Gall,” is a biotrophic species of fungus that causes galls on ericaceous plant species, such as blueberry and azalea.

Similar species: Exobasidiales
Species identified by Christine Young
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By Christine Young

Attribution Non-Commercial
Uploaded Apr 9, 2025. Captured May 19, 2024 11:32 in 91 Main St, Sharon, CT 06069, USA.
  • Canon EOS 90D
  • f/5.0
  • 1/512s
  • ISO400
  • 100mm