Oak Mildew (Erysiphe alphitoides) by Stephen Luk


18-Oct-2022

Host: Quercus robur
Tentative ID based on host association. The other prevalent species on oaks, E. quercicola, is reportedly present in North America as per Bradshaw et al. (2022): https://onlinelibrary.wiley.com/doi/10.1111/efp.12742
iNaturalist observation

Canon EOS 60D
1/1000s f/5.6 at 100.0mm iso400 full exif

other sizes: small medium large auto

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