5dt37015.jpg
En: Erysiphe pseudoregularis Fr: Erysiphe pseudoregularis De: Erysiphe pseudoregularis 10/11/2023 — Saint-Leu-la-Forêt (95320)
Upper side of the leaf.
Host-plant: Salix sp.
Pierre Duhem — All rights reserved.
Questions and comments are welcome.
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