Powdery mildew on oak leaves. This is a dangerous fungal disease caused by Erysiphe alphitoides (Microsphaera alphitoides) fungus.

---

Size: 2827px × 4240px
Photo credit: © Tomasz Klejdysz / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: alphitoides, appearance., background, branch, branches, closeup, coating, damage, disease, emergent, europe, flora, foliage, forest, forestry, fungal, fungi, fungus, garden, ill, illness, infected, infection, issues, leaf, leafy, leave, leaves, microsphaera, mildew, mycelium, oak, outdoor, pathogenic, pathology, plant, powdery, quercus, sick, silvery, species, spots, summer, symptoms, tree, trees, white