White powder on the leaves of this little oak
https://lemmy.world/pictrs/image/a29f7aad-a13c-4f20-965e-dd5206e2241d.jpegHello everyone, I’m glad to have discovered this community! Can someone help me identify this disease? They come back even if you scrape them off the leaves!
![](https://kbin.social/media/cache/resolve/entry_thumb/74/6d/746df0450719be91899a97e8dfed0b7207b9cb5069610a7ce888357450f842c3.jpg)
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