Spyke

Looks like powdery mildew to me. A fungicide should clear it.

4
PlantJamreply
lemmy.world

Mealy bugs are much bigger than this. This almost just looks like water residue on the leaves.

2

Not necessarily. At the beginning of the infestation the bugs themselves are very small and don't move much. I had an infestation two years ago.

2

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What is happening to this oak sapling? | Spyke