Maple just got checked.
The dark, irregular spots on both older and newer leaves look most like fungal leaf spot on maple, encouraged by the recent heavy rain and a fresh repot. The plant may also be under mild transplant stress, which can make spotting and leaf decline worse. This is usually not a root problem first; the leaf damage is the main issue visible here.
Reduce wetness and remove the worst leaves
Keep the canopy drier, avoid overhead watering, and let the pot drain fully. Remove only the most heavily spotted leaves if they are nearly gone. Don’t fertilize yet while the tree is stressed.
Also possible, but less likely
What would prove it
Watch for new spot formation
If new leaves stay clean and the spotting slows, this was likely weather-driven leaf spot plus transplant stress. If fresh spots keep appearing quickly or leaves yellow and drop heavily, reassess for a stronger fungal/bacterial issue or root stress.
Turn this into a recovery case
One photo gives a diagnosis. Tracking proves whether the plant is recovering.
Don’t leave the diagnosis hanging 🌱
Save it now, then use the next photo to confirm if this was the right call.
Create account & save plant 🌱