Hello all,

I planted this Wisteria about 3 months ago, it has grown very fast. A couple days ago, it developed these white spots on one of the leaves. I wanted to learn if this is a fungus, or if there is a pest at play here. Also, if I should prune that leaf, or could there be a different cause such as temperatures or water source etc. (Northern Hemisphere, PNW, temps averaging 50-65 F or 10-15 C).

Thanks,