This Schefflera has been in the same spot in an east bathroom window since the fall. It has been growing fine (and recovering from a former owner's abuse) and producing nice dark green leaves. All of a sudden, with absolutely no changes in care (no new soil, no change in location/humidity/watering patterns) light green leaves are popping out and this one, in particular, was riddled with brown spots.
I checked for aphids and mealy bugs and can see neither.
This plant is near my newly purchased orchids, too, so I don't want something going from the Schefflera to the Orchids. (The bad leaves are older than the new orchids. ;)
Does anyone have any idea what might be going on here?