I've had this ficus for about 3 months. About a week after I brought it home it started dropping leaves. I mean a lot of leaves! I thought it was due to transplant shock so it gave it some time and just tried to keep it happy and give it plenty of light. Well it wasn't long after that the leaves started turning brown and curling inwards and the new leaves were deforming. Now I'm seeing a lot of rust and yellow colored spots. I initially thought it might have spider mites because it was next to a plant that had an infestation, so I treated it with Captain jacks dead bug brew. Unfortunately it hasn't helped. The leaf drop has slowed considerably but no new leaves are coming out. Any ideas what might be wrong?