bugs on ficus?
I bought a ficus nerifolia a couple of weeks ago. It had some yellowing leaves when I got it. yellow and drop leaves has continued. today inspecting I think I may have found the problem. So small its hard to get a pic, but on the bottom of this leaf is a white dot and crusting or thick dust along the leaf (maybe zoom in on it). Even harder to see is on the tops of leaves what looks like pieces of a grain of salt. Are these bugs? significantly smaller than the mealy bugs I just dealt with. no webbing like spider mites. Thanks for any replies!
And I have already treated at least thrice with alcohol/dish soap /water spray