the white stuff could be "white fly".* } w. o* q8 F; G2 P
I had the same problem before. It because your plant is too wet. I showed the leaves twice a day for a whole week, then the white filies were all gone.: `/ N- `" I! t7 I0 i/ I$ k- ]8 z
Hibiscus is a typical plant, show helps a lot.