the white stuff could be "white fly".' V) Q9 N" Y9 X0 ]( U& O: p( S9 a
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.7 m6 R! h4 h& S( B7 b5 q4 B
Hibiscus is a typical plant, show helps a lot.