On Tuesday, Nov 12, 2002, at 07:22AM, Ron Hay <ronhay@postoffice.pacbell.net> wrote: >Hello, friends, > >So far as treatment for white fly is concerned, we have found malathion >to be the only really effective treatment. Up until last year, we never >had a problem with them; but twice during 2001, and again twice during >2002, we are so afflicted. If you are using oil based Malathion, you will likely cause major damage to your tropical hibiscus. Stick with products containing imidacloprid.