has anyone had white fly . Is there any thing one can do .

Yep had it until a few weeks ago, on the whole if the plants are growing strongly I don’t do very much. If it is bad I either spray with soft soap or remove the effected plants.

Do you mean recently? I had it in the greenhouse on my tomatoes two years ago and found it impossible to get rid of them with any kind of spraying. So last year I planted lots of marigolds and didn’t get a single white fly.