Not a chance, at least not on big fields. They are one of the main reasons my chile fields are rotated quite a distance from year to year. I'd rather run and hide & not give them the chance. Once they (white flies) get established, it takes supreme effort to get rid of them. You must be sure and control the margins and intersticial areas as well. Treating the plants just causes them to relocate a little ways away & then come back again. They are probably THE biggest source of viral contamination and spread. Good luck! -Jim C MWPH Scorched earth, aerial spraying, nuetron bomb, etc.....