In Reply to: Re: white fly posted by gardener on September 02, 2008 at 07:32:46:
Being a professional nurseryman for twenty five years, I've battled white fly since they became a menice. The best product I've found is a bio-pesticide called Botaniguard which is a fungus (invisible to the eye) that lays it's spores on the insects and they burro into their bodies and hatch. Total control. The strain is Beauveria bassiana Strain GHA. Might be dificult to locate for home owners, and is about 75$ a quart. Have you tried insecticidal soap?