Whieflies once out of control IMO are the hardest insect to rid a garden of. Sticky traps, your dust buster for hand removal, neem oil, not sprayed but used to handwipe the nits from the underside of leaves are your first defense. Hot Shots and No Pest strips are pretty much useless, along with being pretty nasty shit with an incredibly long half life(the chemicals they contain). Sutra the link you posted is now down. Whats the name of the pesticide you are referring to please? I woud like to look into it.......