We use Comfortis too. It's supposed to be EPA and FDA approved. You may want to do a search, both YT and Web, for DE, the stuff they use in pool filters. It's supposed to pierce their exoskeleton and dry them out. Bad thing about DE is that it is a very fine powder. I have tried both chemically and naturally methods of flea control. I can PM you some links if you would like to look at them. It's always flea time in FL.
__________________ Zack, Zeke, Zoey, Zipp RIP 6/28/12  |