Just curious if anyone has ever tried it and knows a dose. After 1.5 years of living on this property and never seeing a stick tight flea, all the sudden they have been EVERYWHERE. I have been dusting the chickens and their areas for months now, and while the population density had definitely decreased, I can not get RID of them. The Comfortis/Revoluation keeps them off the dogs and cat, but I can NOT seem to keep them off the birds. It doesn't help that the neighbor has about 10 dogs that roam all over and have never seem a flea treatment in their life.