I really like Frontline Plus ... they make a spray form too that is great. When we moved here we discovered a very bad flea problem in this neighborhood -- there are a lot of "outdoors pets" that aren't protected from fleas -- so it was very hard to keep ours flea free because the neighbor's cats could wander in our yard and reinfect it. Frontline gave us the best line of defense ... still, it is important to stress that even this brand is only effective if you treat the yard seperately ... especially if you have close neighbors.
Revolution never worked for me ... but I think that it is because the flea problem was established when we moved in here ... it is probably a good brand if it is used as a preventative. It works for my mom in N.D. ...
One thing I do know is to NEVER ever use Hartz. It doesn't last and it tends to make dogs and cats sick for a couple of days after it is applied ... it is easy to be tempted to try it as an intermediate because it is cheap but it totally isn't worth it ...
Oh, btw, we're flea-free now.
