Is it possible the immune system of the dog contributes to the frequency of flea and/or tick problems? No one seems to have mentioned that in this post so just wondering. I feed my dogs B-complex vitamins with their raw food, plus am currently giving them each 1/2 Advantix dose every 8 weeks and there has not been one tick on either of them this summer. No fleas either as far as I can tell. I think they are both pretty healthy is my point, and I am considering taking them off Advantix completely next season, keeping up with the B-complex, liver treats and raw food.
