I have an old home remedy book that say's 1 tablespoon of APPLE CIDAR VINIGAR in the meal once a day is supposed to repel flea's, mite, tick's and any other crawly's. I tried it on my dog but he refused to eat. But some of my customer's said it really does work. I personally use ADVANTIX as we live near the beach with mangroves so we have lot's of mosquito's and sandflies, but advantix stop's all them also aswell as flea's.