we treat the yard for fleas and ticks, and other insects, as well. Our dog is a wire fox terrier, and he has an under coat, and the little mosquitos, get into that, on his legs and bite them. I think treating the yard is most important, and there is suppose to be alot more fleas this year. I also am keeping his fur alot shorter in summers because of it. I use the gentle shampoo on him, the tear free, and sometimes use a flea and tick shampoo, Adams brand, which is good, but probably is harsh as well. He does have allergies, so I don't use a conditioner much. No perfumes or sprays that have an odor.