Florida the Sunshine State. Not a lot of people around here have this issue but the people that do have just as much of a hard time getting rid of them it is a constant battle
Ok here is my advise I have battled this for years and have tried all sorts of things. For the chickens 7 dust is best and when all the fleas are off apply the petroleum jelly, even if you think they are gone because trust me they are not wait till it gets real hot out. As for the coop and yard...