I've been trying the DE on my fire ants. Can't tell if it does anything to them. I never find dead ants. So I started smothering them with it. That seems to keep them out of the run. But outside I plan to use the amdro and cover method. Be careful to cover the stuff you could be killing song birds and not know it. There seems to be about half of the people saying chickens eat ants and half saying they taste bitter and chickens don't like them. I can't stand them! I get bit almost every day. Punks.