posted 4 years ago
I put my vote in for chickens. I have taken down a few large ant hills by dropping a full chicken tractor on top for a day. My method has been, first thing in the morning shift the tractor on top of an ant hill and take it off in the evening. When it comes off I can't see any ants at all, and the hill will be leveled by the scratching. It doesn't completely kill them, there are still a few left underground, but it takes months before they manage to build a noticeable hill. I used meat chickens, layers would probably be even better because they are more interested in scratching.
Poultry manure also makes grass grow incredibly thick.