**** “feed them grits” ****
I grind dent corn and feed it to Cutter Ants and it works very well. Cutter ants farm and eat Fungus, corn is or has a natural fungicide and destroys their fungus farm.
Fire ants have a different diet.
I wasn't willing to attack them head on for obvious reasons, but one cold morning just before frost, I bored a tunnel underneath the rock with a power drill and long auger. Then I diverted a roof drain pipe toward that tunnel. Between the rains of late fall and a cold winter, they were gone by spring thaw, except for a lot of corpses.