This may seem cruel, but if it works, it works.
HOW TO GET RID OF FIRE ANTS
1. Go to Home Depot and buy two cans of black spray paint.
2. Go home and stir up the ant mounds really well.
3. Use at least 1 can of spray per mound and paint all the ants.
When the ants realize they’re black, they quit working and the mound dies.