Molten Aluminum Ant Hill Art [VIDEO]
When I was a kid, we had ants on our back porch all the time in the summer. My mom would have us boil a pot of water and dump it where we thought the ants were coming from, and they would be dead on contact. This is a much more extreme and PERMANENT solution to the problem.
(I think my dad and mom will have to do this on their new property in North Carolina because there are red ants everywhere!)