Finish Off Fire Ants! - Part 1

I can deal with a lot of things- floods, frosts, Japanese beetles, but one thing I can't stand is fire ants. Living in the north for a good portion of my life, I was close to unaware of their existence until I moved to the south. Then, everywhere I looked in my yard I saw the same thing; enormous mounds of orange clay filled with irritating stinging ants.