I've never heard of European Fire Ants before today. We have the good ol' South American fire ants here in Florida. They have taken over most of Florida and are quite a problem on pasture lands. They will tear you up before you even know you've been bit. It's like they wait for a signal and all bite at once. Many people get sent to the hospital from bites. Once a mound gets established in your lawn it's tough to get rid of them completely unless you're diligent with the fight.
I use both Amdro granuals and Orthene powder brands directly on the mounds. I also use a combo Ortho Max, Spectracide Triazide and Bayer Advanced spread all of the whole yard. When I fertilize I use Scotts Bonus S with Fire Ant killer.
Needless to say ain't many bugs gonna live on my lawn.