I don't know if there's a community specifically for advice on killing insects but as this is relevant to both my lawn and flower beds, I'll take my chances here. We've got fire ants. Last year they stayed in the front yard, way out by the road, so we gave a few half-hearted attempts to get rid of them but gave up since they weren't bothering us way out there. But this spring, they've invaded the driveway, the sidewalk, my flower beds and the back yard. Oh, heck no! I'm all for doing something that's as environmentally and people/animal friendly as I can, but this is war. I know instant grits is a big fat lie - it does not cause them to explode, and even if it did, the queen would have to be destroyed to stop the colony and adult ants don't eat solid food. I know boiling water could be effective, but tends to work less than half the time and we are way past the stage of just pussy footing around. We tried 100% lye and while it killed those on the surface right away, there were plenty more around the mounds just half an hour later so I know we didn't kill them all and probably not the queens. So what do I do? Give it to me straight. If it's going to take something that is dangerous to pet, person, and environment, just tell me. I'm ready to accept we must step up to chemical warfare if that's the case. These things have to go. As it is, we can't use our yard at ALL, and pretty soon we won't be able to get from the house to the driveway without being bitten to all heck or wearing haz-mat suits.