I set out the rest of the tomatoes. The last one was slated for installation at one end of a raised bed, which has lately been a huge fire ant community. That was a bit of a trick...
I tossed the whole pile, to rile everyone up and start the planting hole... and maybe encourage them to move on. Usually I only have to destroy the nest 2 or 3 times, and they get the hint.
About half an hour later, when they got busy rebuilding, I made a bit more of a hole. I poured some TomatoTone in the hole at arm's length, and dropped the plant into the hole. After a few minutes, I started pushing soil back into the hole, little bits at a time, from the end of a long-handled shovel.
Repeat that with a 4" potted parsley.
Then I flooded the little jerks out. That was satisfying.
I heard a very interesting method of ant control after all this, from my Ozark hillbilly witch friend. It involves two separate ant colonies, and a big shovel. If you "infect" each colony with ants from the other colony, they'll all kill each other off. He said it only took a spoonful of each, but I'm imagining a big ol' shovelfull (or two) would be better. I don't know if this is any less humane than boiling water or chemicals.