I've had good luck with Sevin granules. Dump some in the ant hill and pour a ring around the ant so none can enter or leave without going through the stuff. It's good for laying a band around your house to keep ants out, too.I need to buy a new high power pellet gun (no idea what one to buy as many pellet guns suck now)
as the 1/2 acre yard went from 3 squirrels to 2 dozen and rabbits and a ground hog.
They are starting to destroy the eaves and ignore bait and traps
Even better the yard has been converted to a gigantic ant hill filled with the large black ants, spray the house with various “defense” products but none seem to keep the ants out. I think I’ve tried all the regular killers
I have a small amount of diazinon left from my father, that seems to be the only stuff that works, sadly probably only 1 or 2 boundary treatments left in the can if I’m forced to use it.
Even though I don’t like killing them bees and hornets seem to absolutely love my vehicles, I don’t drive as much so if one sits 2-3 days I get to deal with abnormally agressive bees and hornets and the bastards don’t seem to be affected by being smoked out so I end up killing them, even at that difficult to irradicate them even with sprays