Ascholten
Free Ranging
I use the ortho fire ant killer. Brown Bottle with yellow lid.
The thing I have seen with pretty much all fireants and poisons.
The nest WILL scatter, and you WILL find another one probably 5 feet away from the original in a day or two.
Some nest have TENS of THOUSANDS of eggs in them. It's insane really, but with that,they WILL MOVE THEM. So look for nests popping up around the perimeter of the one you treated.
You will need to treat the original one again if it was a bigger one. Even though it may not show activity, get at those deep eggs, hiders. Treat the nests that pop up around it as soon as they do. The sooner you can start knocking them down the better to get rid of them.
From my experience, the ortho stinks a bit, sort of bone mealy, ass smell. The chickens tend to not want to have anything to do with it, so when I do spread it on smaller mounts too, and they are picking around the yard, when they come across treated mounds they leave them alone / avoid them. I also have NEVER seen a chicken go after fire ants either. I have seen them tear the hell out of a regular ant hill eat the ants and eggs. maybe I should give them an ANTacid
but they tend to leave the fire ant mounds alone. So Id think using this stuff would be safe since they don't go and mess with it.
Fireants are nasty, they will quickly overwhelm, IMO, even if you have to lock the birds up for a week to nuke the ants via scorched earth methods, you really need to before they get too infested.
Aaron
The thing I have seen with pretty much all fireants and poisons.
The nest WILL scatter, and you WILL find another one probably 5 feet away from the original in a day or two.
Some nest have TENS of THOUSANDS of eggs in them. It's insane really, but with that,they WILL MOVE THEM. So look for nests popping up around the perimeter of the one you treated.
You will need to treat the original one again if it was a bigger one. Even though it may not show activity, get at those deep eggs, hiders. Treat the nests that pop up around it as soon as they do. The sooner you can start knocking them down the better to get rid of them.
From my experience, the ortho stinks a bit, sort of bone mealy, ass smell. The chickens tend to not want to have anything to do with it, so when I do spread it on smaller mounts too, and they are picking around the yard, when they come across treated mounds they leave them alone / avoid them. I also have NEVER seen a chicken go after fire ants either. I have seen them tear the hell out of a regular ant hill eat the ants and eggs. maybe I should give them an ANTacid

Fireants are nasty, they will quickly overwhelm, IMO, even if you have to lock the birds up for a week to nuke the ants via scorched earth methods, you really need to before they get too infested.
Aaron