You know you have iris fever when you're cutting down trees and removing lawn.
Mary Ann the gopher/mole/ground squirrel gas bombs I use are called "Giant Destroyer".
https://www.amazon.com/dp/B000BQLWCS/
I've tried the ones called "Amdro", but half of the box were duds. I've never had a dud with the Giant Destroyers. I buy the Destroyers at Home Depot. My local Ace Hardware didn't carry them, but they carry Amdro's...so that's why I tried those once and only once. I wish I read the reviews on Amazon before I tried Amdro's.
It's raining right now!