Quote:
Originally Posted by DropIt
1.You find the newest mound clean off the dirt and access the hole.2. You hook up your garden hose to your vehicle exhaust pipe ( I have used a plastic soda bottle the 18oz size) cut the bottom off and tape it to the pipe then attach the hose on the cap threads. 3. insert the hose in the hole and cover it tightly.4. run the vehicle for approx 30 min5. remove the hose and cover the hole.the gas will kill the gophers and it leaves a residue in the tunnels that NEW gophers hate.
Found it on Yahoo, but I've used this method personally and it works
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The flaw in this method is that you have to have every other escape hole plugged as well. I did this (even though its illegal in California) and thought it would work, but I think because I was never able to find any other holes, the carbon monoxide was escaping before it was potent enough to kill the gopher. It did keep the gopher away from my yard for a couple of days thought, so there is probably something to the residue theory.