Trudy as horrible as this is going to seen to some people...they only way I have fund os trapping.
Ltcollins, she is a member here lives down south on the coast and has them. She uses some kind of motion thing that I believe makes a vibration or sound underground.
We tried it and didn't work.
Maybe a city lot it would not not acreage, at least here.
Good luck, I really despise gophers.
jolana

Thanks Jolana, I have tried Windmills designed to vibrate in the ground. They gave out before the darn Gophers did. They are getting worse . Used to have a Peanut field next to me, but not in the last 3 years. I guess they eat anything just to survive now.
I just don't plant anything outside anymore just Cactus.. Got into Orchids I can keep them inside.
Trudy

The Castor Plant is supposed to repell gophers, among other rodents. However, all of the plant is poisonous.

I have heard of people spraying castor oil over their lawn to keep them away, but I do not know the correct concentration.

I do know that no gophers have ever dug even close to where I grow castor bean plants, and armadillos don't dig near them either, but that may just be a coincidence.

Kt

I guess dynamite is out, huh?

I used some traps years ago to catch gophers for a mammology class in college. You dig down to their horizontal hole and place them in the tunnel. When they try to re-fill the opening (they can feel the pressure change), they get nailed. Not for the squeamish.

Castor Plants, castor oil, used catlitter, gum, etc, etc
Just traps, if someone would invent a robotic snake that would be cool, lol
Sometimes even if the trap is fully in the tunnel they can throw dirt over it and not get caught.
Dig the area out to see the hole, place the set trap in the tunnel cover the area with black plactic and a small piece of plywood over that. You will catch them.
Since I started using the plastic and wood, I never miss
Good luck
Oh, for special plants you can buy wire mesh to go aroound the hole and on the bottom. The roots are still able to grow but they can't eat enough to kill it
There are plants that gophers here haven't touched. They don't seem to go for anything that smells, herbs, wormwood, salvia's, etc
jolana

Well I have a dog that digs them up and kills them..I could loan her to you...LOL jokin' she drags them out of their hole...I was quite shocked the first time I saw her do it.

Blubelle, what kind of dog do you have? Quite a few people have told us to get a rat terrier, jack russel, dachshund, lol
DH said NO!!!
No more dogs, lol
So I guess, I'll just keep the traps handy
jolana

Thanks to all, My dog will not go and dig.Guess I feed Her to well.
I will try to find me a small Rat Terrier.Or maybe I can borrow bluebelle's dog.
Trudy