I live in Texas, and we get our fair share of varmints, including 20-pound gophers. The farmers in these parts like to hire the locals to come out and shoot gophers, rabbits, burrowing owls, moles, feral hogs, and just about anything else that is being a nuisance. While you may kill 100 gophers over the course of a day’s shooting, on several acres there may be a thousand more, multiplying day-by-day.
While we do enjoy picking off varmints, it does no good for controlling them. We have been contracted to try whatever means possible to get rid of the nuisance population. It seems that feral hogs and large gophers are the worst in this area. Poisoning killed a few hogs, but these creatures are very smart and learn that if one of their kind dies in a particular area, the whole lot of them moves on to other property.
The best short-term solution we came across was flooding. We would wait until after a heavy rain when there would be several feet of water standing in the bar ditch and use a commercial sump pump with a high output and a long, wide hose to fill the burrows with water. With a good pump, this might take a couple of hours. Just keep pumping the water until there’s no more.
With the water filling the burrows and no gophers coming out, it’s obvious they have high-and-dry pockets in case of flooding. This is where a pneumatic soil packer comes in handy. A pneumatic soil packer is similar to a jack hammer except not so violent and is much heavier with a large steel foot that jumps up and down, compacting the soil and collapsing the gopher’s air pockets at the same time. You use this device around areas where you find covered-up holes and tunneling near the surface. As the air pockets collapse, the gophers will retreat to the nearest exit, which should be covered by a couple of cinder blocks. Unable to escape the water, they will drown, pups and all.
We have cleared many fields of big gophers using this technique. Another option, if the field is fallow, go rent the biggest steamroller you can find and roll over the field. This too will collapse the tunnels and air pockets, crushing them in the process. You can rent steamrollers at heavy-equipment rental stores (at least we can here). For any gophers that escape, have a few buddies with deer rifles and/or assault rifles to finish them off.
Recently, after hearing about a “groundhog vacuum” someone designed, we took several vacuum motors from an old abandoned car wash and built an enclosure on the back of a pickup. We mounted 3 vacuum motors to the top of the enclosure and sealed it up tight. We then attached a very large (12" diameter) heavy-duty hose to the pickup, started the motors, put the end of the hose down a gopher tunnel and waited.
After 10-15 minutes, we began hearing the thuds of gophers hitting the inside of the enclosure. It seems when they get caught in the vacuum, they ball up, hoping the menace will pass, but instead end up being sucked into the enclosure where there is no escape. Though these varmints are skiddish and wary, they are also curious, and when they see one of their comrades go flying by, they come out to look and get caught up in the suction themselves. DOH!
The first time we tried this, we captured 78 gophers in the enclosure, all alive, all scared to death. They ranged in size from 1/2-pound pups to a couple of 18-pound monsters (and a couple of tarantulas to boot). What you do with them at this point is up to you. We donned leather chaps, gloves, facemasks, and aprons and just manhandled them into a large dumpster where we incinerated them. Sounds cruel, but if you have a serious gopher problem, nothing is too cruel. Gophers cause millions of dollars worth of crop damage and cause horses and cattle to break their legs with their burrows.
A friend of mine, who thinks money is fun to spend, bought 2 loads of concrete (you know, 2 cement trucks full) and filled in the burrows as best he could with it. He had some BIG gophers - 22-25-pounders - and to this day has no gopher problems. He figured they suffocated in their air pockets, thinking that it was rain and would soon be absorbed. DUH! I suppose it all boils down to how much money you are willing to spend to get rid of the bastards.
Here in Texas, people go to great lengths and expense to do things. I was paid $5000 for the vacuum job, and about $1500 for drowning them on 2 different farms. And we still go out and pick them off with deer rifles on the weekends when there’s not anything else better to do. All this may sound funny to you, but like I said, here in Texas, people go to great lengths and expense to do things. Traditional methods of extermination weren’t working, so we decided to be creative with our methods and were successful. I hope this information can be helpful to you…
spodie

