To get rid of gophers in San Diego, probe near a fresh crescent-shaped mound to find the main tunnel, then set two pincer or box traps in pairs facing each other inside it. UC IPM says to use both traps and underground fencing to manage gopher problems. UC IPM also reports that no repellents currently sold successfully protect plants from gophers, and that frightening devices such as vibrating stakes, ultrasonic devices, and wind-powered pinwheels haven’t been effective in research trials.
UC IPM reports that five species of pocket gophers are found in California, with Botta’s pocket gopher, T. bottae, being most widespread. UC IPM says gophers usually live alone within their burrow system, except when females are caring for their young or during breeding season, and that they typically remain underground in their burrow system. If the mounds in your yard don’t match what’s described below, or the damage looks more like rat or mouse activity, our guide on telling which rodent you actually have can help narrow it down first. This guide covers how to get rid of gophers in San Diego using the method technicians actually rely on: trapping the tunnel itself.
How to tell if you have gophers (not moles or voles)
UC IPM says mounds of fresh soil are the best sign of a gopher’s presence, that mounds are typically crescent- or horse-shoe-shaped when viewed from above, and that the hole off to one side of the mound is usually plugged. Mole mounds get mistaken for gopher mounds. UC IPM describes mole mounds as more circular, with a plug in the middle that might not be distinct, and volcano-shaped in profile. UC IPM adds that unlike gophers, moles commonly make feeding burrows just beneath the surface, leaving a raised ridge to mark their path. UC IPM describes pocket gophers as small burrowing rodents that feed on roots of many types of plants.
Why gophers thrive in San Diego yards
Irrigation is the part of a San Diego yard that matters most here. UC IPM notes that in nonirrigated areas, mound building is most pronounced during winter or spring when the soil is moist and easy to dig, but that in irrigated areas such as lawns, flower beds, and gardens, digging conditions are usually optimal year-round and mounds can appear at any time. UC IPM also says gophers don’t hibernate and are active year-round, even though you might not see any fresh mounding, and that they can be active at all hours of the day and night. Yards in Poway and the rest of the county sit in that irrigated category most of the year. Our San Diego pest season calendar breaks down when other pests show up, if you want the full-year picture.
How to get rid of gophers in San Diego, step by step
Work through these in order. Skipping the inspection step and jumping straight to traps usually means guessing at where to set them.
| Step | What to do | San Diego note |
|---|---|---|
| 1. Locate | Use a gopher probe to find the main burrow, since traps must go underground inside it | UC IPM: probes need to identify tunnel systems through 4 to 12 inches of hard soil |
| 2. Set | Set traps in tunnels in pairs facing each other, in active burrows as indicated by fresh mounds | UC IPM: gopher traps don’t require food baits |
| 3. Check | Check traps often and reset as necessary | UC IPM: a single gopher can create several mounds a day |
| 4. Keep going | Keep trapping until no new mounds are formed | UC IPM: early detection is critical to prevent damage |
| 5. Exclude | Add underground fencing where you’re replanting | UC IPM: use both traps and underground fencing to manage gopher problems |
UC IPM says successful trapping, baiting, and burrow fumigation require accurate location of the gopher’s main burrow, so the locate step is what makes every step after it worth doing.
Trapping is the reliable method
UC IPM names pincer traps and box traps as the two common types, and says gopher traps are placed underground inside the gopher burrow, so you must poke around to locate the burrow. UC IPM puts feeding burrows usually 6 to 12 inches below ground, with burrows about 2 1/2 to 3 1/2 inches in diameter. Set the traps in pairs facing each other, in active burrows as indicated by fresh mounds, and keep trapping until no new mounds are formed.
What about bait, gas, and repellents
UC IPM says toxic baits are available but can pose threats to wildlife, pets, and children, especially in backyard situations. It also warns that multiple-feed anticoagulants, chlorophacinone and diphacinone, are no longer legal for residential use in California, and that old products with those active ingredients should go to a household hazardous waste facility. On the methods people find online, UC IPM is blunt: no repellents have proven effective at protecting gardens or other plantings from pocket gophers, plants such as gopher purge, castor bean, and garlic haven’t been shown to repel gophers from an area, frightening devices such as vibrating stakes, ultrasonic devices, and wind-powered pinwheels haven’t been effective in research trials, and placing chewing gum or laxatives in burrows is another ineffective control method. UC IPM does note that you can sometimes use flooding to force gophers from their burrows.
Protect plants and keep gophers out
UC IPM says that to protect existing plantings you bury hardware cloth or 1/2- to 3/4-inch mesh wire at least 2 feet deep, with an additional 6 inches of mesh or wire bent at a 90-degree angle away from the planting, and extend the fencing at least 1 foot aboveground. For individual plants, UC IPM says to install wire baskets at the same time you are putting the plants into the ground. To protect underground flexible sprinkler lines or utility cables, UC IPM suggests placing 6 to 8 inches of coarse gravel around them. Speed matters: UC IPM says a single gopher can ruin a garden in a short time, that gopher gnawing can damage irrigation lines and sprinkler systems, and that early detection is critical to prevent damage. Gophers aren’t the only rodent problem San Diego yards deal with, and if mice have also found their way inside the house, our guide on how to get rid of mice covers the sealing and trapping approach for that separately.
When to call a pro
A pro earns the fee on the parts a single mound doesn’t cover: probing and trapping an entire tunnel system across a yard, treating multiple active burrows at once, and handling the constant reinvasion that comes from living next to open space. A full inspection maps every mound, tunnel direction, and likely lateral as one connected system instead of a handful of individual guesses. If you want a sense of what that costs before you call, our breakdown of rodent control cost in San Diego covers trapping versus ongoing service pricing. Our rodent control and general pest control pages cover how the matching works across San Diego County. If you go with any company, you can verify a licensed pest control operator through the California Structural Pest Control Board at pestboard.ca.gov.
Frequently asked questions
How do I get rid of gophers in my San Diego yard?
Probe near a fresh, plugged crescent mound to find the main burrow, then set pincer or box traps in pairs facing each other inside it. UC IPM says to place traps in active burrows as indicated by fresh mounds, check traps often, reset as necessary, and keep trapping until no new mounds are formed. UC IPM also says no repellents currently sold successfully protect plants from gophers.
What’s the difference between a gopher and a mole?
UC IPM says gopher mounds are typically crescent- or horse-shoe-shaped with the hole off to one side, usually plugged. Mole mounds are more circular, have a plug in the middle that might not be distinct, and are volcano-shaped in profile. UC IPM adds that unlike gophers, moles commonly make feeding burrows just beneath the surface, leaving a raised ridge to mark their path.
Do gophers go away on their own?
UC IPM says gophers don’t hibernate and are active year-round, even though you might not see any fresh mounding, and that a single gopher can ruin a garden in a short time. Its management advice is to use both traps and underground fencing, and that early detection is critical to prevent damage.
Is trapping or poison better for gophers?
UC IPM says toxic baits are available but can pose threats to wildlife, pets, and children, especially in backyard situations. It also notes that multiple-feed anticoagulants, chlorophacinone and diphacinone, are no longer legal for residential use in California. Its headline advice is to use both traps and underground fencing to manage gopher problems.
How long does it take to get rid of gophers?
UC IPM doesn’t put a clock on it. The finish line it gives is a condition, not a date: keep trapping until no new mounds are formed, and check traps often and reset as necessary. UC IPM also notes that if new mounds appear more than 2 days after strychnine or zinc phosphide baiting, you’ll need to rebait or try trapping.
What damage do gophers cause?
UC IPM says pocket gophers feed on roots of many types of plants, that a single gopher can ruin a garden in a short time, and that gopher gnawing can damage irrigation lines and sprinkler systems. In lawns, UC IPM notes their mounds are unsightly and interfere with activities such as playing and mowing.
UC IPM says early detection is critical to prevent damage. Call (858) 400-6561 to get matched with a licensed local pro.