If your lawn is sprouting mounds of dirt, your garden keeps disappearing, or the ground feels like it’s collapsing underfoot, you’re probably dealing with one of Ventura County’s two most destructive burrowing pests: gophers or ground squirrels. They cause similar damage but behave differently, and telling them apart helps you understand what you’re up against.
How to tell them apart
Gophers live almost entirely underground. You’ll rarely see the animal itself — what you see is the damage: crescent- or horseshoe-shaped mounds of fresh soil with a plugged hole off to one side. Gophers feed on roots and pull plants down into their tunnels from below.
Ground squirrels are out in the open. They look like a cross between a tree squirrel and a chipmunk, dig open burrow entrances (no plug), and you’ll often see them sitting up near their holes or scurrying across the yard. They eat plants from above and burrow near foundations, slopes, and walkways.
The damage they do
Neither is just a cosmetic problem:
- Lawns and gardens get torn up from above and below — roots eaten, plants pulled under, soil mounded everywhere.
- Irrigation and sprinkler lines get chewed through, leading to leaks and dead patches.
- Foundations, walkways, and slopes get undermined by burrow systems, which can become a real structural and safety issue.
- Ground squirrels can also carry disease and attract predators like rattlesnakes into your yard.
Why DIY usually doesn’t work
Most people start with store-bought traps, gas cartridges, or repellents from the hardware store. The problem is scale. A gopher or ground squirrel burrow system is far bigger than the few visible holes suggest — it can run dozens of feet with multiple chambers and exits.
DIY methods tend to clear one tunnel or catch one animal while the rest of the colony keeps expanding. Within a few weeks, the damage is back. And for properties next to open fields, vacant lots, or agricultural land, new animals constantly migrate in to replace any you remove.
What actually works
Effective abatement means treating the whole system, not chasing individual mounds:
- Map the active burrows. Not every hole is in use. We identify the active runs so the treatment actually reaches the animals.
- Treat at the source. We clear the population through the burrow system itself rather than relying on surface deterrents.
- Set up ongoing protection where needed. For properties under constant pressure from neighboring open land, a recurring abatement plan clears new colonies before they can establish and do damage.
When to call
If you’ve got fresh mounds appearing faster than you can fill them, or you’re seeing squirrels around your foundation, it’s worth getting a professional inspection before the damage spreads to irrigation or structures.
Gopher and ground squirrel abatement is one of the things Global Rodent & Pest Services is known for. We handle residential yards, commercial landscapes, ranches, and industrial sites across Ventura County. Call (805) 574-9128 for a free inspection — we’ll walk the property, find the active burrows, and put together a plan.