Pocket gophers are among the most damaging lawn and garden pests in the Bay Area. Their underground tunnel systems can destroy root systems, break irrigation lines, and undermine the structural stability of landscaped areas. And because they live almost entirely underground, many homeowners don’t realize the extent of the problem until significant damage has occurred.
Understanding Gopher Tunnels
A single gopher can create an extensive tunnel network covering hundreds of square feet. The main tunnel runs 6–12 inches below the surface and serves as the primary travel route. Lateral tunnels extend from the main tunnel to foraging areas and are typically plugged with soil after use.
The telltale sign of gopher activity is the characteristic crescent- or fan-shaped dirt mound with a plugged opening on one side. This differs from mole mounds, which are symmetrical and volcano-shaped with no visible opening.
What Gophers Damage
- Plant roots, bulbs, and tubers (can destroy entire plantings from below)
- Drip irrigation lines and sprinkler systems
- Underground utility lines
- Tree roots and young trees
- Retaining wall foundations and soil stability
Effective Gopher Control
The most reliable method for controlling pocket gophers is trapping — specifically, placing traps directly inside active tunnels. This requires locating and excavating tunnel entrances, which is best done by a professional familiar with gopher behavior and tunnel systems.
Bait and fumigation are also options in certain situations, but each has limitations and must be applied carefully in accordance with California regulations.
ATCO’s gopher control program includes identification, active tunnel location, strategic trapping, and follow-up to confirm control. If gophers are damaging your Bay Area property, contact us for an assessment.