Gopher Damage to Lawns & Turf

Quick Answer

Gophers ruin turf fast — mounds smother grass, subsurface tunnels create soft spots and ankle-breaking voids, and they chew roots from below leaving dead patches with no obvious cause. I’ve reseeded over active gophers before and watched a whole repair job disappear in three days. The fix is two-part, in strict order: eliminate the gopher first, then repair the turf.

The Gear

• Soil probe
• Flat-bladed shovel
• Topsoil or lawn mix for fill
• Grass seed or sod patches
• Roller or tamper

The Process

1. Stop the infestation first — reseeding over an active gopher is a waste of money. Set traps or bait before any lawn repair.
2. Once activity stops (no new mounds for 5–7 days), flatten existing mounds by raking the soil outward across the turf.
3. Probe collapsed tunnel areas and fill voids with topsoil, tamping in layers to prevent future sinking.
4. Overseed dead patches or lay sod, then water consistently for 2–3 weeks.
5. Monitor for new mounds — a single missed gopher will undo the repair in days.

Bagger Pro-Tip

Don’t haul the mound soil away — it came out of your yard and it’s perfectly good fill. I used to bag it and drag it to the trash. Wasted effort. Just spread it thin over the surrounding grass with a rake. It settles in and the grass grows right through it within a few weeks.

Safety Warning

Collapsed tunnel voids can be deeper than they look. Probe before you walk across repaired areas, especially if kids or elderly people use the lawn.

Fix It

Get the gopher out first — lawn repair is pointless while it’s still active.

• Victor Trap Tunnel Intercept — fastest setup for main run captures
• Cinch Trap Mainline Set — reliable alternative, great for beginners
• Poison Bait Stations — good for multi-mound pressure across a large lawn