Ground Squirrel Burrows: Why Gas Fails and Trapping Works

Two holes 36 inches apart in an Iowa lawn likely belong to thirteen-lined ground squirrels (Ictidomys tridecemlineatus). Gas cartridges often fail because the soil is too porous or the animal isn't in the burrow.

Effective Control

• Trapping: Use rat-sized snap traps or small cage traps baited with peanut butter/oats. Place at hole entrances. Check state regulations—some require permits.
• Habitat modification: Reduce cover (tall grass, brush piles) near burrows.
• Exclusion: Not practical for large lawns.

Why Repellents Fail

Chili powder, ultrasonic devices, and commercial repellents have no proven efficacy. Ground squirrels quickly habituate. The ICWDM website (icwdm.org) explains the science behind repellent failure.

Key Point

With only two holes, trapping is fast, humane (if using quick-kill traps), and resolves the issue. Don't waste money on gimmicks.