Chipmunks Undermining Sidewalk: Trap, Don't Gas

3 years of chipmunks tunneling under sidewalk, 2-ft rock pile growing. Exhaust fumes from car failed. Wants effective removal.

Why Gas Failed

Tunnel systems are extensive; gas dissipates. Chipmunks escape. Dangerous (CO risk).

Effective: Trapping (per ICWDM.org)

• Live traps (cage/box) or lethal traps (conibear, rat snap traps).
• Wear gloves. Bait: peanut butter, seeds, fruit.
• Place at burrow entrances, along runways.
• Check state laws on relocation vs. euthanasia.

Prevent Re-infestation

• Remove bird feeders or add catch trays/baffles.
• Fill burrows with gravel + soil after removal.
• Hardware cloth barrier along sidewalk edge.

Visit icwdm.org for detailed chipmunk control guide.