How to Get Rid of Moles in Your Yard (DIY Trapping Guide)

Moles are small, insectivorous mammals — not rodents — that spend nearly their entire lives underground. The eastern mole and the star-nosed mole are the most common species in the eastern US, while the Townsend's mole and broad-footed mole are prevalent in the west.

Key facts about moles that affect your control strategy:

• They're solitary. Except during mating season (late winter/early spring), moles are territorial loners. If you're seeing tunnels across your whole yard, it's likely just 1-3 moles, not a colony.
• They eat earthworms first, grubs second. Earthworms make up 70-80% of a mole's diet. Grubs are secondary. This is why grub control alone rarely solves a mole problem — they'll still tunnel for earthworms.
• They tunnel at two depths. Shallow surface runs (the raised ridges you see) are feeding tunnels, often used only once. Deeper main tunnels (6-12 inches deep) are permanent travel routes used daily. You need to set traps on the active deep runs, not the surface feeding tunnels.
• They're active year-round. Moles don't hibernate. In summer they tunnel deeper; in spring and fall they're closest to the surface and most visible (and most trappable).

Let's address the elephant in the room: most "mole control" products don't work. Vibrating stakes, ultrasonic devices, pinwheels, chewing gum, broken glass, moth balls, human hair — none of these have been shown to work in any controlled study. Trapping is the only method consistently recommended by university extension services and wildlife management professionals.

• Scissor-jaw trap (recommended for beginners) — Also called the "Out O' Sight" trap. This is the easiest mole trap to set and the most forgiving if your placement is slightly off. It straddles the tunnel and catches moles traveling in either direction. Brands: Victor Out O' Sight, Nash Choker Loop.
• Harpoon trap (alternative) — Also called a plunger trap or spear trap. Sits on top of the tunnel. When the mole pushes the soil up to re-open the tunnel, it triggers spear-like tines. Effective but requires more precise placement. Brand: Victor Harpoon.
• Small trowel or garden spade — For excavating tunnels to set traps.
• Castor oil-based granular repellent (supplemental) — Products like MoleMax or Sweeney's Mole & Gopher Repellent. These are the only repellent type with some research support — they won't eliminate moles but may push them out of treated areas.
• Garden hose with water — For watering in repellent granules.
• Lawn roller or feet — For flattening surface tunnels during the "stomp test" to find active runs.
• Marker flags or stakes — For marking active tunnels.

Step 1: Find the Active Runs (The Stomp Test)

This is the most critical step. Setting a trap on an inactive tunnel is the #1 reason people fail at mole trapping.

Walk across your yard and flatten all the raised surface tunnels by stepping on them firmly. Mark each one with a small flag or stake. Come back in 24-48 hours and check which tunnels have been pushed back up. Those are your active runs.

Focus especially on:

• Straight runs along edges — Tunnels that run along sidewalks, driveways, fence lines, and house foundations are usually main travel routes (deep runs), not random feeding tunnels. These are your highest-value trap locations.
• Tunnels connecting two mounds — Straight-line tunnels between raised mounds are often deep, permanent travel routes.
• Hub areas — Spots where multiple tunnels converge. These are high-traffic areas.

Avoid random, meandering surface tunnels in the middle of the lawn — these are typically one-time feeding runs that the mole may never use again.

Step 2: Set Traps on Active Runs

For scissor-jaw traps:

1. Find an active straight run (confirmed by the stomp test).
2. Use a trowel to dig out a section of the tunnel, removing enough soil to fit the trap jaws.
3. Compress the trap's jaws together and place them straddling the tunnel, with the jaws positioned inside the tunnel opening on each side.
4. Set the trigger mechanism per the manufacturer's instructions.
5. Backfill soil lightly around the trap to block out light (moles avoid light), but don't pack it so tight that the jaws can't close.
6. Do NOT disturb the tunnel beyond the trap location — keep your scent and disturbance to a minimum.

For harpoon traps:

1. Find an active run.
2. Press down the raised tunnel at the trap location to compress the soil slightly. You want the mole to push it back up (which triggers the trap).
3. Push the trap's support legs into the soil so the trap sits directly over the compressed section of tunnel.
4. Set the trigger. The trigger plate should be resting on the compressed soil surface.
5. When the mole travels through and pushes the soil back up, it lifts the trigger plate and fires the harpoon spears down into the tunnel.

Step 3: Check Traps Daily

Check every trap once per day, ideally in the morning. If a trap hasn't triggered after 3 days, the run is likely no longer active — move the trap to a different active run. Most successful mole catches happen within the first 24-48 hours of trap placement.

Step 4: Relocate Traps as Needed

Mole trapping is a patience game. Set 3-5 traps across different active runs for the best results. Move unproductive traps every 2-3 days. Once you catch a mole, leave the traps set for another week — there may be a second or third mole. When you go a full week with no new tunnel activity and no catches, you've likely cleared the moles from your yard.

Step 5: Apply Castor Oil Repellent (Supplemental)

Castor oil-based granular repellents are the only mole repellent type with some scientific support. They work by making the soil and the moles' food taste and smell unpleasant. They won't eliminate a mole problem alone, but they can help push moles out of specific areas (like a garden bed) while you trap elsewhere.

• Spread granules evenly over the affected area per package directions.
• Water them in thoroughly with a garden hose. The castor oil needs to soak into the soil to be effective.
• Reapply every 30 days or after heavy rain.

Use repellent as a complement to trapping, not a replacement.

Step 6: Grub Control (Supplemental, Not Primary)

Eliminating grubs will remove one food source, but since earthworms (which you don't want to eliminate — they're essential for soil health) make up the majority of a mole's diet, grub control alone rarely solves a mole problem. However, if you also have lawn damage from grubs (brown patches that peel up), treating grubs with milky spore or beneficial nematodes addresses both problems. See our beetle guide for grub treatment details.

• Maintain traps through spring and fall — These are the peak seasons for mole activity near the surface. Setting traps proactively in March-April and September-October catches moles before they cause visible damage.
• Watch for new tunnel activity — After clearing moles, monitor your yard weekly. New moles can move in from adjacent properties, especially in spring during breeding season.
• Use castor oil granules as a perimeter treatment — Applying castor oil repellent around your yard's border may discourage new moles from moving in from neighboring properties. Reapply monthly.
• Don't over-water your lawn — Consistently wet soil concentrates earthworms near the surface, which attracts moles. Water deeply but infrequently rather than keeping the surface constantly moist.
• Accept that moles may return — Mole control is ongoing, not one-and-done. Your yard has earthworms, which means it's attractive to moles. New moles from surrounding areas will eventually move into vacated tunnels. The goal is management, not permanent elimination.

• Using vibrating stakes or ultrasonic devices — These are the most-purchased and least-effective mole products on the market. Multiple university studies have found zero evidence that sonic or vibrating devices repel moles. Moles tunnel right past them. Save your money.
• Putting chewing gum, broken glass, or moth balls in tunnels — These are persistent folk remedies that don't work. Moles don't eat gum (they eat live invertebrates). Broken glass doesn't deter tunneling. Moth balls are toxic to pets and children and have no effect on moles.
• Trapping on inactive or feeding-only tunnels — The #1 reason people fail at mole trapping. If you don't do the stomp test to identify active runs, you're guessing — and most surface tunnels are one-time feeding runs the mole won't revisit. Always confirm activity before placing a trap.
• Using only one trap — One trap covers one tunnel. With 3-5 traps set on different active runs, you dramatically increase your odds. Mole trapping is a numbers game.
• Flooding tunnels with water — Some people try to flood moles out with a garden hose. This doesn't work — moles can dig faster than water fills tunnels, and they simply move to a dry section. You'll waste water and make your lawn muddy.
• Eliminating grubs and expecting moles to leave — Grubs are only 20-30% of a mole's diet. Earthworms are the primary food source. You can have zero grubs and still have an active mole problem.