Do coffee grounds, mothballs, or hose flooding get rid of moles?

No. Grounds and mothballs don’t evict moles and can be unsafe or illegal to use in soil. Flooding just pushes moles deeper or to new runs. The fastest, proven control is a properly set kill trap in an active tunnel.

Are moles eating my grass or roots?

Moles aren’t plant eaters; they tunnel for earthworms and insects. Turf dies where roots are severed or soil is heaved and dries out. If you see chewed plants or small holes near beds, think voles instead and adjust tactics.

When are moles most active and how long will this take?

They’re most active in cool, moist soil—spring and fall. With a good set on a main run, many homeowners catch a mole within 24–72 hours. Keep traps moving to fresh, active runs until activity stops for a week.

Is poison bait safe to use for moles?

Use only EPA-registered worm-form mole baits (e.g., Talpirid) and follow the label: gloves, place inside active runs, and secure from pets and children. If you have dogs that dig, stick to traps. When in doubt, hire a licensed pro.

Will killing grubs remove moles from my yard?

No. Moles primarily eat earthworms; grubs are a minor snack. Grub control can protect turf, but it rarely eliminates moles. Focus on trapping active tunnels. If you have confirmed grub damage, treat it separately for lawn health.

How to Get Rid of Moles in Your Yard: Traps That Work

The no-drama way to evict moles

Moles aren’t eating your grass; they’re tunneling for worms and bugs and trashing your lawn in the process. The fix isn’t garlic, gum, or hose flooding. It’s finding the right tunnel and putting a proven trap in it. We’ve set these traps in our own yards and on client lawns—caught our last eastern mole in 48 hours.

If you want a trap-only deep dive, see our guide: How to Get Rid of Moles in Your Yard: Traps That Work.

First: Make sure it’s really moles

Moles push up raised, squishy runs and molehills (soil volcanoes). Voles make small, open holes and chew plants; gophers make crescent mounds with a plugged hole.

Raised, spongy runs and soil mounds = moles
Small clean holes near beds and chewed plants = voles (see What Is Eating My Hostas?)
Big fan- or crescent-shaped mounds, plugged hole = gophers
Pinholes with scattered soil at night may be other critters (see Tiny Holes in Lawn at Night)

Find an active tunnel (stomp test)

You don’t need to trap everywhere—just the “highway” (a main run):

Stomp 2–3 sections of tunnel flat.
Check in 12–24 hours.
The section that pops back up is active. That’s your set.

Pro tip: Main runs are straighter and connect molehills or follow edges (fence, path, garden border).

Traps that actually work (and how to set them)

Skip gimmicks. Use one of these and set it correctly:

Victor Out O’ Sight Scissor Trap ($15–20): Great for deeper main runs. Dig a neat hole over the tunnel, set the jaws straddling the run, and cover to block light.
Tomcat Mole Trap (plunger-style, $19–25): Fast to set on shallow runs. Compress soil in the run, align trigger over the tunnel, and arm.
Wire Tek EasySet Mole Trap ($39–49): Easy, durable “squeeze” style that straddles the run; good for homeowners.

How we set them:

Locate a straight, active run.
Slice a clean plug of turf (save it) and use a trowel to open just enough for the trap.
Compress the tunnel floor slightly so the trigger hair just touches it.
Set trap perpendicular to tunnel; ensure jaws/plates straddle the run.
Cover with the turf plug or a board to block light and wind.
Check daily. If no action in 48 hours, move to another active run.

Two traps in opposite directions per site doubles your odds.

Baits and repellents: When they’re useful

Talpirid Mole Bait (bromethalin, 20 worm baits, $35–45) or Tomcat Mole Killer ($15–20): Use only in active runs, gloved, and secured per label. Keep pets and kids out. Effective but we still rank traps first for speed and certainty.
Castor oil repellents (Bonide MoleMax 10 lb, $19–24; I Must Garden Mole & Vole Repellent 10 lb, $27–32): Can push moles off small areas when watered in, especially as a follow-up after trapping. Reapply every 4–6 weeks in season. Don’t expect miracles on heavy clay or big properties.

The numbers (why grub killers don’t fix moles)

University of California IPM notes moles primarily eat earthworms and other soil invertebrates; grubs are a small part of the diet. They can move through existing tunnels at ~80 ft/min and dig new surface tunnels up to ~18 ft/hr—so damage adds up fast (https://ipm.ucanr.edu/PMG/PESTNOTES/pn74115.html).

Translation: Killing grubs won’t starve moles; they’ll keep eating worms. If you truly have a grub problem, fix it for turf health (see White Grubs in Soil Identification and How to Get Rid of Grubs in Lawn Naturally), but don’t expect moles to vanish.

What not to waste money on

Ultrasonic stakes: We’ve tested them; moles ignore or move a few feet over.
Flooding tunnels: Moles can block water or retreat to deep runs.
Mothballs, gum, coffee grounds, bleach: Illegal, ineffective, or both.
Gas cartridges/smoke bombs: Inconsistent unless every exit is sealed.

Aftercare: Fix the lawn and prevent re-invites

Stomp remaining runs and rake soil flat.
Topdress low spots with compost or screened soil; overseed thin areas.
Water normally; don’t overwater (worms love moisture). Improve drainage in soggy zones.
Keep mowing and edge beds—moles love running edges, so it’s where you’ll spot fresh activity fastest.

We like to trap hard for 1–2 weeks, then apply a castor-oil repellent border around beds and play areas as a gentle nudge.

Quick plan (print this)

Confirm moles, not voles/gophers.
Stomp test 2–3 runs; pick the active one.
Set 2 traps facing opposite directions.
Check daily; move if no catch in 48 hours.
Use bait only where labeled and secured.
Flatten runs; repair lawn; optional repellent border.

If you’re seeing chewed plants or tiny holes, revisit ID: What Is Eating My Hostas? and Tiny Holes in Lawn at Night.