Mole vs Vole: How to Tell Which One Is in Your Yard

Moles dig deep tunnels and push up mounds of soil while hunting earthworms and grubs. Voles are small plant-eating rodents that leave shallow runways in the grass and chew roots, bulbs and bark. If your lawn is pushed up in ridges and volcano-shaped hills, think mole. If your plants are vanishing or girdled and you see matted trails and small open holes, think vole. The two need completely different fixes, so it pays to identify the animal before you spend a dollar.

TL;DR

• Moles are insect eaters. They leave raised ridges and volcano-shaped mounds and damage turf by tunneling, not by eating plants.
• Voles are plant eaters. They leave 1 to 2 inch wide surface runways and golf ball-sized holes, and they gnaw roots, bulbs, stems and bark.
• Both can be in the same yard, and the damage often gets blamed on the wrong animal.
• Trapping is the proven approach for moles. Voles call for habitat changes and exclusion. Sonic gadgets and home remedies have no scientific backing.
• Minor, short-lived mole activity can sometimes be repaired by hand. Active, spreading damage is when a professional pays off.

Table of Contents

• The quick comparison
• What each animal is
• How to tell moles from voles by what you see
• Which does more damage?
• Why people mix them up
• What actually works for each
• Should you just leave them alone?
• Our view: why we only do moles
• When to call a professional
• A seasonal checklist
• FAQ
• Sources

The quick comparison

The size and body descriptions come from Clemson’s Home & Garden Information Center and an extension summary on voles from the same Clemson series, while Mississippi State University Extension offers a handy memory trick: voles eat vegetables, moles do not.

What each animal is

Moles: underground hunters

A mole is a small mammal built for digging. The National Institute of Environmental Health Sciences describes a pointed snout, eyes and ears so tiny they are hard to see, and oversized front feet. Moles are not rodents. They belong to a group of insect-eating mammals.

They are hungry animals. According to Clemson, moles can eat 60 to 100 percent of their body weight daily, and a single 5-ounce mole can consume up to 50 pounds of prey a year. That prey is earthworms, grubs and other soil life, which is why a healthy, moist lawn attracts them.

In our part of the country, three species live in the Pacific Northwest. Washington State University’s mole publication says Townsend’s mole, the largest in the United States, is found throughout western Washington and Oregon, with the Pacific mole in the coastal fog belt and parts of the northeast. The same source puts Townsend’s mole at 8 to 9 inches, noticeably bigger than the eastern moles shown in many national guides. That is one reason Northwest mounds can look so large.

Voles: small grazers

Voles are rodents. Clemson describes them as strictly plant eaters that feed on roots, bulbs, stems and bark. They look like stocky mice with short tails, small ears and a blunt face. They are active day and night, and they stay close to cover such as thick ground cover, mulch, tall grass and woodpiles.

A shortcut some editors use: moles are hunters, voles are grazers. A mole wants your grubs. A vole wants your hostas.

How to tell moles from voles by what you see

You will rarely see either animal. You read the evidence they leave.

Signs of moles

• Volcano or circular mounds. UC’s urban pest guide notes circular or volcano-shaped mounds, sometimes with a plug in the middle, and soil that tends to be clumpier than gopher soil.
• Raised ridges. These mark shallow feeding tunnels just under the turf. They feel spongy underfoot.
• Fast, spreading activity. Clemson reports that moles can tunnel about 18 feet per hour and add up to 150 feet of new tunnels in a day.
• No chewed plants. If a plant dies, it is because the roots lost contact with soil, not because they were eaten.

Signs of voles

• Surface runways. Clemson describes 1 to 2 inch wide above-ground runways through matted grass and golf ball-sized exit holes. They show up clearly when snow melts or the grass is short.
• Gnawed bark. Look at the base of young trees and shrubs for chewing near the soil line.
• Missing roots and bulbs. A plant that lifts out of the ground with no roots is a classic vole sign.
• No big dirt mounds. Voles may use tunnels, but they do not push up the piles moles do.

A simple yard test

1. Walk the lawn and note whether you see mounds of loose soil (mole) or open runways in the grass (vole).
2. Press down a section of a raised ridge with your foot. If it is pushed back up within a day or two, the tunnel is active. This is a common extension suggestion for confirming mole activity.
3. Check plants. Chewed bark and missing roots point to voles. Wilted plants over a raised tunnel point to moles.
4. Photograph what you find. A clear picture helps any local expert identify the animal fast.

If you are in Oregon, OSU Extension’s guide to moles, voles and gophers in Oregon gardens is a good local reference. It notes that many people battle these animals before they know which one they face, which leads to frustration.

Which does more damage?

It depends on what you value.

Moles damage lawns and landscape. Tunnels break up turf, expose roots to air, dull mower blades and leave an uneven surface. They do not eat your plants, and by eating grubs they remove some lawn pests. The cost is cosmetic and structural.

Voles damage living plants. They can kill young trees by girdling bark, strip perennials of roots and ruin bulb beds. A vole problem tends to hurt gardens and orchards more than lawns.

So “worse” is a matter of what is at stake. A manicured lawn, a sports field or a yard with a sprinkler system suffers most from moles. A vegetable garden, an ornamental border or young fruit trees suffer most from voles.

Why people mix them up

Both animals live underground part of the time, both are secretive, and the names sound alike. Many homeowners see a dead patch and a tunnel and assume a mole. Others see a dead shrub and a hole and assume a vole. The truth is often that you have one or the other, and sometimes both, using the same tunnels. Voles will use abandoned mole runs, so a mole problem can pull voles in behind it.

One mistake costs the most money: setting out vole bait or poison for a mole problem. Moles eat soil animals, not grain bait, so that approach does not touch them. The reverse also fails, since mole traps set in a vole runway are not placed for the right animal.

What actually works for each

Controlling moles

Extension guidance is consistent: sonic repellents, magnetic devices and home remedies have not been scientifically proven to work. Trapping is the reliable method. But it takes skill. The Oregon Department of Agriculture’s publication explains that trapping moles depends on forming a firm, triggered soil plug in the tunnel, a harder job than gopher trapping, where the tunnel is usually left open for the animal to plug itself.

Placement matters too. A county pest management guide recommends probing 8 to 12 inches down to find the tunnel before placing traps, and notes double traps need more room, so you set them farther back from the mound.

Also know the biology. Per the Oregon Department of Agriculture, moles do not hibernate, have a single litter born in March or April, and live about 3 years on average. That means activity runs year-round, and spring is when a population can grow.

Controlling voles

For voles, the fix is mostly the habitat. Remove dense ground cover and tall grass near plants, keep mulch pulled back from tree trunks and use trunk guards or hardware cloth around young trees. The Oregon publication calls for habitat modification, such as removing ground cover for voles. Where vole numbers are high, rodent trapping or other legal control may be needed. Check your state’s rules before using any toxic product.

Should you just leave them alone?

Sometimes, yes. We would rather say so than oversell. Extension guidance notes that a small amount of mole damage can be a normal, temporary part of lawn care because tunnels are often used only once, and that raking and reseeding can cost less than attempting extermination for minor activity.

That changes when:

• New mounds and ridges keep appearing week after week.
• Damage is on high-value turf, a play area, a rental property or a commercial site.
• Tunnels are undermining pavers, garden beds or irrigation.
• You have already tried repellents and traps without results.

Our view: why we only do moles

We built The Mole Busters around one animal. We do not treat ants, wasps or rats. In Oregon we also handle gophers, which behave and dig differently. That narrow focus is the whole point: when you spend your working days on moles, you learn how they move through a property, where they travel again and why a quick fix that only chases them off tends to bring them back.

The most common thing we see is a homeowner who has been told, or has assumed, that every tunnel is a mole. Sometimes it is a vole. We think the honest answer is the useful one: if what you have is vole damage, the answer is habitat and exclusion, and we would rather tell you that than set traps that will not help. When it is a mole, strategic trapping is what we do, and we stand behind the results with a guarantee and clear communication from the first visit to the last.

Our advice before you hire anyone, including us: identify the animal, watch whether activity is fresh and spreading, and ask the provider how they place traps and what happens if moles return.

— Mak

When to call a professional

If you are sure you have an active mole problem, professional trapping saves the weeks of trial and error. Our 5-Week Mole Service is built for active damage: an inspection, strategic trap placement and clear updates through the program, with the aim of solving the problem rather than hiding it for a while. If moles keep returning to your property year after year, The Mole Dominator Plan provides ongoing protection. Property managers can look at our commercial mole control, and Oregon homeowners with gopher or vole concerns can see our Oregon gopher and vole control page. You can also start at The Mole Busters and tell us what you are seeing.

A seasonal checklist

• Late winter to spring: Moles breed and raise their young, so fresh mounds can multiply. Voles become obvious as snow and leaf litter clear.
• Summer: Dry soil sends moles deeper after worms. Surface activity may drop, but tunnels remain.
• Fall: Soil moisture rises and surface feeding resumes. Mulch and ground cover shelter voles for winter, so cut back before the cold.
• Winter: Moles do not hibernate, so mild-winter regions like western Oregon and Washington see activity all year.

FAQ

How do I know if I have moles or voles?

Look at the damage. Volcano-shaped mounds and raised ridges in the lawn mean moles. Narrow runways through the grass, golf ball-sized holes and gnawed roots or bark mean voles. If you see both, you may have both animals.

Are moles or voles worse?

Neither is worse in every case. Moles wreck the surface of a lawn but do not eat plants. Voles eat roots, bulbs and bark and can kill shrubs and young trees. Which one hurts more depends on whether you care most about turf or plantings.

Should I leave moles in my yard?

For light, one-time tunneling, raking and reseeding is often enough, and extension sources say repair can be cheaper than extermination in minor cases. If new mounds keep appearing or the damage is spreading, trapping is the dependable way to stop it.

How do I get rid of voles and moles in my yard?

Treat them separately. For moles, use trapping, which takes skill in finding tunnels and setting traps. For voles, cut back ground cover, guard tree trunks and use rodent control where legal. Repellents and sonic devices have not been proven to work.

Sources

• How to Tell the Difference Between Moles and Voles, Clemson HGIC
• Controlling Moles, Oregon Department of Agriculture
• Managing Vertebrates, Integrated Pest Management
• Moles, Washington State University
• Moles vs. Voles, Mississippi State University Extension
• Moles, Voles, and Shrews, NIEHS Kids Environment Kids Health
• FAQ: Moles, Voles & Gophers, UC Pests in the Urban Landscape
• How to identify and manage moles, voles and gophers in Oregon gardens, OSU Extension

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