Mole Damage Management

A Wildlife Biologist's Approach

Southern Wildlife Resources handles mole damage the way a wildlife biologist handles any wildlife conflict. We confirm which animal is responsible, determine what it is doing on your property and why, and then work the problem with the full set of tools rather than the one that is easiest to sell.

The Animal You Actually Have

The eastern mole, Scalopus aquaticus, is the species in Kentucky lawns. It is an insectivore, related to shrews, not a rodent. A hairless pointed snout, no external ears, eyes concealed in the fur, and enormous broad forefeet with palms wider than they are long. An adult male averages about seven inches and four ounces.

Correct identification is the single most valuable step in the entire process, because several Kentucky animals produce damage that gets charged to the mole.

• Moles leave volcano-shaped hills of cloddy soil pushed up from deep runs, and raised surface ridges where they have tunneled just under the sod. There is normally no open hole at the surface, and the number of hills tells you nothing about the number of animals.
• Voles leave runways at ground level rather than raised ridges: narrow paths worn through the grass and thatch, often with clipped stems and open burrow holes. Voles eat bulbs, roots, tubers, and bark. Woodland voles also tunnel just below the surface, which is the closest any of these comes to genuinely resembling mole work.
• Chipmunks leave clean round burrow entrances roughly two inches across with no mound of soil at the opening, and dig in beds and along foundations and walls.
• Shrews are too small to build the tunnel system but readily use mole runways, so they turn up in traps and get credited with damage they did not cause.
• Skunks and raccoons dig for grubs, leaving cone-shaped divots and small pits in turf, or rolling sod back where grub numbers are high. That damage is a symptom of the same food source the mole is working, which is why it often shows up on the same property.

Bulbs, seeds, and tubers are the clearest tell. Moles are insectivores and do not eat them. Voles and mice do, and they travel through mole runways to reach them, which is how the mole ends up holding the blame.

What Moles Eat

Moles eat constantly. Published intake figures run from 70 to 100 percent of body weight per day, driven by the energy cost of plowing through soil. That appetite is the lever the whole program turns on.

The standard reference in wildlife damage management reports stomach contents from 100 eastern moles. The results:

White grubs were present in nearly two-thirds of the animals examined, more than earthworms were. Grubs are not incidental to a mole's diet. They are one of its principal foods, and any account of mole management that treats them as a side item is not describing the animal accurately.

One honest qualification, because we would rather give it to you than have you find it later. Those figures count how many stomachs contained each item, not what share of the meal it represented. They establish that grubs are a major food. They do not establish a ranking by weight.

Integrated Pest Management for Moles

Integrated Pest Management is not a product. It is a decision process: identify the species, monitor to learn where it is and how much of it is there, judge whether the damage warrants action, then select from the whole toolbox. On a mole property that toolbox has six compartments, and most jobs use several of them.

Identification and monitoring

We walk the property, confirm the animal, and map the runway network. Not every tunnel is in use. Runs that end abruptly or double back are often abandoned. Flattening a section and rechecking it within twelve to twenty-four hours separates the working tunnels from the dead ones, and traps go only on confirmed active runs.

Direct removal

Trapping is the most effective and practical method of removing moles, and every serious reference in the field says so. Harpoon, scissor-jaw, and choker-loop designs each work when set correctly on an active run, because the mole springs them following its own instinct to reopen a blocked passage. Set placement, depth, soil packing, and trigger tension decide the outcome. A trap that has not produced in two days is telling you the mole changed its route or detected the set, and it gets moved rather than left.

Labeled toxicant baits formulated around what moles actually eat are used on active runs where they fit the situation, under label direction. Product registrations in this category change, so what we carry is what is currently registered for use in Kentucky, not whatever a 1994 handbook listed.

Food source management

This is the part most companies get wrong in both directions. Some sell grub control as mole control, which it is not. Others tell you the food base is irrelevant, which the data above does not support.

The wildlife damage management handbook lists food source reduction under cultural control methods, reporting that reducing soil moisture and removing the food source through insecticide use discourages moles and generally results in lower populations. Milky spore disease is described in the same source as a satisfactory natural control for certain white grubs, one of the mole's major food sources, with the caveat that it takes several years to establish and works best applied community-wide.

That same source carries a warning we pass along every time, because it protects you from a surprise: before moles leave an area, they may increase digging in search of food, so surface damage can get worse for a period before it gets better.

Our turf grub applications are made on the turf calendar, are registered and sold as turf protection for root systems, and on the treated acreage reduce the seasonal soil invertebrate load. They are one component of a mole program, not the program.

Habitat and cultural modification

Consistent heavy irrigation holds earthworms and soil insects near the surface and holds moles with them. Adjusting the watering program costs nothing and changes the property's attractiveness. Rolling or packing surface ridges puts turf roots back in contact with soil so the grass recovers instead of browning along every run.

Exclusion

Not practical across an open lawn, but genuinely effective around small high-value areas such as seed beds, raised beds, and ornamental plantings. A 24-inch sheet metal or hardware cloth barrier set at the ground surface, buried to at least twelve inches and bent outward at a right angle, will keep moles out of a defined space.

Repellents

Repellents move an animal rather than remove it. Where relocating pressure off a specific area is an acceptable outcome, they have a role. Where the goal is fewer moles, they are not the tool, and the animals return when the habitat still suits them.

What We Will Not Sell You

Broken glass, razor blades, thorny branches, bleach, petroleum products, household lye, chewing gum, and human hair in the tunnel. Mole wheels, windmills, pop bottles on sticks, and vibrating or electromagnetic stakes. The mole plant or caper spurge,Euphorbia lathyris, and castor bean plantings, which are also poisonous to people and have no research behind the claim.

None of these have been shown to work. They are listed here because the published literature bothers to knock them down one by one, and because every one of them is currently for sale somewhere.

How Many Moles Are Actually Out There

Fewer than the damage suggests. Moles are solitary and territorial, and each animal needs a large hunting area because of how much it has to eat. Three to five moles per acre is described as a high population, and a single animal will thread an astonishing amount of ground. A yard that looks like it is under siege by a dozen animals usually holds one or two hard-working ones.

That is good news and it is also the reason the work is finite. Remove the animals present and the damage stops, at least until the next disperser arrives.

Why This Is Sold as a Program

Mole pressure is a property condition, not a one-time event.

When a mole is removed, the runway system it built stays in the ground. Adjoining lawns, fence rows, and pasture keep producing animals, and good mole habitat refills. Where nearby populations are high and the habitat is attractive, reoccupation is the expected outcome rather than a failure of the work.

So we offer it two ways. As a job worked to resolution, priced with a guarantee period, for the property that needs the current animals gone. Or as an annual turn-key program for the property that is going to have this conversation every spring, which covers unlimited removals, visits triggered by activity rather than by a calendar, and one late-spring turf grub application.

Turf repair and site recommendations are included either way.

Mole work is priced two ways: Mole Removal by the job, and the annual Turn-Key Mole Program. See both on the price list.

Why a Wildlife Biologist

Most lawn care companies treat moles as a chemical problem because chemicals are what they sell. Wildlife damage management is a different discipline, and it starts with the animal rather than the product.

Southern Wildlife Resources is led by a Ph.D. wildlife biologist and Certified Wildlife Biologist with a career spent in state and national wildlife management, including eight years as Commissioner of the Kentucky Department of Fish and Wildlife Resources. We work these animals in the field every season, we read the primary literature rather than the summaries of it, and we will tell a customer when the product they were about to buy will not do what they think it does.

Do Moles Do Any Good

Yes, and it belongs on this page. Mole tunneling aerates soil and subsoil, improves drainage, carries humus deeper into the profile, and brings subsoil nearer the surface. Moles also remove large numbers of white grubs and other damaging soil insects from lawns and gardens. In a pasture, a woodlot, or a back corner, a mole is an asset.

The problem is location, not the animal. If a mole is not out of place, leave it alone. Control is for the ground where the damage is not acceptable.

Service Area and Next Step

Southern Wildlife Resources serves Central and Northern Kentucky, including Anderson, Boone, Bourbon, Boyle, Bracken, Campbell, Carroll, Clark, Fayette, Franklin, Gallatin, Grant, Harrison, Henry, Jefferson, Jessamine, Kenton, Madison, Mercer, Nicholas, Oldham, Owen, Pendleton, Robertson, Scott, Shelby, Spencer, Trimble, Washington, and Woodford counties. Residential lawns, commercial grounds, and larger properties.

Get in touch for a site inspection. Tell us what you are seeing and we will tell you what is actually causing it.

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Frequently Asked Questions

Will grub control get rid of my moles?

Not by itself, and anyone who tells you it will is selling. Grubs are a major mole food, present in 64 of 100 eastern mole stomachs in the standard reference dataset, and reducing the food base is a recognized cultural control method that the literature says discourages moles and generally results in lower populations. But moles also eat beetles, earthworms, larvae, centipedes, and spiders, and a hungry mole digs more before it leaves. A grub application is one tool in a mole program. Removal is what takes the animals off your property.

Are moles eating my flower bulbs?

No. Moles are insectivores. Voles and mice eat bulbs, seeds, and tubers, and they travel through mole runways to reach them, which is how the mole ends up blamed for it.

How many moles are in my yard?

Almost certainly one or two. Three to five per acre is considered a high population. The size of the tunnel network is not a count of animals, and neither is the number of molehills.

Why did the damage get worse after treatment?

That can happen and it is documented. Moles searching harder for food may increase digging before they leave an area. It is one reason we pair food source work with removal instead of relying on it alone, and one reason we tell you about it in advance rather than after you call.

Why is the damage worse in spring and fall?

Soil moisture. Warm rain brings prey toward the surface and the moles follow into the top few inches of soil, which is when the ridges appear. In hot dry weather and in frozen ground the prey goes deeper and so do they.

Do the ultrasonic stakes and home remedies work?

No. Electromagnetic and vibrational repellers have not held up in testing, and neither has anything else on the home remedy list.

The moles came back. Was the work a failure?

No. Removal takes the animals that are present. The runways remain, and where surrounding habitat is good and nearby populations are high, another animal will eventually move in. That is exactly why we offer an annual program alongside job work.