In early spring, after the snow melts, many Eagle homeowners find narrow, winding paths worn into the lawn, with dead grass along them and small holes at the ends. That’s vole damage. Voles are small rodents that stay active under snow all winter, eating grass, roots and the bark of young trees and shrubs. A few can turn into a large population in a single season, and the damage shows up fast.
Here’s how to recognize vole activity in an Eagle yard and the steps that keep it under control.
What Voles Are
Voles, sometimes called meadow mice, are stocky rodents about 4 to 7 inches long, with small eyes and ears and a short tail. They’re different from mice, which come indoors, and from pocket gophers and moles, which tunnel deeper and leave mounds. Voles live mostly at the surface and just below it. The University of California’s pest notes on voles have a good overview of their biology.
Signs of Vole Activity
- Runways: paths about 1 to 2 inches wide worn through the grass, most visible as snow melts in spring.
- Burrow openings: small, round holes about the size of a quarter, with no mound of soil around them.
- Gnawed bark: chewed bark at the base of young trees and shrubs, sometimes all the way around the trunk.
- Damaged roots and bulbs: plants that wilt or pull out easily, and missing bulbs or root crops.
- Droppings and clippings: small droppings and bits of cut grass along the runways.
Step 1: Walk the Yard
Look for runways along fences, under shrubs, near garden beds and around the edges of the lawn. Check the base of young trees for gnawing. Note where cover is heaviest: tall grass, groundcover, mulch piles and woodpiles. To find active burrows, press a few openings closed and check in a day or two for ones that have been reopened.
Step 2: Remove Cover
Voles avoid open ground because it leaves them exposed. Reducing cover is one of the most effective long-term steps:
- Keep grass mowed, especially along fences and bed edges, and mow the lawn short in late fall before snow.
- Trim groundcover and low shrubs, and clear tall weeds.
- Keep mulch pulled back a few inches from tree trunks and no more than a few inches deep.
- Move woodpiles, debris and stored materials off the ground or away from planted areas.
- Clean up fallen fruit and spilled seed.
Step 3: Physical Barriers
- Wrap the base of young trees with hardware cloth (1/4-inch mesh), extending a few inches below the soil and well above the expected snow line.
- Line the bottom and sides of raised beds with hardware cloth. Our post on vole damage to raised beds covers that in detail.
- Protect bulbs with wire baskets when planting.
- For gardens, a hardware cloth fence buried several inches deep and bent outward at the bottom helps keep voles out.
University of Idaho Extension’s publication on managing voles covers barrier and habitat options suited to Idaho yards.
Step 4: Trapping
For small to moderate populations, snap traps placed in runways work well. Set them at right angles to the runway with the trigger in the path, near active burrow openings. Covering traps with a board or box keeps other animals away from them and makes voles more likely to use the spot. Check traps daily, wear gloves when handling them, and keep trapping until there’s no new activity.
Step 5: Keep Watching Through the Seasons
- Spring: inspect runways after snowmelt, repair lawn damage, check tree trunks.
- Summer: keep grass and weeds trimmed, watch garden beds.
- Fall: mow short, pull mulch away from trunks, install tree guards before snow.
- Winter: watch for new holes and runways on warm days, especially near shrubs and fences.
Vole populations rise and fall from year to year, and yards next to fields, canals or open space often see voles move in from outside. Oregon State University’s guide PNW 627 covers vole management in Pacific Northwest landscapes and orchards.
What Not to Do
- Don’t rely on repellents or home remedies alone. Results are inconsistent.
- Don’t use mouse products in the yard that aren’t labeled for voles or outdoor use.
- Don’t wait for spring. Most damage happens under the snow, so fall prevention matters most.
For more, see our posts on preventing voles in landscaping and vole control on orchard properties.
Common Questions
How fast can voles damage a lawn?
A population that builds up over winter can leave a lawn covered with runways by the time the snow melts.
Will the grass grow back?
Usually. Rake out the runways and dead grass, and the lawn should fill in with normal watering and fertilizing. Severely damaged patches may need reseeding.
Are voles the same as gophers or moles?
No. Gophers push up soil mounds, and moles leave raised ridges and volcano-shaped mounds. Voles leave surface runways and open holes with no mound.
Vole Control in Eagle
Vole control is a separate service from our regular residential pest control plans, and gopher control is separate as well. Our plans cover spiders, ants, wasps and hornets, mice, rats and fall invaders, with quarterly, bi-annual and one-time service. Quarterly service plan customers get free return visits. No contracts; cancel with 30 days’ notice. Rodent service is included at no extra cost with quarterly service plans; traps and materials are billed separately. We also service commercial properties and their landscaping.
ProGuard is based in Eagle and serves homes and businesses in Eagle, Boise, Meridian, Star, Nampa, Caldwell, Middleton, Emmett and Garden City. Call (208) 352-2062 or contact us to schedule an inspection.