Why Do Voles Dig Holes?

Voles are plant-eaters, feeding on the stems and blades of grass, and the roots, seeds and bulbs of flowering and garden crops. ... When voles make tunnels while searching for roots to eat, they do not create raised ridges. Voles create golf-ball-sized entry holes into their tunnels along walls and in mulched beds.

How do you stop voles from digging?

Remove vegetation

Voles don't like to feed out in the open. With this in mind, one of the easiest ways to control their numbers is through habitat modification. Remove dense ground cover, keep the lawn mowed, keep mulch light around trees and shrubs, and keep up on snow removal.

What does a vole hole look like in your yard?

The runways they create look like thin, dirt-colored trails that snake across the yard. Holes are another visible sign of vole activity. The animals dig dime-sized entrances to their burrows around the roots of plants. Following surface runways often leads to a vole hole.