Deter & Reduce Vole Populations with IPM (Integrated Pest Management)
You can deter vole populations and re-infestation, especially voles that forage above ground, by making their habitat less suitable for them. Lawn and turf areas should be mowed regularly. Close mowing in the fall before snow arrives can reduce damage to the lawns. Remove weeds, heavy mulch, and dense vegetative cover surrounding the lawn areas. These things provide food and protection from predators and the environment. If you remove this protection, their numbers will decline.
Fallen birdseed from feeders attracts voles to an area. Cleanup and prevention of birdseed falling to the ground will reduce vole infestations.
Landscape fabric or plastic mulch that is placed around your shrubbery provides an inviting place for burrowing vole types. If removed then it may expose them to more predators.
If you have vole problems in your vegetable garden, then don't leave leftover crops over winter.
Remove the potatoes and carrots and any other root crops that may provide a food source for winter. Also remove any refuse for them to hide in.