Vole

Microtus spp.

moderate risk
rodent

Overview

Small mouse-like rodents that cause serious damage to lawns, gardens, and orchards through underground tunneling and bark girdling.

10-20cm, stocky body. Short tail, small eyes, short ears hidden in fur. Brown to gray coat.

Prevention Strategies

  • •Hardware cloth cylinders around tree bases
  • •Keep grass mowed short around trees
  • •Remove ground cover and mulch away from tree bases in winter
  • •Habitat modification to reduce shelter

Control Methods

  • •Snap traps in active runways
  • •Zinc phosphide baits in runways (follow label strictly)
  • •Predator encouragement (raptors, snakes, foxes)
  • •Habitat modification

Interesting Facts

  • •Population cycles peak every 3-5 years with 10-fold increases
  • •Entire orchard rows can be girdled and killed under a single winter's snow
  • •Hawk and owl populations rise and fall with vole populations
  • •Different species have different habitat preferences - meadow voles vs pine voles