This is a way to help repel voles and moles from your yard and a nice addition to trapping them in vole traps so that you can make sure the population shrinks. This vole repellent should be used with traps to monitor activity. This Liquid Fence Mole/Vole Quart Concentrate is easy to use all you need to do is attach to a hose and spray your yard and landscapes. It coats the earthworms and the roots of vegetation in your yard like trees and shrubs. This keeps the voles away from their food source causing them to move to another food source away from your yard.