Setting a vole trap is only half the battle; you also need to know what is the best bait to use for voles. Since a vole is a herbivore, peanut butter mixed with oatmeal works incredibly well. Placing this mixture on your voles traps attracts the vole rodent instantly out of its tunnel. Always position your baited voles trap directly inside their active grass runways. Knowing what is the best bait to use for voles guarantees high success rates when trapping voles around your home.