We have a vole colony in our vegetable garden, and I am setting snap traps with peanut butter bait. I am putting the baited end of the trap into the tunnel entrance, then placing an empty nursery pot over the top so that the vole will sense "cover". The traps are snapping but not catching any voles, and of course the bait disappears. Can you please suggest how I can refine my strategy?
Polk County Oregon
The Extension publication "Meadow Voles and Pocket Gophers: Management in Lawns, Gardens, and Croplands" recommends setting traps crosswise on surface vole runs. The animals have established runs, and they will trigger the trap as they dash along: https://catalog.extension.oregonstate.edu/pnw627