We get a lot of voles which enjoy eating our garden and saplings. I’ve decent success by:
- garden: putting a wire mesh fence around it with 1/4" hardware cloth buried 4" underground
- trees: plastic protective tubes around the trunks and also keeping the grass/weeds around then cut short. Voles like the protection of tall grass.
We don’t have any moles! The voles must keep them at bay :-)