I don't have any voles. Could it be because I have no weeds? I don't
know and I'm not curious enough to research it.
Everything I grow is mulched! I use shredded raspberry and blackberry
canes and tree prunings around trees and mulch with pine needles on
everything else including the vegetables. When I can't get enough needles,
I use leaves in the aisles. Landscape contractors and neighbors bring it,
saving them a trip to the dump.
Occasionally a skunk uncovers a burrow in the black raspberry beds and
my cats catch whatever they can.