The destroyer sulphur bomb worked for me. Finding the damned holes is the hard part.
The holes seem like they collapse in.
Mine are not going away anytime soon.
Next week I start cutting the grass super low.
__________________
It is not the most intellectual of the species that survives; it is not the strongest that survives; but the species that survives is the one that is able best to adapt and adjust to the changing environment in which it finds itself. Charles Darwin
We had voles for the first time in our garden. Unfortunately we have a low electric fence to keep the cats and dogs out so they had free run of the garden till I noticed the holes.
All good now though, dug the garden last week and killed some voles in the process. Fence is also down now so the dogs should dig out any i didn't get.
__________________ Horizon Parent Society (Helping kids with disabilities)
In addition to cutting the lawn very low in fall, I also stopped applying fall fertilizer several years ago. Both measures have made my lawn less of a winter food source for voles.