I talked about vole control a few e-mails earlier but I think I forgot to add
a great control. Mix a bottle of castor oil with some detergent and warm
water in a plastic milk jug then pour it down the holes. Voles hate castor
oil. You could plant Castor bean plants but they are very posionous. I also
put hot peppers in warm water and let it soak then poured it down the holes.
Seems to be working. They have moved out for now.