Answer: I am so sorry. Voles are so destructive. Their population is usually cyclical meaning it will peak and then fall off naturally but of course that does not solve the immediate problem. Habitat modification, encouragin their natural predators and enclosing plants with a surrounding strip of wire mesh fencing (hardware cloth) can help. Trapping and sometimes baiting are the usual control methods for residential use, although baiting is potentially dangerous for pets and other animals. Your local county extension should be able to give you specific instructions on what works best and can be used by homeowners in your state. Here is a description of the fencing technique and habitat modification steps you could try. You may need to cut and paste the complete url to make it work correctly.
I hope this helps.
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