Ultrasonic rodent repellent ?

[Brian Runau]

We don't have pets, so I keep the poison blocks in our garage year round. House is tight. Had one a inside a few years ago, found the hole, filled it with steel wool and caulked over it. Seemed to cure the problem. Brian

[Perry Holbrook]

So, I haven't found any openings into the crawl space and there is no food source under there. But at least one is/has been chewing. I bought some bait and will ask the son-in-law to go under and check/repair the damage and spread some bait.

The house and shop is built near a hay field and even with lots of hawks we have many mice. I take care of the shop with peanut butter and traps. The crawl space is just harder to manage and I was hoping the electronic things would run them out, guess not.

[Bill Dufour]

I think some will run away from the noise. The mice left will be the heavy metal punk rock types. Get into more trouble then the average mouse. causing more mischief to you and yours.
Bill D