unltrasonic mouse repellants... do they work?

[Slumlord]

I have a tenant who is deathly afraid of mice. I have had a rather intractable problem in this one building where she resides. I bait, kill them off, and they come back a few months later.

I am in the process of filling all the interior walls with cellulose to deprive them of nesting areas and to seal all the holes that they come through. This is a very old building that shares common walls, so there are lots of penetration that allow the mice to move around at will. Unfortunately, the holes, plumbing penetrations, etc are all buried behind the walls. Closing them up directly is not an option.

I need SOMETHING as a temporary stopgap measure, until I can finish retrofitting the place. I have read that mice eventually build up a resistance to those ultrasonic emitters. Has anyone here had good / bad experience using them?

 

[Gene]

I have a tenant who is deathly afraid of mice. I have had a rather intractable problem in this one building where she resides. I bait, kill them off, and they come back a few months later.

I am in the process of filling all the interior walls with cellulose to deprive them of nesting areas and to seal all the holes that they come through. This is a very old building that shares common walls, so there are lots of penetration that allow the mice to move around at will. Unfortunately, the holes, plumbing penetrations, etc are all buried behind the walls. Closing them up directly is not an option.

I need SOMETHING as a temporary stopgap measure, until I can finish retrofitting the place. I have read that mice eventually build up a resistance to those ultrasonic emitters. Has anyone here had good / bad experience using them?

The only success gained, is the seller parting you from your money.

Get more traps. or one of those catch and release types and then continue with you plans.

As for the catch and release..Dump them in a bin by
themselves..Winner eats best

 

[Goedjn]

I have a tenant who is deathly afraid of mice. I have had a rather intractable problem in this one building where she resides. I bait, kill them off, and they come back a few months later.

I am in the process of filling all the interior walls with cellulose to deprive them of nesting areas and to seal all the holes that they come through. This is a very old building that shares common walls, so there are lots of penetration that allow the mice to move around at will. Unfortunately, the holes, plumbing penetrations, etc are all buried behind the walls. Closing them up directly is not an option.

I need SOMETHING as a temporary stopgap measure, until I can finish retrofitting the place. I have read that mice eventually build up a resistance to those ultrasonic emitters. Has anyone here had good / bad experience using them?

Buy your tennant a pet ferret. The mean kind, not the friendly ones.