Rodent infestation

Asked August 21, 2020, 12:42 PM EDT

What's the best way to rid an early 18th century row house of mice? This is a problem for many of the inhabitants of this group of row houses. Do they all need to be treated simultaneously? Thanks.

Howard County Maryland

1 Response

It sounds like the group is cooperating regarding mouse control and everyone should be on the same page. Older homes with suitable habitat are more challenging and can take longer to control. Try to remove the conditions allowing the pest to enter and live.

Conventional snap-type mousetraps are the most effective means of control. They should be used as part of a three part approach: sealing up, cleaning up, and trapping. Seal up holes, cracks or crevices larger than ¼”. Plug holes around the foundation or other areas with steel wool, hardware cloth, copper mesh, silicone sealant, etc.
Store any potential food sources in metal or other rodent proof containers. Do not leave pet food out overnight.
Look for and clean up any possible nesting sites and nesting material such as paper or fabrics.

Place the traps in the areas where you notice the most mice activity. Bait them with peanut butter or a cotton ball tied to the trigger (female mice like to use these for nesting). The trap should be placed against the wall so it forms a ‘T’ with the trigger facing the wall.

Wear disposable gloves when handling used traps. After several weeks of trapping, and habitat modification, you should be able to eliminate/reduce the problem of mice. Here is our page on mice https://extension.umd.edu/hgic/topics/mice
and a link from Penn State https://extension.psu.edu/is-there-a-mouse-in-the-house-eliminate-mice-with-ipm

If you are continuing to experience problems, contact a pest control company that specializes in rodent control for the best ways to proceed.

Marian