Our trailer seems to be a mice magnet these days. I have had no luck with deterrents and removing food.
I have had nothing but mixed results with traps too, with one exception. The one thing that continues to be successful for me is the homemade "bucket trap". I have only been setting it out once I know there is a new resident in the trailer, but am now planning to leave it in there long term. The thought that I may be drawing more mice into the trailer than would otherwise venture in does concern me, but at least they will be caught and not be roaming the trailer for weeks or months before I discover their presence. The beauty of the bucket trap is it can catch and hold dozens (or even hundreds?) of mice without needing any attention.
Wish there was a sure fire way to put an end to the mice problem once and for all.
'04 GMC Sierra 2500HD, CCSB, D/A, MaxBrake, B&W Companion, Retrax Pro, AR Power Steps
2013 Rockwood 8289WS w/Diamond pkg
1969 Camaro RS/SS Convertible
Dad's old 1968 Empi Imp (recently recovered from under 21 years worth of boxes/dust)