RODENTS

It probably goes without saying, but clean out anything that looks like food to a mouse--empty the kitchen cupboards, etc. An unheated trailer with no food is far less attractive to a critter than a nice warm one with oatmeal or whatever.

I set the plain old Victor mouse traps in my motorhome while its stored. Over the few years I've had it, I have caught a total of one mouse (and they're very much around in the semi-rural area I live in). It also appears I got him or her before there was any damage done...at least, I've seen absolutely no evidence of chewed or fouled bits.

While it's hard or impossible to seal every hole in a trailer, it is relatively simple to keep track of the possible entry points: they have to either climb a wheel, the tongue jack, or (if plugged in) the power cord. The more proof you can make those points against climbing aboard, the better off you're likely to be.

Forget filling the holes, you will never find them all. Put down a bunch of glue boards. Check on a regular basis

Traps, and sealing (I also use barn cats)

I don't like poison as the beasts will die and stink up the rig

Neither soap nor dryer sheets work, the same is true of home made herbal or oil

Poison or traps are you best option. Rodents can cause a LOT of damage.

Learn to make your own bait station or buy one like this. The dog won't be able to get at the bait and your RV will be safe from big damage.

Seal each and every hole. Steel wool, steel window screen will do. Follow that by using rodent proof spray foam. Sticky traps inside is about all you can do.