Mice dislike the odor that cloves omit, making cloves a good item to position around your trailer. However, cloves on their own often do not give off enough of a scent to deter mice for a long period of time. Therefore, soaking fresh cloves in essential clove oil will help increase the scent and work harder to prevent mice from making your trailer their home.
Peppermint is another herb that mice dislike. You can either grow it fresh (if you have constant access to the trailer) or soak cotton balls in essential peppermint oil. Placing the cotton balls around the trailer will work to stave off infestations. However, the scent can wear off quickly, so you may need to replace them every two to three weeks. Lavender, too, is said to prevent mice from entering a space. Look for dried lavender or lavender-scented dryer sheets.
For a prevention method that lasts a bit longer than a single item on its own, bundle up little sachets of infestation prevention substances. Mix a drop or two of peppermint or clove essential oil with whole cloves, fresh peppermint leaves and lavender. Tie the mixture up in a few squares of cheesecloth and place the sachets in problem areas throughout your trailer, including possible entry points such as doors, windows and floorboards.
Before leaving your trailer in its storage garage, plug up any holes you can find. This includes gaps in the doors, cupboards and floorboards. As mice are very flexible creatures, it only takes a hole the size of a dime to let a mouse into a space. Additionally, ensure that all food and crumbs are cleared away from the inside of the trailer. If the mice do not smell food, they are less likely to want to enter your trailer in the first place.
