Mothballs emit a strong, unpleasant odor, but they are ineffective in deterring mice. Despite this myth's persistence, mothballs fail to keep mice out of homes. Understanding why mothballs don't work ...

Add Yahoo as a preferred source to see more of our stories on Google. Mothballs are ineffective at repelling mice. Using mothballs outdoors can harm the environment. Seal gaps and use traps to ...