Mice are not always looking for food, they may simply be looking for a safe place to live and breed. Of course, if there is food stored in the garage, especially dog food the mice will eat it and chew holes in the bag but if there is no food they may still occupy it simply to have a home. Mice can find food outside and then return to their nests with it. They will often collect bird seeds and nuts, berries and edible roots. One thing mice do not need a great deal of is water. Most mice can go up to three years without water as they evolved to not need it. This means they have very little moisture in their bodies and can exist for long periods without it. This helps them inhabit human structures as their goal is finding food, not water. Unlike rats who have very high water content and need constant and regular access to it. For this reason, rats rarely live in human homes, they prefer to borrow from the outside of the house and enter it to find food. Mice have been with humans, eating our food and invading our homes since we had too much to carry on our backs. The age of agrarianism cause us to have to settle down and build a home in which to store all the food and things we used to carry around with us. This moment cause us to become a sort of prey to small rodents who would invade our food supplies. This has been happening for over thirty thousand years and animals like mice, rats and squirrels have become very adept at living off our spilled milk and cuts. However, humans have also developed many ways to get rid of them. In the case of mice infesting a garage the way to get rid of them is different from preventing them in the first place.
Prevention is the most important step, even if the mice are already in the garage, treating them is secondary to the task of stopping them from getting inside in the first place. This is a process of inspecting the exterior of the structure for openings or entryways the mice can use or make to get inside. The first entryway mice always use is the front door. In the case of a garage door, the entry point is usually very easy to access as most garage doors close ventricles instead of horizontally. When they meet the ground they often don’t meet all of it and leave gaps. This could be because the door was not installed correctly or because the foundation of the driveway was not played correctly. Small openings can be resolved with weather stripping but larger gaps need to be sealed off with concrete or a door replacement. Speaking of the foundation, the foundation of most garages is concrete. As concrete ages, it can become brittle. Small pieces fall off and make holes. These holes can be enlarged by mice and other rodents as they have incisors that keep growing throughout their lives and must chew on things just to keep them at bay. This means chewing a hole in concrete is something they can do. Once one opening is made dozens of mice can enter. Sealing off openings like this will prevent mice from entering in the future and allow your treatment to be effective.