The way that I see it there are about three ways to keep Mice out of a garden. If you spend countless hours tending to your garden and are watching some other critter take all of the harvest, then you are probably a little more than agitated. If you are like me, then you really enjoy reaping the rewards of a garden every year and experiencing the tasteful sensations of the vegetables. I find it amazing that so many people jump right to the phone and call the exterminator when they have a problem such as this.
Folks, unless you just have the extra coin laying around to call an exterminator, then why not just try to do it yourself. There is no shame in calling an exterminator - who wouldn't want to have a professional just come out and fix all problems in a jiffy. I just don't have that kind of jingle to be paying for such purposes.
One of the ways to do this is to use ultrasonic mouse deterrents. These are the cool gadgets that send out really high frequencies and deter Mice and other rodents. The concept is simple, by placing one of these items out, the mice are supposed to stay out of that items range. Mice and rats are known to be deterred by such frequencies. There are several models that can be placed in the middle of a garden in order to protect a person's crops.
The next method that many people use involves traps. Some use live mouse traps and others use the spring loaded traps. For most people, the deciding factors have to do with ethics. Anyways, the idea is to place baited traps around and in the garden in order to catch a few of the mice in the area.