Of course, you are in need of mouse control if you see signs of mice in your yard or in your home. The question, then is how to identify signs of mice so that you can take the next step toward eliminating them.
In the Yard
It's not difficult to recognize the signs of mice in your yard. Mice love to tunnel, chew, and eat fresh seeds from gardens. If you notice gnawed roots, bark, and stems, chances are high that mice have been at work. Mice also love to dig and build tunnels, damaging the root systems of your plants.
In short, mice in the yard make themselves into quite a nuisance, and their signs are obvious.
In the Home
Signs of mice in the home are similarly easy to spot. According to Cornell University, the following checklist can be used to identify signs of mice in the home:
Droppings and urine stains. The droppings of a house mouse have pointed ends and are about 1/8 - 1/4" long.
Gnaw marks and shavings. Look for tooth marks on baseboards, doors, window and door casings, etc.
Burrow holes. Look in baseboards, corners, walls, entryways, and foundations.
Runways, tracks, and "rub marks" (smudges). Mice have poor eyesight, so they tend to hug the walls during travel.
Noise. You may hear scuttling, squeaking, or gnawing inside the walls, especially at night.
As you can see, mice can cause quite a bit of damage to homes and yards alike, and signs of their presence are not difficult to interpret. If you have spotted evidence of a mouse infestation, the time has come to act.
Although some people might be tempted to resort to DIY methods in such cases, these measures are often short-sighted and of limited effectiveness. Your best option, in the end, is to consult with a pest control professional to ensure safe, effective removal.