Mice are one of the most common pests that homeowners in South Jersey encounter, especially during fall and winter months. These small rodents may seem harmless at first, but they can cause significant damage to your property, contaminate food, and even spread diseases. The most frequently found mice species in New Jersey are the house mouse, the deer mouse, and the white-footed mouse. Each species has distinct habits and risks associated with them. Understanding their characteristics and how to prevent infestations can help homeowners keep their properties pest-free.

House Mouse (Mus musculus)

The house mouse is the most common rodent pest in homes and businesses across South Jersey. This species is small, typically ranging from 2.5 to 4 inches long, with a light brown to gray coat and a hairless tail about the same length as its body.

Behavior and Risks

House mice are known for their adaptability and rapid reproduction, making them a persistent problem. They are nocturnal, meaning they are most active at night, and they tend to build nests in hidden areas, such as inside walls, attics, and basements. These mice are excellent climbers and can squeeze through gaps as small as a dime.

One of the biggest concerns with house mice is their potential to contaminate food and surfaces with their droppings and urine. They are also known to chew on electrical wiring, which can create fire hazards.

Prevention and Control

To prevent a house mouse infestation, homeowners should:

• Seal all gaps and cracks around the home’s exterior.
• Store food in airtight containers and clean up crumbs and spills promptly.
• Reduce clutter in storage areas to eliminate potential nesting sites.
• Use professionally installed traps and bait stations if an infestation is suspected.

Deer Mouse (Peromyscus maniculatus)

Deer mice are another common rodent found in South Jersey, though they are more frequently encountered in rural and suburban areas. These mice are slightly larger than house mice, with a body length of about 3 to 4 inches and a distinctly bi-colored tail that is dark on top and white underneath. They also have large eyes and ears, giving them a more “cute” appearance compared to house mice.

Behavior and Risks

Unlike house mice, deer mice prefer outdoor environments such as fields, forests, and barns. However, during colder months, they may seek shelter in homes, garages, and sheds. Deer mice are known carriers of hantavirus, a potentially deadly disease that can be transmitted to humans through inhalation of dust contaminated with their droppings or urine.

Prevention and Control

To reduce the risk of deer mice infestations, homeowners should:

• Store firewood and other debris away from the home’s foundation.
• Keep doors and windows properly sealed, especially in sheds and garages.
• Wear gloves and a mask when cleaning areas where mouse droppings are found to avoid hantavirus exposure.
• Use traps in garages, basements, and attics to detect early signs of an infestation.

White-Footed Mouse (Peromyscus leucopus)

The white-footed mouse closely resembles the deer mouse but has a slightly shorter tail and a more reddish-brown coat. Like deer mice, they have white underbellies and feet. These mice are common throughout wooded areas and are known to enter homes in search of warmth and food during the fall and winter months.

Behavior and Risks

White-footed mice are excellent climbers and often nest in attics, wall voids, and crawl spaces. They are particularly problematic because they can carry ticks that spread Lyme disease. Their droppings and urine can also contaminate food and surfaces, posing health risks to humans.

Prevention and Control

To prevent an infestation of white-footed mice, homeowners should:

• Trim back tree branches and shrubs that provide access to the home.
• Inspect attics, crawl spaces, and garages for signs of nests.
• Keep pet food and birdseed stored in sealed containers.
• Consider professional pest control treatments if these mice become a recurring problem.

When to Call a Professional

While DIY prevention methods can be effective for minor mouse problems, large infestations  can happen quickly and will require a professional. If you notice frequent sightings of mice, hear scratching noises in the walls, or find numerous droppings in your home, it’s best to contact a licensed pest control company to assess and eliminate the problem. At ELDER Pest Control, we specialize in safe and effective rodent control solutions across South Jersey. Our experienced team can identify the type of mouse infesting your home and implement a targeted plan to remove them and prevent future issues. Contact us today for a free inspection and take the first step toward a pest-free home!