Mice And Rats


Mice And Rats | Commensal Rodents

Commensal rodents are prevalent in NJ and can cause significant problems if left unaddressed. The most common commensal rodents found in the area include the house mouse, deer mouse, white-footed deer mouse, Norway rat, and the Roof rat.

Common Commensal Rodents in NJ

House Mouse

The house mouse is a small rodent known for its ability to adapt and thrive in various environments. They are typically gray or brown in color and have a pointed snout and large ears. House mice are known to reproduce rapidly, making them a common nuisance in homes and businesses.

House mice are primarily nocturnal and are excellent climbers, allowing them to access different areas of a building. They can contaminate food, damage property, and transmit diseases such as hantavirus and salmonellosis.

Deer Mouse

The deer mouse is another common commensal rodent found in NJ. They are typically brown or gray with a white underbelly and have large eyes and ears. Deer mice are known for their agility and ability to jump, making them excellent climbers.

Deer mice are carriers of hantavirus, which can be transmitted to humans through contact with their droppings, urine, or saliva. It is important to address deer mouse infestations promptly to minimize the risk of disease transmission.

White-footed Deer Mouse

The white-footed deer mouse is similar in appearance to the deer mouse but can be distinguished by its white feet. They are primarily found in wooded areas and can enter homes and buildings in search of food and shelter.

White-footed deer mice are carriers of Lyme disease, which can be transmitted to humans through tick bites. It is crucial to address infestations promptly and take necessary precautions to prevent tick bites.

Norway Rat

The Norway rat, also known as the brown rat, is a larger rodent with a stocky build. They have a blunt snout, small ears, and a scaly tail. Norway rats are excellent burrowers and can cause significant damage to structures and property.

These rats are known carriers of various diseases, including leptospirosis, which can be transmitted to humans through contact with their urine or contaminated water sources. It is important to address Norway rat infestations promptly to minimize health risks.

Roof Rat

The Roof rat, also known as the black rat, is a slender rodent with a pointed snout and large ears. They are excellent climbers and are often found in attics, roofs, and trees. Roof rats can cause damage to structures and contaminate food sources.

Roof rats are carriers of diseases such as plague and typhus, which can be transmitted to humans through fleas or direct contact with their droppings. It is crucial to address Roof rat infestations promptly to prevent disease transmission.

Signs of Mice and Rat Infestations

It is important to be aware of the signs of mice and rat infestations to address the problem promptly. Some common signs include:

Physical evidence

  • Gnaw marks and chewed wires
  • Droppings and urine stains
  • Nests and burrows

Auditory and visual cues

  • Scratching noises
  • Sightings of rodents

Unusual pet behavior

  • Increased agitation or curiosity
  • Unexplained pet illnesses

Health Risks Associated with Mice and Rats

Mice and rats can pose significant health risks to humans. Some of the potential health risks include:

Diseases transmitted by rodents

  • Hantavirus
  • Salmonellosis
  • Leptospirosis

Allergies and asthma triggers

Rodent droppings, urine, and dander can trigger allergies and asthma symptoms in susceptible individuals.

Contamination of food and surfaces

Mice and rats can contaminate food and surfaces with their droppings, urine, and hair, leading to potential foodborne illnesses.

Prevention and Control Measures

Preventing and controlling mice and rat infestations require a proactive approach. Some effective measures include:

Rodent-proofing your home

  • Sealing entry points
  • Proper storage of food and waste

Maintaining cleanliness and hygiene

  • Regular cleaning routines
  • Proper waste management

Professional pest control services

Seeking professional help from pest control experts can ensure effective and long-term solutions for mice and rat infestations.

Frequently Asked Questions

Q: How do I know if I have a mice or rat infestation?

A: Some common signs include gnaw marks, droppings, nests, scratching noises, and sightings of rodents.

Q: Are mice and rats dangerous to my health?

A: Yes, mice and rats can transmit diseases and trigger allergies and asthma symptoms.

Q: How can I prevent mice and rat infestations?

A: Rodent-proofing your home, maintaining cleanliness, and seeking professional pest control services are effective prevention measures.

Q: Can I get rid of mice and rats on my own?

A: While DIY methods can be effective for small infestations, professional help is recommended for larger or persistent infestations.

Q: What are the signs of a rodent nest?

A: Signs of a rodent nest include shredded materials, such as paper or fabric, and the presence of droppings and urine stains.

Q: How do I clean up after a mice or rat infestation?

A: It is important to wear protective gear and use appropriate cleaning methods to minimize the risk of disease transmission. Consult with professionals for thorough cleanup.

Q: How long does it take to eliminate a mice or rat infestation?

A: The duration of elimination depends on the severity of the infestation and the chosen treatment methods. Professional pest control services can provide a more accurate estimate.


Addressing mice and rat infestations promptly is crucial to protect your health and property. If you suspect an infestation, it is recommended to seek professional help for effective and long-term solutions.