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There are many different signs that you can look for to help determine if you are indeed dealing with a rodent infestation problem in your home. It is often difficult to gauge just how many rats or mice you have living in an area. 

Rats are active pests all year round, but are generally much more active at night than in the day. However, many conditions can cause them to be seen at all hours. Some of them include: a dramatic change in weather conditions, construction work being done, if they are very hungry, or if they are living in very populous living conditions.


Small rodent infestation signs

If you are dealing with a small number of rats living in one area, the only signs you will notice are small burrowing entrances from two to four inches in diameter. 

Moderate rodent infestation signs

If you have moderate rat troubles, you are likely to find their droppings and gnaw marks on wood or other locations around your house. Also, pay close attention at night to any sounds that may be coming from your attic. This indicates rat movement and the time when rats are actively searching out food and building their nesting areas. 

A good time to observe these noises is usually between the hours of 9:45 p.m. until 1:00 a.m. If you do happen to have household pets such as cats or dogs, you can also observe their behavior and see if they continue to sniff a certain area of the floor or walls in your residence. 


Substantial rodent infestation signs

If you are dealing with a large rodent infestation complication, you will very likely notice recent gnaw markings, along with fresh droppings from these critters. 

Gnaw markings can be found on most hard surfaces, including the floor, rafters in the ceiling, the siding on your home, electrical wires, ventilation ducts and areas around pipes within your walls. You will also be able to hear their very active behavior and scurrying sounds coming from your ceiling and/or walls. 

At night, check by using a flashlight to help you spot their eyes glistening from the light. Although rats tend to be nocturnal beings, you may actually see them present in your home during the day as well, especially when dealing with a significant size rodent population.

Why are rats and mice such a health risk to the community?

Around the world, rats and mice are known to spread over 35 diseases that can infect both people and pets, including:

  • plague
  • salmonellosis
  • leptospirosis
  • tularemia.

These diseases can be passed on by:

  • direct contact such as rat bites
  • unsafe handling and disposal of infected dead rats
  • eating food or drinking water contaminated with:
    • rat urine
    • faeces
    • saliva
    • hair
  • breathing dust contaminated with the urine and faeces of infected rats.

Diseases can also be transferred indirectly by ticks, fleas, and mites that live on infected rats.

Through their natural behaviours, rats can weaken building structures by:

  • gnawing through lead and aluminium sheeting
  • chewing through electrical wiring, which can start fires by shorting-out appliances or lighting fixtures.

Are you having problems with rodents?

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