Norway rat adults have course dark grey-reddish brown coats along with a heavy set body with a blunt muzzle. Their tails are shorter than their heads and bodies combined. Their ears are small and close-set. A Norway rat’s maximum weight is about 1lb. Their young resemble the adults but they’re smaller in size, they also have large heads and feet. There is usually 8-12 young per litter and they have 4-7 litters a year. Their Average life cycle is 1 year or less.
Norway rats live in the ground in burrows and in rooms where food is stored, prepared or handled, ie. basements, crawl spaces, outbuildings, dumps, and garbage areas. Norway rats will consume much more food in a single feeding than a mouse. If enough food is available to rats they will frequently horde the available food and consume it at a later date.
Treatment starts with a thorough inspection for the primary source of the infestation and any conducive conditions. After that recommendations are made for good sanitation practices and/or elimination of conducive conditions (sealing of rodent entry points). The best way to get rid of a Norway rats infestation is to trap and remove rats. This can take some time depending on the level of infestation. We maintain control by using baiting management techniques around the building. We always recommend rodent entry points be sealed such as crawlspace accesses, missing or broken screen vents, and gaps in the foundation. An inspection by trained and licensed expert is critical in effective rodent control.