Norway Rat

(Rattus norvegicus)

Although there are many types off rodents, one of the most common is the Rattus norvegicus, more commonly known as the brown rat.

As the brown rat has found its way to several continents, many will find that this type of rodent is referred to using different terminology, which includes but aren’t limited to the following. Parisian Rat, Norwegian Rat, Common Rat, Sewer Rat, Hanover Rat, Wharf Rat

The Norway rat is one of the largest rodents in the world and is a dominant species in most of Europe and North America.

The brown rat is often considered a pest, mainly because of the danger it poses, and the health risks imposed by the presence of Norway rat droppings and urine.

 

The reason why the Norway rat has found dominance in so many parts of the world was due to the way trade was carried out in the 18th century. The transportation of goods meant that the native rodent would stowaway and continue life in another part of the world.

DESCRIPTION

To many, different breeds of rats can look similar, but Norway rats are renowned for their larger size. The total length of a Rattus norvegicus averages around 16 inches and can be grey or brown.

Another common trait of the Norway rat is short dense fur that can be found all over their body aside from their nose, ears and tail.

Brown to grey back with a lighter underbelly

Weighing 350 - 500g

BIOLOGY

3 - 8 Litters per year

5 - 8 Young per litter

The gestation period of about 21 days

Maturity within 2 - 3 months

The average life span of 9 - 12 months

FOOD

Rats will eat a lot of whatever they can get, but will normally eat seeds, grain, fruit, nuts, veg etc, but can and will eat smaller animals and insects if hungry and willing to hunt.

HABITAT

Rats may take harbourage within your walls under, decking in gardens, burrow under property, basements, lofts.

Norway Rat

(Rattus norvegicus)

 

As the brown rat can be found in many parts of the world, it shouldn’t come as a surprise that the eating habits of the rodent can vary greatly. Studies in the past have shown brown rats to consume as many as 4,000 different items.

This often means that the Norway rat will settle into its surroundings and survive on what’s available. For example, in urban areas, this will mostly consist of discarded food.

REASONS FOR CONTROL

Property Damage

Mice will gnaw through electrical cables, skirting boards, old sealant to gain entry

 

Food Safety

Mouse droppings and urine can cause health issues.

Rat droppings and urine also add to the potential of disease, which is why many homes and businesses fear an infestation.

Weil's disease can be transmitted to humans from contact with mice or their urine

Like other rodents, the brown rat can carry many different pathogens which have the potential to lead to disease, examples of which are as follows:

  • Rat Bite Fever

  • Weil’s Disease

  • Q Fever

Wash down surfaces regularly if you have an infestation

An infestation of brown rats is often rapid due to brown rats have multiple partners and achieve sexual maturity quickly. As such, those looking to avoid an infestation need to ensure that all waste is managed the right way and that any storage areas for foods are kept secure. It can also be a good idea to ensure that all repairs around the home or business are fixed as soon as possible.

WHAT RAT DROPPINGS LOOK LIKE

Rat droppings

Coffee beans compared to Rat droppings

Mouse droppings compared to Rat droppings

DETECTING AN INFESTATION

Detecting what and where your pest coming is from is key to any pest prevention.

If you are coming downstairs every morning to a fresh batch of droppings in the kitchen but have no idea where they come from, it could be a long while before you get rid of them. Identification is important, what to look for and to react quickly will greatly benefit you in the long term.

 

 

Droppings

Droppings are a very good indication that you have an infestation. Mice droppings are rice like in shape and size and black in colour.

Gaps to property

External entry points can be sealed with a wire mesh

Around radiators

 

Smear marks

Smear marks is another good indication, look around the hole or gap for oily smear marks around it, these are made from under the underbelly as it goes in and out of the entry point

KNOW YOUR OPTIONS

Do It Yourself

Let us not play around, doing it yourself is not always easy. But it can be cost-effective even if you end up hiring someone else to complete the job.

If you are coming downstairs every morning to a fresh batch of droppings in the kitchen but have no idea where they come from, it could be a long while before you get rid of them. Identification is important, what to look for and to react quickly will greatly benefit you in the long term.

 

Pest Control Company

In truth, most pest companies give a good image of themselves and do a good job. Like any industry, you will get your good companies and not so good. Like any trade, we would suggest someone who comes recommended. Failing that, you can search through our directory to find a registered pest control company. These will be licenced pest controllers that go by a standard of guidelines. You can find their address here and much more at our website: http://baitpoint.co.uk

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