Rodent, Rats | Singapore Pest Control | Innovative Pest Management

Rodent, Rat and Mices

Rodents are warm-blooded mammals that, like humans, can be found throughout the world. They have oversized front teeth for gnawing and check teeth, which are adapted for chewing. Rodents chew on a variety of items available to them and cause great damage in and around homes.

Rodent tend to be rapid breeders. Some species breed year-round, and populations are maintained through constant reproduction. Because of the rodents’ body plan, they are capable of squeezing through spaces that appear to be much too small for them. All such holes should be sealed to prevent entry and reentry of rodents. A pest control professional should be contacted for assistance.

Type of rodents found in Singapore

  • Roof rat
  • Norway rat
  • House mice

Roof Rat

Roof rat are the most challenging type of rodent to get rid of. The reason being is that they like to harbour above ground that can be hard to access.
They are also nocturnal and is one of the most agile among the rodent family. Unlike Norway rat, which find burrows underground to harbour,
roof rat is known to harbour on location such as ceiling, attics and false wall. They are excellent climber. Anywhere above ground will represent an ideal location for them to harbour. Water present is needed as well or accessibility to any water source.

Appearance and Diet

Roof rat are smaller in size. Their tail is longer than their body.They are black in colour and have a pointy face.
They prefer nuts and fruits but ultimately roof rats are omnivorous. They will eat anything if they hungry and tends to stash food at their harbouring area.


Roof rat reach sexual maturity within 2-3 months and about 3 weeks of gestation period. They can have about 3-4 litters in a year consisting of 4-8 young.

Norway Rat

Norway rat are also known as sewer rat or brown rat. Unlike roof rat, norway rat live on the lower ground. They can live in burrows, drains, sewerage & even field. They don’t normally harbour in your homes but will always find a way in to look for food before going back to their burrows.



Appearance and Diet

Norway rat are greyish-brown in colour with a lighter colour on their underpart of their body. Their tails is shorter than their body size.
Their diet consist of anything. They will eat cereal, meat and basically anything to survive on.


Norway rat reach sexual maturity within 2-3 months. They can have about 4-7 litters per year with each litter consisting of 8-12 young.
And their gestation will only take them about 3 weeks.

House Mice

House mice, also known as house mouse,  can live near human habitat. They look for small opening within any property to start harbouring. All they need is an opening the size of a 50 cent coin to enter. House mouse by nature are very curious. They can spend the whole day roaming around a property to get themselves familiarize with the surrounding. And of course, they are attracted at the smell of food.

Appearance and Diet

House mice are smaller compare to a Roof Rat and Norway Rat. You could mistook them for a young roof rat as they look very similar. They are grey in colour and can grow up to 10 cm in length. They prefer seed, nut and cereal grains but will eat anything if they don’t have much choice.


It will take a house mice just one month to reach sexual maturity. They can have anywhere between 6-10 litters per year with each litter consisting of 5-7 young. Their gestation period is normally about 20 days.

Signs of rodent infestation


You can tell what type of rodent is infesting your home by looking at the dropping size. Obviously, the bigger the rodent, the bigger the dropping size is. The house mice’s dropping are the smallest amongthe three just like their body size compare to the others.

Food product being chew on

Rodents are bait shy. For example, they do not eat whole loaf of bread. Instead, they will start chewing the packaging, taking small bites each time. You will notice that there will be many bite marks or chewing signs on the food packaging over time.

Nesting material 

Rodent are breed all year round. They will need to find a nesting area for them to reproductive. It is common for them start shredding nesting material for their nest. Material such as paper, card board and even cushion sponge. You should be very alarm when this happen. 

Smear mark and foot print

Apart from carrying harmful diseases, rodent’s foot print and body are normally very dirty that they can leave a marking when they rubbed themselves against the wall or trying to squeeze themselves in through any opening.