Rodents multiply fast, and can be hard to catch because of their ability to slip in and out of tight cracks. They commonly infest places with exposed rubbish or food, and can become quite a nuisance as they can nibble through packaging. Rodents can also carry diseases and bacteria. Signs of a rodent infestation include seeing rodents, hearing scuttling in the walls and finding rodent droppings.
Roof Rat (Rattus rattus)
Size – Can grow up to 10 to 12 inches long. (Tail is often longer than the head and body)
Colour – Can vary from brown to black
Roof rats are born in a nest range from 6 to 8 at one time and given the right condition, the female can produce up to 40 new rats a year. In normal circumstances, diseases and predators keep their population lower than their maximum birth rate.
Roof rats are very agile and often climb to gain entry. They tend to stick to familiar grounds as they are not explorers and rarely venture more than hundred feet from that area. They rarely die naturally and if they do you probably can find them in your attics and there will be foul smell.
Brown Rat or Norway Rat (Rattus Norvegicus)
Size – Can grow up to 16 inches long (Tail is often shorter than head and body)
Colour – Brown
Female Brown Rats can produce up to 5 litters per year and each litter is about 6 to 8 young. Their maximum life span is 3 years but most manage only 1 year due to predator and other factors.
Brown Rats/Norway Rats are often found in sewers in Singapore. They only require a size of a dollar coin in order to gain entry to your area due to their flexibility of their bone structures.
House Mouse (Mus Domesticus)
Size – About 3 to 4 inches in size (Tail is about the same in length)
Colour – Grey in colour or darker
Female house mouse can produce up to 6 to 8 litters per year ranging from 3 to 16 youngs per litter.
Mice are good jumpers, climbers and swimmers and most active during the night. House mice prefer food that is cereals but are also omnivorous. Mice can fit through cracks or openings about a quarter of an inch and will make their nest in homes that are stacked with debris or unwanted belongings.