Species category: Rodent
Scientific Name: Rattus rattus
Adults are typically 180-230mm with a longer tail length of 180-240mm. They weigh 120-300g. Droppings are useful for identification; theirs are 12mm long and formed to a point.
Despite its name, the Black Rat is usually black to light brown in colour with a lighter underside.
Roof Rats have incisors that grow at a rate of 4 inches per year. Rats control their incisor teeth by continuously chewing on inedible materials which can result in extensive damage. They will chew on anything that comes in their path causing considerable destruction.
They also urinate and produce droppings frequently; contaminating everything they come into contact with. Black rats live longer than the Norway rat.
Roof Rats originated from India and Eastern Africa. The Roof Rat can know be found worldwide.
They are often found indoors. They are good climbers.
Carriers of over 45 types of diseases, Roof Rats contaminate water, food and the environment. Rats cause direct food losses to field crops and stored food and food production chains, as well as indirect food losses, such as packaging destruction and contamination with faeces.