About Norway Rat
📖Biology and behaviour
The Norway rat, also called the brown rat, is a heavy, burrowing rat that lives near the ground. It is thick-bodied with a blunt snout and a tail shorter than its body. In India it is common around drains, sewers, markets, godowns, ports, food waste and the ground floors of buildings.
It digs burrows along foundations, under slabs, along drains and in embankments, and it can gnaw through wood, plastic, lead pipe and even soft concrete. Rats contaminate food with urine and droppings and can spread diseases such as leptospirosis. Gnawed electrical wiring is a real fire risk.
⚡Quick facts
- Size
- Body about 18–25 cm, heavier build
- Tail
- Shorter than the body
- Nests
- Burrows, drains, ground level
- Risk
- Contamination, leptospirosis, gnawed wires
Signs of Norway Rat
What to look for, and how to prevent it🔎How to spot an infestation
- Burrow holes along walls, foundations, drains and embankments
- Greasy rub marks along walls and pipes where rats run
- Droppings the size of a grain of rice or a little bigger, mostly along runways
- Gnaw marks on wood, bags, wires and pipes
- Scratching or scurrying noises at night and a sharp ammonia smell
- Torn grain bags and food packages
🛡️How to prevent it
- Store food and grain in rodent-proof containers and off the floor
- Cover bins and clear waste daily
- Seal gaps around pipes and doors, and fit door sweeps; rats can pass through a hole a little bigger than a coin
- Repair drain covers and broken gratings
- Keep vegetation and rubbish away from the building
- Use tamper-resistant bait stations only where a PCO advises
How Norway Rat is controlled
Integrated approach🧪Control methods
An effective programme combines exclusion (sealing entry points — as small as 6–10mm for mice), sanitation (removing food and harbourage), and a monitored bait-station or trapping programme placed and serviced by a licensed PCO; bait alone, without exclusion and sanitation, rarely solves a persistent infestation.
👷When to call a professional
Rodent control needs inspection, proofing and the right baiting plan. Baits must be placed in tamper-resistant stations to protect children, pets and non-target animals, and dead rodents must be collected. A PCO also helps identify the entry points you have not seen.
Products bharatpest stocks
Genuine stock, shipped across IndiaUse the dosage calculator on each product page to work out the quantity for your job.
Where you will find it
43 sectorsShow 29 more sectors
Common questions about Norway Rat
How do I know if it is a rat or a mouse?
Rat droppings are larger, like a grain of rice or bigger, and burrows and gnawing are more obvious. Mouse droppings are small and pointed, about the size of a grain of sesame or a little more.
Why do rats keep returning after I put poison down?
Food, water and shelter are still available and new rats move in. Proofing and sanitation are as important as baiting.
Are rodent baits safe at home?
They must only be used as directed, inside locked, tamper-resistant stations, away from children and pets. Ask a PCO to place them where needed.
Can rats damage electrical wiring?
Yes. They gnaw constantly to keep their teeth short and often chew cables, which can cause short circuits and fires.
Does bharatpest stock products for Norway Rat?
Yes — see the Products section above for genuine, currently stocked options.
Other rodents
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