The Norway Rat is very widespread and is possibly the most economically detrimental pest rodent in Australia. It infests warehouses, factories, flour mills, poultry farms, garbage dumps, shops, supermarkets, domestic premises, grain storage facilities, sewers and many other locations that offer shelter and food.
They may enter buildings just for food, reside in buildings during the colder winter months, or live in buildings all year round. Nests in buildings are mostly located in wall voids, roof voids and other parts of the construction that offer secretive, undisturbed areas for shelter and access to food and water. When not taking up residence in buildings these rats live mostly in burrows, that tunnel into the banks of streams, under buildings, or heaped rubbish. Burrows commonly have ’bolt holes’ hidden under debris or grass to facilitate fast emergency exits.
Fully grown adults have coarse red-brown fur, weigh approximately 450 grams they are proficient swimmers and generally live within a 40-50 metre range. They typically display omnivorous feeding habits consuming on average 20-30 grams of food and 20-30 mls of water a day, they are known to eat human or animal foods and feedstocks. They do need regular access to liquid water; so in conditions where their food is low in moisture and available water is minimal, liquid bait preparations may be effective.
Norway rats are very much creatures of habit, and once they have explored a new environment, they establish quite rigid travel routes. Being neophobic, they may take some days to adjust to new objects such as baits stations and traps.
In cases where the territory of norway rats overlaps with that of other rodent species, it is entirely likely that the norway rat will become the dominant species, often driving others outside the area.
In order to put to an end your rodent infestion you will need to have a professional visit your home and carry out a thourough treatment. Here is our 5 top tips for preparing for a rodent treatment in order to ensure the best results.