The Brown Rat (Rattus Norvegicus) is a common pest and once established within or around a site, can quickly grow into a significant infestation if conditions are favourable and left untreated.

Rats become sexually mature within at around 5-6 weeks and are capable of breeding monthly depending upon weather and availability of food. Litters average 7-8 pups with an average lifespan of around 15 months.

Easily distinguished from mice, rats are typically larger in size and their tails are much thicker. Nesting areas quite often have a distinctive musty smell.

Signs of activity include chewings, rat runs, oily residues and burrows.