What is a key sign of a rat infestation in a property?

The presence of droppings is a key sign of a rat infestation because rat droppings are typically dark, cylindrical, and can be found in areas where rats travel, such as along walls, in cupboards, or near food sources. The quantity and size of the droppings can give insight into the size of the infestation and how long they might have been in the area. Observing droppings helps pest management professionals determine the level of activity in the space and aids in the identification of the type of rodent present.

While piles of dirt and holes in walls can indicate various types of pest activity, they are not specific to rat infestations. Strong odors may suggest the presence of rodents, but they are not as definitive as the droppings. Thus, droppings provide concrete evidence of rat presence and are an essential factor in diagnosing a rat problem effectively.