Knowledge centre

Rodents: recognizing the signs

Signs of activity can guide an evaluation, but no single sign always identifies the species or the extent of the problem.

House mouse viewed from the side
House mouse — reference image for general recognition.Source: Ahunt, Wikimedia Commons — CC0 ↗

Rodents

Possible signs

Droppings, gnaw marks, noises in walls, travel marks or damaged packaging may indicate activity.

Rodents

Why identification matters

The size and location of signs and the building layout help distinguish possible scenarios and select appropriate measures.

Rodents

Prudent first measures

Reduce access to food and water, keep waste closed and avoid moving bait or devices without instructions. Do not handle droppings, carcasses or contaminated materials with bare hands.

Rodents

What the evaluation examines

Access points, food and water sources, shelter areas, travel routes and signs of activity throughout the building.

This content is provided for general information. The signs described may have several causes and do not replace identification or an on-site evaluation. Use a pesticide only in accordance with its label and applicable rules.

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