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Cockroaches: where and what to observe

Species identification matters because habits, harbourage and control methods differ.

Female German cockroach carrying an egg case
Female German cockroach with an egg case — reference image.Source: CDC, Wikimedia Commons — public domain ↗

Cockroaches

Possible signs

Observed cockroaches, droppings, egg cases or activity near sources of heat, water and food may warrant an evaluation.

Cockroaches

Areas to observe

Under appliances, around plumbing, in food cupboards, in cracks and in warm or humid spaces.

Cockroaches

Prudent first measures

Store food in closed containers, clean residue, correct leaks when possible and reduce clutter.

Cockroaches

What the evaluation examines

The species, harbourage, sources of water and food, travel routes and the apparent extent of activity.

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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