ALERT: Big rise in and mouse activity recorded across Ireland in early months 2025

There has been a sharp increase in rat and mouse activity nationwide during the first quarter of 2025 compared to the same period in 2024.

Pest control provider Rentokil recorded a 45% increase in rat-related activity and a 39% rise in mouse-related activity nationally in Q1 (January-March) 2025 vs Q1 2024. Regional data shows significant variations across the country.

Cork experienced the most substantial rise, with a 107% increase in rat activity and a 93% increase in mouse activity. In the Limerick region, rat activity rose by 16%, while mouse activity was up 47%.

The Border, Midlands, West, and North West region, which includes the counties of Offaly, Westmeath, Cavan, Donegal, Leitrim, Monaghan, Mayo, Roscommon, and Sligo, saw a 12% increase in rat activity and a 43% increase in mouse activity.

To help tackle the surge in mouse activity, Rentokil has introduced RADAR X, its latest innovation in mouse control, providing long-lasting, uninterrupted protection. This bait-free, internal solution has dual chambers to offer double trapping power and continuous protection. The unit uses a CO₂ despatch system to humanely and rapidly eliminate mice and is IP65-rated, meaning it's protected against dust and water jets. It also features HACCP-approved chambers that reduce contamination risk, making it a strong fit for sensitive environments.

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Colm Moore, Regional Technical Manager for Rentokil, said, "The significant increases we're seeing in both rat and mouse activity highlight the need for vigilance. We're urging home and business owners to act early by identifying the signs of pest presence and securing their properties. Rentokil now offers RADAR X, a bait-free, dual-chambered solution for internal mouse control. It's an effective and discreet option for maintaining site protection and hygiene. For information on RADAR X, Flexi Armour, or other pest prevention options, visit the Rentokil website."

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Rats remain the most common pest issue affecting Irish properties. They can cause serious structural damage by chewing through utility lines, electrical wiring, and insulation. Mice, while smaller, pose similar risks and can often go unnoticed until infestations are well-established.

Common signs of rat or mouse activity include droppings, scratching noises in walls or ceilings, footprints, and gnaw marks. Businesses, in particular, should be alert to the reputational damage and health risks associated with infestations, including the spread of disease through contact with rodent droppings or urine.