Pest control professionals in Catalonia have raised concerns over a sharp increase in rodent and cockroach infestations across the Tarragona region this year. The surge, which marks the fourth consecutive year of rising pest activity, is being directly attributed to the warmer and wetter weather conditions experienced throughout 2025.
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The Association of Disinfection and Pest Control Professionals of Catalonia (ADEPAP) released data indicating that the climate has created an ideal environment for pests to thrive. The association noted in a statement first reported by Diari Catalunya:
“The year 2025 has been warm throughout the territory and rainy in most of the comarques, a fact that favours the proliferation of insects in general.”
A Confluence of Climate Factors
The historic port city of Tarragona, like much of Catalonia, has experienced a climate shift that is proving beneficial for common urban pests. Increased rainfall provides the damp environments that cockroaches, a type of beetle, need to reproduce, while warmer temperatures accelerate their life cycles. Similarly, these conditions allow rodent populations to flourish with more abundant food sources and less environmental stress.
This trend is not isolated, reflecting a growing concern across the region. Previous reports have highlighted how climate change is bringing summer pest problems earlier each year. The sustained warmth extends breeding seasons, leading to larger and more resilient populations that are harder to control.
The Data Behind the Surge
According to ADEPAP’s study, the figures for 2025 are stark. Professionals have recorded a staggering 81.5% increase in cockroach control interventions compared to the same period in 2024. Rodent surveillance and control services also saw a similar percentage rise.
While the focus of the warning was on Tarragona, the association confirmed that the issue is widespread across Catalonia’s major urban centres. Cities such as Barcelona, Girona, and their respective metropolitan areas are all grappling with a significant uptick in demand for pest control services.
Public Health and Municipal Response
The proliferation of these pests is more than a nuisance; it poses a tangible risk to public health. Rodents and cockroaches are known carriers of various pathogens and can contaminate food, trigger allergies, and spread disease. The responsibility for managing these risks in public areas falls to local and regional authorities.
The Generalitat de Catalunya’s Department of Health oversees public health protocols, while the Tarragona City Council is responsible for sanitary control in green spaces and public infrastructure. However, the scale of the problem can overwhelm municipal resources, as seen in other local situations. An abandoned warehouse in Badalona recently highlighted the public health challenges posed by unmanaged sites, causing pest and damp issues for a neighbouring school.
With climate trends pointing towards continued warmer and more unpredictable weather patterns, experts suggest that both public authorities and private citizens will need to adopt more proactive and integrated pest management strategies. This includes sealing entry points in buildings, managing waste effectively, and seeking professional help at the first sign of an infestation.
