Swiss Mosquito Network

Information on invasive mosquitoes in Switzerland and suggestions to prevent spread.

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News

First detection of dengue virus in tiger mosquitoes. Canton of Basel-Stadt

17/03/2026

The Cantonal Laboratory of Basel-Stadt continued its surveillance and control of the Asian tiger mosquito in 2025. Once again, it relied on cooperation with other cantonal offices, the municipalities of Riehen and Bettingen, and the Swiss Tropical and Public Health Institute. Private households, leisure gardening associations and businesses are encouraged to continue contributing to control… Read more »

The battle continues: Sterile males still in the field against the tiger mosquito

26/07/2025

A new phase of testing is underway in the municipalities of Ascona and Losone. Following the encouraging results obtained in Morcote, the Vector Ecology division of SUPSI’s Institute of Microbiology is preparing to continue testing the sterile male technique. The aim is to verify the effectiveness of the method also in non-isolated urban and tourist… Read more »

Tiger mosquito in Zurich: how to fight it effectively

24/07/2025

The tiger mosquito is continuously spreading across Europe, including Switzerland. The most affected areas are those with constant introductions, such as historically the canton of Ticino from neighboring Italy. Now, Geneva and the city of Basel are also continuously exchanging tiger mosquitoes with bordering regions. In these areas, people must now live with the presence… Read more »