Tiger mosquito: let’s report it!
The tiger mosquito (Aedes albopictus) is spreading across the canton of Vaud. Although still uncommon here, if it takes hold it could bring health risks such as dengue, Zika and chikungunya.
The tiger mosquito is spreading across the canton of Vaud: let’s remove standing water and report any sightings at moustiques-suisse.ch
Why act now?
- Warm weather and human activity help it settle in.
- It is already established in 7 municipalities and gaining a foothold in 5 more.
- Public sightings make it possible to track where it turns up across the canton.
What can you do?
- Get rid of standing water: saucers, tyres, watering cans, gutters…
- Report anything suspicious at www.moustiques-suisse.ch.
Home treatment from 2025
Under certain conditions, treatment at home will be allowed between July and October, using a biological product (Vectobac) supplied by the municipalities. Conventional insecticides are strongly discouraged, as they are harmful to the environment.
Key figures (2024)
- 80 traps set up in at-risk areas
- 239 reports received, 76 of them confirmed
- A stepped-up prevention campaign in 2025
Source: FAO, Canton de Vaud – no. 44 / 03.06.2025