Invasive mosquitoes - IM
A key strength of the Vector ecology sector is the creation and management of the surveillance and control system for the tiger mosquito (Aedes albopictus) in the Canton of Ticino, one of the first in Europe. The tiger mosquito is a highly effective invasive species that raises significant concerns not only due to the nuisance it causes but also because of the potential risk of transmitting several pathogens of exotic diseases such as dengue and chikungunya. This species has no natural competitors in Europe and lives in close contact with humans. While it is basically
impossible to contain its spread, which is facilitated by vehicles, local density can be controlled through an integrated system. The current system is also capable of managing other invasive species such as Ae. japonicus and Ae. koreicus, which, however, do not pose significant concerns in terms of nuisance or health risks. It can also detect the arrival of Ae. aegypti, a species feared in tropical countries for its efficient ability to transmit diseases to humans.
impossible to contain its spread, which is facilitated by vehicles, local density can be controlled through an integrated system. The current system is also capable of managing other invasive species such as Ae. japonicus and Ae. koreicus, which, however, do not pose significant concerns in terms of nuisance or health risks. It can also detect the arrival of Ae. aegypti, a species feared in tropical countries for its efficient ability to transmit diseases to humans.
We manage the integrated surveillance and control activities for the tiger mosquito in Canton Ticino in close collaboration with the municipalities and regional civil protection. We also coordinate the public information campaign for citizens (La zanzara tigre).
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The Swiss Mosquito Network, supported by the Federal Office for the Environment (FOEN), aims to monitor the entry points of the tiger mosquito into Switzerland, using citizen reports and national territory monitoring. The Network also provides scientific and political support to cantons wishing to establish their own surveillance and control systems. Partners of the Network include SUPSI, Swiss TPH, University of Lausanne, and the City of Zurich.
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In addition to the support provided by the Swiss Mosquito Network, many cantons rely on direct assistance from the Vector Ecology sector for the analysis of mosquito samples (ovitraps, larval collections, adult traps).
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In collaboration with the Cantonal Medical Office, we assess the risk of disease transmission in the event of an importation. If necessary, targeted treatments are carried out in the affected area under the mandate of the Office, in collaboration with the municipality.
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Invasive mosquito, Aedes albopictus, (photo © R. Eritja)