The National Agency for Food, Environmental and Work Health Safety (ANSES) has launched a portal dedicated to the report of the Tigre mosquito, accessible to the following address https://signally-moustique.anses.fr/Signalement_albopictus/. Field surveys can then be carried out. This portal aims in priority to collect the reports from unpaid communes, in order to follow the progress of the colonization of the Tiger mosquito.
“It is not the lights that attract mosquitoes”
ANSES recommends several protective measures: Wearing loose and covering clothes, using mosquito nets impregnated with repellents for doors and windows, and apply antimoustic repellents to your skin. “Contrary to popular belief, it is not the lights that attract mosquitoes, but the carbon dioxide that we expire”, underlines the ANSES website.
The tiger mosquito is particularly active early in the morning (from 7 a.m. to 8 a.m.) and at the end of the day (from 6 p.m. to 8 p.m.).
Read also: Where has the tiger mosquito set up, in Pays de la Loire?
According to the Regional Health Agency, August 7, 2025, fifteen municipalities in Maine-et-Loire are affected by the Tiger mosquito. Trelazé since 2017; Chacé (commune of Bellevigne-les-Châteaux) since 2018; Garennes-sur-Loire since 2020; as well as other municipalities like Angers, Avrillé, Mûrs-Erigné, Saint-Melaine-sur-Aubance, Saumur, the Séguinière have been affected since 2023; and others like Brissac-Loire-Aubance, Soulaines-sur-Aubance, Cholet, Longuenée-en-Anjou since 2024; Without forgetting the last two Saint-Barthélemy-d’Anjou and Les Ponts-de-Cé since 2025.
It is the female that stings
The tiger mosquito, which measures the size of a year of a euro, is recognizable by its black body striking white. He lives mainly outside and is often near watering cans, water cups and rainwater recovery. This mosquito can transmit viruses such as dengue, chikungunya or zika. It is the female who stings and can lay several hundred eggs during each laying, renewing this operation several times during her life. His life expectancy is 21 days.
ARS advises “To empty the small water reserves at least once a week, to hermetically cover rainwater recuperators, cans and small pools, and to ensure good water flow at the terraces, quailbotis, gutters, cheneaux, gutters, bulls and exterior siphons”.
At the national level, the region of the Pays de la Loire is considered to be “weakly colonized”, because less than 40 % of the municipalities are affected.
