Smaller than a penny, black and white in color with stripes, the tiger mosquito has become a major concern in Toulouse and throughout the Occitanie region. With dengue cases on the rise, health agencies are stepping up their efforts to counter the threat. Should we be concerned about its arrival, and what preventive measures can we take to protect ourselves?
A closely monitored proliferation in Haute-Garonne
Originally found in the tropical and subtropical forests of Asia, the tiger mosquito, like the Asian hornet, has settled in Europe as a result of human activity. This disease vector, which can transmit dengue fever, chikungunya and zika, has now reached our beautiful region. Since the start of 2024, cases of dengue fever have quadrupled in Occitanie, with 15 cases reported in Haute-Garonne. In Toulouse, insecticide treatments have even been applied in specific areas, such as the Terre-Cabade cemetery, to limit its spread.
The presence of the tiger mosquito in Toulouse was first detected in 2012, and since then its population has continued to grow. This proliferation is of particular concern because the tiger mosquito is active from May to November, when it can transmit viruses imported by travelers returning from endemic areas. What’s more, mass mosquito control campaigns are not the most effective, as the species adapts and becomes resistant.
Tiger mosquito: action and prevention in Toulouse and the surrounding region
Since this species likes to lay its eggs in stagnant water, it’s crucial to eliminate these watering holes around your home. Be sure to empty the saucers under your flower pots frequently. Clean gutters to prevent water accumulation. Cover water tanks and pools when not in use.
To protect yourself, we recommend the use of skin repellents. DEET-based products are particularly effective. In addition, installing mosquito nets on windows and doors can prevent mosquitoes from entering homes. Tiger mosquitoes also seem to hate the wind caused by fans, so keep them turned on. Finally, insecticides work, but their use must remain limited.
Repellent plants
Some plants have natural repellent properties against mosquitoes, although they are generally less effective against this species. A well-known ally, lemongrass keeps these little vampires at bay. The same is true of lavender, which not only perfumes the inside of your home, but is equally at home in your garden and outdoors. Lemon balm, sometimes reminiscent of wild mint, is also a natural repellent. It’s a species that grows easily in all types of soil (sometimes a little too easily). Last but not least, basil isn’t just for cooking: it’s also an excellent natural insect repellent. Opt for the lemon basil variety if you want optimum effectiveness.
Outdoor protection
If you want to enjoy your terrace or go for a walk, opt for loose-fitting, light-colored clothes with long sleeves. If baby is coming with you, add a mosquito net to the stroller, but above all, don’t spray it with insecticide.
Raising awareness and signposting against the tiger mosquito in Toulouse and France
The health authorities, in collaboration with specialist companies, run awareness and treatment campaigns in infested areas. Informative posters and insecticide spraying are regularly carried out to control the tiger mosquito population. The presence of tiger mosquitoes must be reported reported.