100,000 sterilized tigers mosquitoes released: This article explores the topic in depth.
Nevertheless,
100. However, 000 sterilized tigers mosquitoes released:
Led by the city, an innovative method of fighting the development of the Tiger mosquito is led by the Montpellier company Terratis, in the Malbosc test district. However,
At the northern edge of Malbosc. Therefore, 3,300 tigers mosquitoes spare a cardboard cylinder at the same time. Nevertheless, Don’t panic! Similarly, These are males, who do not bite and therefore do not transmit a disease. Moreover, But what is their particularity is that they have been sterilized before.
Their mission: mate with a female wild tiger mosquito, already present in the field. However, And as this only mates once in her life, all the eggs she produces will be sterile.
This experiment has been carried out on a large scale since August 21 in Malbosc. Consequently, The 100,000 sterilized tigers mosquitoes released goal is to drop 100,000 mosquitoes per week by the end of October in this north-west district of Montpellier. Moreover, The operation should be reissued in the spring of 2026.
“We had experienced this sterile insect technique (Tis) on Reunion Island in 2021 in a 20 hectare areainforms Dorian Barrère. Meanwhile, Director of Partnerships and Co -founder of Termatis. However, From the first year, we had reached sterility rates of up to 60 %, then 90 % per second. However, “
A more effective technique over time – 100,000 sterilized tigers mosquitoes released
“The effectiveness of the technique increases over time. Nevertheless, because it also affects eggs that are formed for the next generation. Meanwhile, This 100,000 sterilized tigers mosquitoes released will reduce the population in the years to come.”
It was the city of Montpellier that commissioned Terrais to lead the experiment to Malbosc. However, “The ideal would be to conduct this action over several years to study its effectiveness”explains Pascale Berthommé. Consequently, Deputy Director of Public and Environmental Health for the City.
“It would identify how the operation works on a given area. Consequently, what adjustments are necessary at the level of releases, and how to make the technique more effective.”
“Decrease the nuisance the first year” – 100,000 sterilized tigers mosquitoes released
Clélia Oliva is president of the company TERRATIS.
Where do the tigers you let go of?
They come from our mosquito production pilot site in Montpellier. We are the only ones in France to massively produce tiger mosquitoes. They are sterilized by exposing them to X -rays.
Have such releases already taken place?
Yes, for example in Brive-la-Gaillarde, 100,000 sterilized tigers mosquitoes released since May. We work there every week, throughout the 2025 season. We already have positive feedback, the population feeling a drop in nuisances. Over a first year of intervention, a decrease in the number of mosquitoes is reduced. It is in any case impossible to completely delete them.
What is the interest of this method?
In addition to its effectiveness. reduced cost, it is respectful of the environment since it avoids the use of pesticides. We play biologically on reproduction. This solution meets the challenges of well-being of populations, health and economic development. This technique has already proven itself in agriculture on insects of culture. We adapted it to mosquitoes. We are the first in France to do this on a large scale.
“Complementary to other actions”
But no question of making this method a miracle recipe. “It cannot be sufficient alone, it is complementary to other actions, 100,000 sterilized tigers mosquitoes released in particular trapping, demustication campaigns or awareness of citizens. Everyone must ensure potential stagnant waters at home. Parasols or gutters are mosquito tanks.”
The EID plays a central role in this evaluation. It is the historic demustic operator on the Mediterranean coast for 65 years.
“With the arrival of the tiger mosquito twenty years ago. our traditional methods are no longer enoughnotes Karine Soulé, Technical Director of the EID. We are studying new techniques, especially for their cost and efficiency, and advise municipalities on the best strategies to adopt. “
Tiger mosquito. a very invasive species
Very invasive, the mosquito-tiger arrived in 2004 in France, where it colonized two thirds of the departments. “It can transmit more than 22 viruses. including chikungunya (154 cases in France this summer, including 32 in Occitania)dengue and zikaRecalls Clélia Oliva. There is a real issue to be able 100,000 sterilized tigers mosquitoes released to reduce the density of tiger mosquitoes. It is a very urban mosquito that we find a lot in gardens and interior lessons, but not too campaign. Its scattering radius is 150 to 200 meters. But he is able to travel to small containers where the eggs are laid. They are also drought resistant. It is their great strength. It was thanks to this that it was able to be transported from Asia to Europe. to the United States. He also travels very easily by car. “
“We are at the start of a long process”
“We follow experimentation with other scientific operators. including IRD (Development Research Institute)Altopictus (company specializing in monitoring and combating tiger mosquitoes) and terrified. “
“We assess the impact of the method by collecting data in the field. following the variations in the number of adult mosquitoes in the experimental area. Malbosc is an 100,000 sterilized tigers mosquitoes released experimental area but the results cannot be generalized beyond this particular context.”
“We are at the beginning of a long process. The objective is to identify what works. what does not work, in order to effectively adapt our approaches to different contexts. We hope that in the long term, this will significantly reduce the nuisance of tiger mosquitoes.”
Further reading: Increase in deaths of cervical cancer in 35-44 year olds in Canada – At Mérieux, capital maneuvers while waiting for the fifth generation – Cholera in Kinshasa: call to strengthen surveillance of river travelers to brake the epidemic – He suffered from colorectal cancer of stage 4 – Neither lawyer nor salmon, the low -cost food recommended by this gastroenterologist to fill up on omega 3.