Of drops massive mosquito-tigers waste have been tested in Brazil for the control of these insects, which are vectors of several diseases such as dengue, chikungunya, or Zika. Trials will also be conducted in France, where the invasion of the mosquito, in recent years, fears of the emergence of new epidemics.
<p class="canvas-atom-canvas-text-Mb(1.0 em) Mb(0)–sm Mt(0.8 em)–sm" type="text" content="VECTOR. A few tens of meters above a brazilian village, the drone begins its drop. Mosquitoes-male tigers (Aedes aegypti) by thousands as they fly in the air and spread around… What could pass for a biological attack of a new kind is in fact a scientific experiment conducted in 2018 and which has just been published in in the journal Science Robotics. Objective : to reduce mosquito populations, in which the females are carriers of illness such as dengue, chikungunya or Zika.” data-reactid=”24″>VECTOR. A few tens of meters above a brazilian village, the drone begins its drop. Mosquitoes-male tigers (Aedes aegypti) by thousands as they fly in the air and spread around… What could pass for a biological attack of a new kind is in fact a scientific experiment conducted in 2018 and which has just been published in in the journal Science Robotics. Objective : to reduce mosquito populations, in which the females are carriers of illness such as dengue, chikungunya or Zika.
<p class="canvas-atom-canvas-text-Mb(1.0 em) Mb(0)–sm Mt(0.8 em)–sm" type="text" content="This operation, which has never been, has been directed by Jérémy Bouyer, researcher at the international Agency of energy atomic (IAEA) in Austria in collaboration with several foreign teams and the Cirad of Montpellier. It was held in Carnaíba do Sertão, a small village in the north of the State of Bahia. The researchers used the technique called the sterile insect technique. The principle is simple : “It is to let go of in the nature of the male from a breeding and that have been sterilized by exposure to x-rays At the time of reproduction, they compete with wild males. But the females that will be mated with the individuals sterile will produce only eggs non-viable”, explains Jérémy Bouyer. Thus, the more there will be of the sterile males, the less there will be of viable eggs, which will lead to the collapse of the mosquito population and therefore to a blockage in the chain of transmission of the diseases carried by the insect. “But for this to be effective, it is necessary to spread approximately ten sterile males for a male wild” says Jérémy Bouyer.” data-reactid=”25″>This operation, which has never been, has been directed by Jérémy Bouyer, researcher at the international Agency of energy atomic (IAEA) in Austria in collaboration with several foreign teams and the Cirad of Montpellier. It was held in Carnaíba do Sertão, a small village in the north of the State of Bahia. The researchers used the technique called the sterile insect technique. The principle is simple : “It is to let go of in the nature of the male from a breeding and that have been sterilized by exposure to x-rays At the time of reproduction, they compete with wild males. But the females that will be mated with the individuals sterile will produce only eggs non-viable”, explains Jérémy Bouyer. Thus, the more there will be of the sterile males, the less there will be of viable eggs, which will lead to the collapse of the mosquito population and therefore to a blockage in the chain of transmission of the diseases carried by the insect. “But for this to be effective, it is necessary to spread approximately ten sterile males for a male wild” says Jérémy Bouyer.
50 000 insects crammed into a tank, cooled to 10 °C
Another constraint : it is necessary to cover surfaces often extensive. This is where the drone becomes particularly interesting. Until now, these releases were from the ground, which limited the dispersion of insects and required significant human resources. The drone allows, literally, sprinkling the area g[…]
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