Genetically modified mosquito larvae will be released in the US. Oxitec has previously released the aegypti Aedes mosquito in Brazil, the Cayman Islands, Panama and Malaysia, and the company has reported that the local strain of A. aegypti has reduced by at least 90%. A. aegypti can carry diseases such as Zika, dengue, chikungunya and yellow fever, and the release of genetically modified mosquitoes is one way to control this population without the use of insecticides. Oxitec’s genetically engineered mosquitoes are male, engineered to carry lethal genes; When genetically modified pests mate with wild female mosquitoes, the lethal gene is passed on to their offspring. Although the gene does not affect the survival of males, it prevents females from building an essential protein and thus causes them to die before adulthood. Only female mosquitoes bite humans (male mosquitoes only drink nectar), so denatured mosquitoes and their surviving males cannot transmit disease to humans. A. aegypti mosquitoes make up about 4% of all mosquitoes in the Florida Keys but cause the majority of mosquito-borne diseases in the area. The region typically spends $1 million a year on mosquito control, resorting to costly measures such as aerial spraying. Release of hundreds of millions of genetically modified mosquitoes could be a less expensive and more effective option, especially as mosquito populations become resistant to pesticides over time. Oxitec was approached by the local government in 2010, and after a decade of regulatory review and local feedback, both the board and the U.S. Environmental Protection Agency finally approved the plan. Release of genetically modified mosquitoes in the Keys. At the end of April, the company placed boxes of mosquito eggs at six locations in Cudjoe Key, Ramrod Key and Vaca Key, according to Nature. Over the next 12 weeks, about 12,000 newly hatched male mosquitoes will emerge from the box. This will be an initial test so Oxitec can collect data before conducting a second test with nearly 20 million mosquitoes later this year. The company will capture mosquitoes during the test to see how far the insects travel from their boxes, how long they live, and whether female mosquitoes actually pick up the lethal gene and die. To make it easier to track genetically engineered mosquitoes, Oxitec introduced a gene that causes the mosquitoes to glow under a specific color of light. The experiment was met with strong opposition from a small portion of Florida Keys residents, as well as the Florida Keys Environmental Alliance and Food Safety Center. Concerned that the boxes of mosquito eggs could be vandalized, Oxitec placed them in a secret place and did not reveal their exact location to the public. Questions remain as to whether genetically modified mosquitoes cause undesirable effects on mosquitoes, local animals, or the ecosystem at large. For example, after Oxitec released genetically modified mosquitoes in Jacobina, Brazil, genes from the insect were mutilated in local mosquito populations, suggesting that the lethal gene failed to kill some females before they can mate. According to a 2019 study published in the journal Scientific Reports, their hybrids did not carry the lethal gene, but instead carried genes from the original Cuban and Mexican mosquito populations used to create the modified mosquitoes. genes. It is unclear whether these new genes may have changed the biology of the mosquito. Molecular biologist Natalie Kofler, founder of E Edit Nature, an organization that advocates for the responsible use of gene editing, told Nature she hopes the Oxitec test will be conducted in a transparent and in a way that might make some community members feel better about the whole situation.

An individual Aedes aegypti mosquito captured in Costa Rica (Image: Reuters) Proposed by the Florida Keys Mosquito Control Authority (FKMCD) and Oxitec – a British biotechnology company supported by the Bill and Melinda Gates Foundation – this project aims to release large numbers of volatile mosquitoes. genetically modified in the Florida Keys this week; the two organizations said in a joint statement. As the first step of the plan, mosquito bins will be placed in six sites, and within 12 weeks will release about 144,000 Aedes aegypti mosquitoes – the strains most closely linked to infectious diseases such as fever. hemorrhage, Zika and yellow fever. If the plan works out, male mosquitoes that are unable to bite will mate with local female mosquitoes – resulting in the death of their eggs – helping to control Aedes aegypti populations and reduce transmission. epidemic spread. Approved by the Environmental Protection Agency in May 2020, the project also seeks to reduce the doses of local chemical insecticides that are harmful to the wildlife. The UK-based company, founded at the University of Oxford in 2002, also claims that it has a “high level of” support from the Florida Keys residents. But in fact, many local people expressed skepticism, even expressed opposition to local leaders. “We are not scientists, but we can read. What Oxitec says and what we read from other sources is completely different, ”Meagan Hull, a local resident, told a village council meeting in March. “We realized that it was a crime that we were forced to participate in this experiment,” Hull said. Another local resident said she was “extremely concerned” about the upcoming plan, pointing to the risk that genetically modified female mosquitoes will emerge massively in the community. “Everyone says it won’t happen, but I don’t believe it,” she said, pointing to the “lack of transparency” of Oxitec and government agencies. Even some officials have expressed concern, with Council member Mark Gregg calling the genetically modified mosquitoes “Frankenstein mosquitoes”. “I heard others say that we are being turned into guinea pigs” – he said. However, FKMCD confirmed the need to improve mosquito control measures, given that some species of mosquitoes are becoming resistant to insecticides, adding that Oxitec’s project could provide the tools. new “safe, friendly with the environment and with a focus”. Oxitec is no stranger to genetically engineered mosquitoes, and has released more than 1 billion of these mosquitoes in South America and the Caribbean, as a 27-month trial in Brazil in 2013, seek to reduce local mosquito populations by 90%. Like the current Florida Keys initiative, genetically modified mosquito eggs are planned to die in Brazil, but Oxitec drew criticism in 2019 after researchers released a report showing mosquitoes. reproduce as usual, and up to 60% of the individuals analyzed have traces of genetic modification. A similar Oxitec project in the Cayman Islands was also canceled in 2018, after local officials concluded it had failed. Health Minister Dwayne Seymour also said the plan “did not achieve the results we thought”. A few months before the Cayman Islands contract collapsed, the company announced it was a partner with the Bill and Melinda Gates Foundation of US billionaire Bill Gates to produce “friendly” mosquitoes, this time the strain. Anopheles transmits malaria. Since then, Oxitec has received only a modest $ 8.5 million from the Gates Foundation, according to its financial statements, and has received more than $ 1.2 million year-to-date alone.

With the 10 mosquito repellant tips below, you will easily take advantage of natural ingredients to create substances that protect yourself from these insects without the use of chemical repellents. Natural plants You can grow a number of useful mosquito repellants like horsetail grass, basil, rosemary, garlic, kale, lavender, lemongrass or marigold. This way, the clean garden and the plants above also effectively protect you and your pets from mosquitoes. If you live in an apartment, you can grow them in foam boxes or in small, pretty pots. Body spray and lavender oil Mosquitoes hate the smell of lavender. You can use this essential oil as a body spray or as a lotion to your skin. This is not only a healthy mosquito repellent tip, but also helps keep your skin from getting irritated and allergic. Lemongrass candles Tips to repel mosquitoes with lemongrass candles. If you do not have a garden to plant trees or you are allergic to the above plants, lemongrass candles are a great solution to repel mosquitoes. Lemongrass is a popular natural insect repellent recognized by scientists. It doesn’t have any side effects and keeps your home fresh. If you like handmade things, you can make homemade citronella candles with essential oils. Apple cider vinegar Apple cider vinegar has more benefits than you might think and most people have a little at home. If your residence is suddenly attacked by mosquitoes, make your own vinegar repellent. You can also add a little lemon lemongrass essential oil for the added effect. Spray this mixture in places where insects often gather and see effect. Soapy water If you spend a lot of time sitting in the courtyard for family dinner or relaxing, place a dish with soapy water nearby. After a while, you will find that mosquitoes are attracted to soapy water and are stuck there, unable to disturb you. Garlic According to some studies, eating garlic helps to repel mosquitoes. But if you don’t like to eat garlic then just boil the garlic water and spray the mixture in places where mosquitoes gather. Essential oils, cloves, basil, eucalyptus Using aromatherapy is one of the most effective mosquito repellent tips. The essential oils of these four plants can effectively repel mosquitoes. Dilute them with water (5-10 drops per glass of water) and apply to exposed skin or spray them on heat sources such as heaters, scented lamps, and hot pans. You can also dip a cotton pad in the essential oil and place it on a window sill. Vanilla powder Mix vanilla powder with baby lotion at a ratio of 1:10 and apply on all exposed skin. You can also dissolve vanilla in water, then spray the mixture on exposed skin and clothing to combat mosquitoes. Basil leaves You can use basil leaves and flowers, or chopped cherry blossoms. Place them in the room or rub them on exposed areas of the body. This is a very effective mosquito repellent tip. Cooking oil, shampoo and vinegar Tips to repel mosquitoes with a mixture of cooking oil, shampoo and vinegar. To make an effective mosquito repellent, you need some cooking oil, shampoo and 9% vinegar. Mix these ingredients in equal quantities and stir thoroughly until white foam appears. Pour mixture into container and leave it open. The vinegar repels insects, the shampoo hides a strong odor, and this blend is safe for children, nor does it cause a strong odor.