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The US plans to use killer mosquitoes to fight disease Printer friendly page Print This
By Zoya Teirstein | Grist
Friday, Nov 10, 2017

Dead mosquito: She gave her life for her species. R.I.P.

The Asian tiger mosquito, an invasive species that aggressively spreads viruses like dengue and yellow fever, may have met its match.

Last week, the Environmental Protection Agency approved the use of Wolbachia pipientis, a bacterium that can infect and eliminate wild Asian tiger mosquitoes, Nature reports. Biotechnology startup MosquitoMate will release lab-raised mosquitoes infected with the bacteria in 20 states and Washington, D.C.

MosquitoMate will only release male mosquitoes. When these “good” mosquitoes mate with “bad” female Asian tiger mosquitoes in the wild, they produce eggs that won’t hatch. Over time, populations of Asian tiger mosquitoes will begin to die off. This method of getting rid of disease-ridden mosquitoes has been tested extensively in Brazil.

To effectively suppress Asian tiger mosquitoes, MosquitoMate will have to find a more efficient way to sort and release the millions of lab-raised mosquitoes needed per week. Right now, technicians sort mosquitoes by hand or using mechanical sorters.

Still, this non-chemical method of removing the pests doesn’t have many drawbacks. The good mosquitoes don’t bite, and they won’t harm other species of mosquitoes.

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