600,000 Wolbachia mosquitoes released in Washington DC
Authorities released 600,000 mosquitoes infected with Wolbachia bacteria in Washington DC as part of a program to reduce the local mosquito population.
The Full Story
A plain summary built from the channels that reported this story.
Authorities in Washington DC have released 600,000 mosquitoes as part of a programme to reduce the local mosquito population. The insects are all male and infected with a gut bacterium called Wolbachia, which causes the eggs of any female they mate with to be infertile. The aim is to cut the number of biting females, which spread diseases and ruin outdoor activities.
The programme is being run by Be Safe Mosquito Control, a company that claims to be the first in the United States to offer this residential service. Homeowners can hire the firm to release 1,500 of these 'zap males' each week throughout the summer, totalling 24,000 per property. The mosquitoes stay within a 200-metre radius of the release point.
Residents have shown interest. One local said: 'I was like, sign me up. Let me know how much it costs and let's do it.' Another noted that their backyard had become unusable in summer, a problem they blamed partly on climate change, which allows mosquitoes to thrive in more temperate parts of the US.
The technology is not new globally. Similar programmes in Singapore have reduced mosquito populations by 80 to 90 per cent. The US has been slower to adopt the method, but this summer's release in the capital marks a significant step. The company plans to release 600,000 male mosquitoes over the season, with several thousand already deployed.
On screen
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Key Claims
Claims reported during this story's coverage, mapped by channel. Ordered by how many channels carried each claim.
| Claim | BBC NEWS |
|---|---|
| 600,000 male mosquitoes are being released in Washington DC this summer. | |
| The mosquitoes are infected with Wolbachia bacteria which prevents eggs from hatching. | |
| The programme has reduced mosquito populations by 80-90% in Singapore. |
Channel Perspectives
What each channel focused on, with key quotes.
BBC News focused on the counterintuitive nature of releasing mosquitoes to fight mosquitoes, explaining the science behind the Wolbachia method. The report highlighted the company's pioneering role in the US residential market, included resident reactions, and linked the problem to climate change. It also noted the success of similar programmes abroad, particularly in Singapore.
- “We do plan to release 600,000 male mosquitoes.”
- “These male mosquitoes, when they mate with the female, will actually cause her to become infertile for the rest of her life.”
- “In Singapore, they've reduced the mosquito population by about 80 to 90%.”
Broadcast Timeline
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