Mosquitoes might seem like a small nuisance, pesky, annoying creatures that keep us awake at night with their loud buzz and leave our bodies itchy after they bite. But these insects are far more than a summer downside.
Mosquitoes are considered the world’s deadliest animal by the CDC, since they act as vectors capable of spreading diseases that directly affect humans. In L.A. County, a particular mosquito called Aedes aegypti has been growing in numbers and is active year‑round, with a potential surge during the warm months, as reported by the L.A. Times.
Where Aedes aegypti comes from
Aedes aegypti originally comes from Africa and likely spread around the globe through human travel and trade. It has established itself in many warm regions, including SoCal, where it lives close to people and breeds in small water containers, like plant pots or bottle caps.
It is one of the few mosquito species that spreads dangerous viruses to people, like dengue, Zika, and chikungunya, illnesses that sometimes cause high fever, rash, joint pain, and more severe complications, as the CDC explains.
The Pacoima solution: sterile mosquitoes
To fight this growing problem, officials have turned to a surprising tool: a 40-foot shipping container in Pacoima that serves as a mosquito nursery. Inside, workers raise tens of thousands of Aedes aegypti males and then sterilize them using X‑rays so they can’t reproduce.
These sterilized males are released into neighborhoods so sterile males compete with wild males for mates. When female mosquitoes pair with sterilized males, the eggs they lay don’t hatch, helping reduce the overall population. This approach, tested for several years in local pilot programs, dropped female mosquito numbers by more than 80% in treated areas.
How to stay safe from mosquitoes
While scientists work on long-term solutions, you can protect yourself and your family by following these simple steps:
- Install screens on windows and doors to keep mosquitoes out of your living space.
- Use an EPA‑registered insect repellent when you’re outside.
- Wear long sleeves and pants at dawn and dusk when mosquitoes are most active.
- Remove standing water around your home, empty buckets, plant saucers, bird baths, and any containers that collect rainwater.
