Take Your SFV Backyard Back: Mosquito Control That Works
Aedes mosquitoes have changed backyards across the San Fernando Valley. Here's what's different, and how to actually reduce daytime biting.
If you've lived in the San Fernando Valley for more than a few years, you've noticed something: mosquitoes used to be a dusk problem. Now they bite all day, they bite your ankles, and the standard citronella candle does nothing. That's because we have a new mosquito in town.
Meet the invasive Aedes mosquito
The Aedes aegypti and Aedes albopictus mosquitoes are invasive species that established themselves across LA County over the last decade. They are very different from the night-flying Culex mosquitoes our grandparents dealt with:
- They bite during the day, especially morning and late afternoon.
- They go for ankles and lower legs, often without you noticing.
- They breed in tiny amounts of water — a bottle cap is enough.
- They don't fly far from where they hatched. If you're getting bitten in your yard, they're breeding in your yard or your immediate neighbor's.
This last point is the most important one. Mosquito control in the SFV is a source reduction problem, not a spraying problem.
Find and eliminate breeding sites
Walk your yard after a watering cycle and look for any standing water that lasts more than a few days:
- Plant saucers under potted plants (the #1 source we find)
- Bromeliads and other water-holding plants
- Bird baths that aren't refreshed weekly
- Clogged rain gutters
- Tarps, kiddie pools, and outdoor toys
- Pet water bowls left outside
- Recycling bins with liquid in the bottom
- Buckets, wheelbarrows, and trash can lids
- Tree hollows and bamboo cuts
- Decorative fountains that aren't circulating
Tip the water out, scrub the container, and check weekly. That's the single highest-leverage action you can take.
What about standing water you can't drain?
For rain barrels, koi ponds, and irrigation features, use Bti dunks (Bacillus thuringiensis israelensis). These are biological larvicides that are safe for pets, fish, and birds but lethal to mosquito larvae. They're available at any hardware store. Replace monthly.
Adult mosquito treatments
A targeted barrier treatment to vegetation around your patio and yard perimeter reduces the adult population for 3–4 weeks. This is most effective when combined with source reduction — spraying without removing breeding sites just buys you a few weeks before the population rebounds.
We use products that are safe for pets and pollinators when applied correctly, and we avoid spraying flowering plants where bees are active.
What doesn't work
- Citronella candles and tiki torches — local relief at best, no population effect.
- Bug zappers — they kill mostly moths and beetles, almost no mosquitoes.
- Ultrasonic apps and wristbands — no peer-reviewed evidence of effect.
- One-time fogging without source reduction — population recovers in 2–3 weeks.
The Evictr backyard mosquito plan
We inspect, identify and eliminate breeding sources, treat adult harborage, and set you up with a monthly maintenance cadence through mosquito season (roughly April–November in the Valley). Most clients see a dramatic difference after the first visit.
Serving San Fernando Valley homes from North Hollywood to Woodland Hills.