Signs of mosquitoes in San Diego County
Mosquito problems are usually obvious from bites alone, but the source is not always visible from the patio. Daytime biting, in particular, is a strong sign of Aedes activity rather than the dusk-active species most people expect.
How to tell if you have mosquitoes
- Daytime bitesAedes aegypti bites aggressively during the day, unlike native species that are mostly active at dawn and dusk.
- Visible standing waterClogged gutters, plant saucers, tarps, or unused pool covers holding water for more than a few days.
- Larvae wriggling in waterSmall, thread-like larvae visible near the surface of any standing water when you look closely.
- Increased activity near duskA noticeable swarm around ankles or in shaded yard areas as the sun goes down, typical of native species.
- Bites concentrated in one yard areaRepeated bites in the same corner of the yard often point to a specific nearby breeding source, like a drainage low spot.
What to do next
Weekly standing-water checks are the single most effective long-term prevention, since mosquitoes need only a few days of stagnant water to complete a generation. Keeping gutters clear and treating unavoidable water sources with larvicide dunks keeps a treated yard from being recolonized from breeding sites nearby.
Ready to act? How to get rid of mosquitoes.
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Common questions
Why am I getting bitten during the day in San Diego County?
Daytime bites usually mean Aedes aegypti, an invasive species now established in San Diego County that behaves differently than the dusk-active mosquitoes most people grew up with.
Do bug zappers actually reduce mosquitoes in a yard?
Not much. Research consistently shows zappers kill mostly non-biting insects and have little effect on mosquito populations. Eliminating standing water is far more effective.
How often does a yard need mosquito treatment in San Diego County?
Most treatment programs run every three to four weeks during the active season, since vegetation barrier treatments break down and new standing water can appear between visits.
Spotting signs of mosquitoes?
Call for a free inspection across San Diego County. Flat-rate quote before any work.