Mosquito Control Los Angeles — Eliminate Day-Biting Invasive Mosquitoes
Targeted mosquito yard treatments protecting LA families from Aedes aegypti and Aedes albopictus mosquitoes.
Licensed · Insured · LA-Based
Overview
Los Angeles faces an escalating invasive mosquito crisis. The yellow fever mosquito (Aedes aegypti) and Asian tiger mosquito (Aedes albopictus) have established permanent breeding populations throughout LA County since their first detection in 2013, as confirmed by the Greater Los Angeles County Vector Control District (GLACVCD). Unlike the native Culex mosquito (which bites at dawn and dusk), invasive Aedes mosquitoes bite aggressively throughout the day, rest at ground level in vegetation rather than water surfaces, and breed in containers as small as a bottle cap, making them exceptionally difficult to control with conventional approaches.
How to Identify Mosquitoes
- Aedes aegypti: 4–7 mm, distinctive white lyre-shaped pattern on thorax, white-banded legs, black body
- Aedes albopictus: similar size, single white dorsal stripe on thorax (no lyre pattern), banded legs
- Culex quinquefasciatus (native): 3–6 mm, plain brown with no white markings, bites at dusk and dawn
- Aedes eggs: laid singly above waterline in dark containers, survive desiccation for months before hatching
- Aedes larvae: "wrigglers" in standing water as small as a bottle cap, distinguished by siphon tube length
- Biting behavior: Aedes bite at ankle/knee level outdoors during daylight; Culex bite from above at night
Where They Hide in LA Homes
- Ornamental containers, saucers under potted plants, and bird baths in LA yards — primary urban breeding sites
- Clogged gutters, low spots in tarps, and water collecting in discarded tires in LA alleys
- Rain collection barrels and fountain ponds without mosquito dunks or fountain pump circulation
- Tree holes, bamboo cut ends, and bromeliad axils in LA's heavily planted hillside neighborhoods
- Construction site water accumulations and pooling in abandoned lots across LA's urban core
Health Risks
- Dengue fever transmission — locally acquired cases confirmed in LA County for the first time in 2023
- Chikungunya virus capacity — Aedes aegypti is a proven vector; GLACVCD monitors for local transmission
- Zika virus vector competency — Aedes aegypti can transmit Zika; travel-associated cases reported in LA
- West Nile Virus via native Culex mosquitoes — LA County has recorded WNV fatalities annually since 2004
- Severe allergic reactions and secondary infection from excessive biting and scratching in children
Property Damage
- Mosquito pressure reduces usability of outdoor living spaces, patios, and gardens in LA homes
- Negative impact on outdoor dining revenue for LA restaurants and hospitality venues
- Property value perception concerns in neighborhoods with documented high Aedes populations
Prevention Tips
- 1
Eliminate all standing water in containers every 5–7 days — the Aedes egg-to-adult cycle in LA summer
- 2
Use Bti (Bacillus thuringiensis israelensis) mosquito dunks in any ornamental water features monthly
- 3
Screen all rain barrels and water storage containers with fine mesh
- 4
Report Aedes sightings to GLACVCD at (562) 944-9656 — free service and trap deployment is available
- 5
Wear DEET or picaridin repellent when gardening or doing outdoor work during daytime in LA summer
- 6
Keep yard vegetation trimmed — Aedes rest at ground level in dense low foliage during the day
Mosquitoes — Frequently Asked Questions
Native Culex mosquitoes in LA are larger, brown, bite from dusk to dawn, and breed in large water bodies like storm drains and ornamental ponds. Invasive Aedes mosquitoes are small, black-and-white striped, bite aggressively during the day, and breed in tiny containers in your yard. Aedes are much harder to control and are considered an urgent public health priority by GLACVCD.
Yes. In summer 2023, LA County DPH confirmed the first locally acquired dengue fever cases in California in decades, transmitted by Aedes aegypti in Pasadena and Long Beach neighborhoods. This represents a genuine disease risk requiring proactive mosquito management, not just occasional fogging.
We use a combination of adulticide residual treatment on resting vegetation, larvicide application to water features, and source reduction guidance. The residual treatment kills resting Aedes mosquitoes on contact for 2–4 weeks. We recommend monthly treatments April through October for sustained protection in LA.
Yes, when applied by a licensed PCO. We use EPA-registered products at label rates with appropriate re-entry intervals (typically 30–60 minutes after spray dries). We offer organic botanical options for households with specific concerns. Pyrethrin-based treatments break down rapidly and do not persist in the environment.
Mosquitoes Problem in Los Angeles?
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