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Risk 5/5

Yellow Fever Mosquito

Aedes aegypti · “The Urban Mosquito”

Small, dark mosquito with white markings on legs and body. Highly adapted to urban environments. Found indoors and outdoors, prefers shaded areas. Active during daylight, especially dawn and dusk.

Disease risks

Moderate

Zika Virus

Prevalence: High

High

Dengue Fever

Prevalence: High

Critical

Yellow Fever

Prevalence: Low in US

Moderate

Chikungunya

Prevalence: Moderate

How to identify

Appearance
Size
4-7mm (small)
Color
Dark brown to black with white/silver markings
Distinctive features
White stripe down center of thorax, white rings on legs and abdomen
Resting posture
Head-down posture
Bite behavior
Prefers
Humans primarily
Pain level
High (causes immediate pain)
Persistence
Very persistent, will bite multiple times
Transmission
Most efficient disease vector of all mosquitoes

What actually works

Effectiveness 9/10

Pyrethroid Spray Treatment

Professional-grade synthetic pyrethroid insecticide applied by licensed technicians. Fast-acting, EPA-approved, effective against adult mosquitoes.

Effectiveness 8/10

Perimeter Barrier Spray

Professional application of insecticide around property perimeter. Creates a 'moat' of protection that kills mosquitoes attempting to enter treated areas.

Effectiveness 10/10

Habitat Elimination (Source Control)

Removal and treatment of breeding sites. Professional inspection identifies and eliminates standing water where mosquitoes lay eggs.

Effectiveness 9/10

Insect Growth Regulator (IGR)

Methoprene or pyriproxyfen application that prevents mosquito larvae from developing into adults. Chemical that mimics juvenile hormone.

Effectiveness 8/10

Mosquito Dunks (DIY Bti)

Donut-shaped tablets containing Bacillus thuringiensis var. israelensis. Drop into standing water to eliminate mosquito larvae.

Fun fact

Aedes aegypti mosquitoes can travel up to 40 miles in a single lifetime, spreading disease across entire regions.

About the Yellow Fever Mosquito

Yes — Yellow Fever Mosquito carries Zika Virus, Dengue Fever, Yellow Fever. Most efficient disease vector of all mosquitoes