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Aedes Aegypti

Public Health Advisory 

An invasive mosquito has been found in Washington County. Mosquito control crews will be inspecting, trapping, and treating in the affected areas

 Aedes Aegypti

  • They are usually found in containers in residential areas and bite any time of day.
  • They mainly bite humans, usually around areas with thin skin, like ankles and wrists
  • They can carry diseases that aren’t native to Utah, but they have not been known to carry any diseases in Washington County.

Characteristics & Behaviors

  • The mosquito is black with white patches and banding.
  • They stay relatively close to where they hatch out, but they can fly as far as a block away (in a lifetime).
  • They lay eggs on the sides of containers, and they will hatch out when water is reintroduced, and emerge as adults in as little as 4-5 days.
A close-up of a Aedes egypti mosquito on a plain background.

Treatments

  • Source reduction (removing water sources) is the best method of control.
  • Removing backyard clutter and trimming overgrown foliage can help identify areas where water is pooling.
  • Potential sources may include bird baths, buckets, toys, plant pots, totes, tires, etc.
Various potted plants and planters on a garden path, with some soil and greenery visible.
A wheelbarrow filled with water and debris, positioned between a brick wall and some stacked bricks. A bag of soil or fertilizer is nearby.
A green plastic bin partially filled with water, placed near a wall and downspout, with some plants nearby.
A seed tray partially submerged in water inside a container.
Two metal pet bowls on a wooden stand; one filled with kibble, the other empty, above a water basin.
A tiered stone fountain with water, surrounded by grass and brick paths.
An upside-down plastic step stool covered with leaves containing stagnant water with Aedes aegypti larvae.
A pink toy car with stagnate water in the bottom congaing Aedes egypti larvae
A red bucket containing wooden blocks and a white object inside.
Various potted plants and planters on a garden path, with some soil and greenery visible.
A wheelbarrow filled with water and debris, positioned between a brick wall and some stacked bricks. A bag of soil or fertilizer is nearby.
A green plastic bin partially filled with water, placed near a wall and downspout, with some plants nearby.
A seed tray partially submerged in water inside a container.
Two metal pet bowls on a wooden stand; one filled with kibble, the other empty, above a water basin.
A tiered stone fountain with water, surrounded by grass and brick paths.
An upside-down plastic step stool covered with leaves containing stagnant water with Aedes aegypti larvae.
A pink toy car with stagnate water in the bottom congaing Aedes egypti larvae
A red bucket containing wooden blocks and a white object inside.

If you have experienced DAY BITING mosquitoes, please contact the Southwest Mosquito Abatement & Control District office at 435-627-0076 or www.swmosquito.org

This is a FREE service for Washington County Utah residents.