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Boulder County
Public Health

3450 Broadway
Boulder, CO 80304
(303) 441-1100

You are here: Health Home > Communicable Disease Control > West Nile Virus > Prevention > Pesticides


Using Insecticides to Control Adult Mosquitoes 

The Environmental Protection Agency (EPA) evaluates and registers (licenses) pesticides to ensure that they can be used safely. 

These pesticides include products used in the mosquito control programs that states and communities have established. To evaluate any pesticide, EPA assesses a wide variety of tests to determine whether a pesticide has the potential to cause adverse effects on humans, wildlife, fish and plants, including endangered species and non-target organisms.

Officials responsible for mosquito control programs make decisions to use pesticides based on either an evaluation of the risks to the general public from diseases transmitted by mosquitoes, or on an evaluation of the nuisance level that communities can tolerate from a mosquito infestation. 

This is done based on surveillance and monitoring, mosquito control officials select specific pesticides and other control measures that best suit local conditions in order to achieve effective control of mosquitoes with the least impact on human health and the environment.

Based on these criteria, our mosquito control contractor, Colorado Mosquito Control, has determined Permethrin to be the appropriate mosquito control product for use in Boulder County.

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Resources
General Pesticide Information

Spray Schedule

Integrated Pest Management (IPM)

Mosquito Control District

Request Not to Apply Pesticides (PDF 428 KB)

DEET Background
New England Journal of
Medicine: Using DEET as a Mosquito Repellant
(PDF 86 KB)
 

Prevention
  1. Use DEET or alternative.
  2. DRESS in long sleeves and pants.
  3. Avoid DUSK until DAWN.
  4. DRAIN standing water. 
Resources
  1. Pesticide Info

  2. Current WNV Activity

  3. Educational Materials

  4. Boulder County WNV Response Plan

Contact Us

West Nile Virus Hotline
 1-877-462-2911

Boulder County Hotline
303-441-1460

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