Cirque Meadows by Adam Johnson

 >  Location and Contacts


Fort Collins Office
1525 Blue Spruce Dr.
Fort Collins, CO 80524
(970) 498-6700
(970) 498-6772 Fax

Loveland Office
205 E. Sixth Street
Loveland, CO 80537
(970) 679-4580
(970) 679-4589 Fax

Estes Park Office
1601 Brodie Avenue
Estes Park, CO 80517
(970) 577-2050
(970) 577-2060 Fax

Office Hours:
8 a.m. - 4:30 p.m.

(970) 498-6775

Send email

City & County to Spray for Mosquitoes

Based on high levels of infected Culex mosquitoes trapped last week, the City of Fort Collins and the Larimer County Health Department hope to decrease the risk of human West Nile virus (WNV) infection by spraying for mosquitoes on the northeast part of Fort Collins and adjacent Larimer County. Please see the attached map for additional information, or visit

The City of Fort Collins and the Health Department will be doing adult mosquito control on Wednesday August 31, weather permitting. Spraying will occur by fogging trucks on Wednesday and will begin at 8 p.m. and end by 2 a.m.

Please see the spray area maps for additional information.

The City's contractor, Colorado Mosquito Control, will use a permethrin-based product to be applied in a fine mist. To minimize pesticide exposure, residents should stay indoors and keep doors and windows closed for 30 to 60 minutes after spraying. It's recommended that residents bring pets indoors as well. Residents can further minimize pesticide exposure by covering organic gardens, ponds, and water features with a cloth sheet or tarp.

Adult mosquito control has been going on for several weeks in Loveland, Timnath, Windsor, Johnstown and Berthoud, as well as in certain subdivisions within Fort Collins that are sprayed by homeowners associations.

West Nile virus can be prevented. In addition to community control efforts, such as larviciding, reducing water where mosquitoes can breed, and spraying for adult mosquitoes, individuals should remember to use the 4 D's to help prevent West Nile virus disease:

  • DEET or other effective mosquito repellent - Use a mosquito repellent that has been proven to be effective against West Nile Virus-carrying mosquitoes. DEET, Picaridin, Oil of Lemon Eucalyptus (also called p-menthane-3,8-diol or PMD) and IR3535 are recommended.
  • Dusk to Dawn - Avoid exposure during peak Culex mosquito feeding times, from dusk through dawn.
  • Dress - Wear long sleeves and pants to keep mosquitoes from biting.
  • Drain - Remove standing water in your yard or garden to minimize mosquito breeding areas.
Background Image: Cirque Meadows by Adam Johnson. All rights reserved.