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City Will Post Mosquito Spraying Progress Maps Online

This press release was posted 1,555 days ago and may contain inaccurate information.

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Contact Information
  • Mike Calhoon, City of Fort Collins, West Nile Virus Program Manager, 970-416-2079
  • Susan Herlihy, Interim Director, Communications and Public Information Office, 970-221-6207
To help residents track the progress of mosquito spray trucks during spraying operations Aug. 19-20, updated maps will be posted on the City’s website,

Spraying progress maps are intended to improve access to information and to help determine when the spray trucks are in a general area. These images will be generated every 30 minutes and will show where the trucks have sprayed since beginning their operations at dusk each evening.

City to Spray for Mosquitoes Aug. 19-20 In accordance with the City’s West Nile Virus Management Policy, the City of Fort Collins will spray for adult mosquitoes beginning at dusk on Aug. 19-20. Weather permitting, truck-based fogging will take place:

• North of Mulberry Street – Monday, Aug. 19
• South of Mulberry Street – Tuesday, Aug. 20

A map of spray zones is attached and available online at

The City’s contractor, Colorado Mosquito Control, will use a permethrin-based product to be applied in a fine mist. Spraying will begin at dusk according to the schedule above, and will continue until 2 a.m. the following morning for each application. To minimize pesticide exposure, residents should stay indoors and keep doors and windows closed for 30 to 60 minutes after spraying occurs. 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 sheet or tarp.

The decision to spray for mosquitos follows the recommendation by Dr. Adrienne LeBailly, Larimer County Department of Health and Environment Director, and a majority recommendation from the City of Fort Collins West Nile Advisory panel.