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West Nile Virus Information, Public Safety

IMPORTANT NOTICE: Mosquito Control Spray Notice for the Week of August 18, 2014 - The City of Longmont will be spraying for mosquitoes in the area of LM-22, LM-27 and LM-31, (see maps below) on Thursday, August 21, beginning about 8:30 pm, weather permitting. Areas that are not sprayed due to inclement weather on Thursday will be rescheduled to Friday, August 22.

moderate risk

4 D's of Prevention

View a video from last season that helps outline the importance of prevention and protection, as well as our efforts to control the spread of West Nile Virus. You can also find helpful information at

Mosquito Control Strategy

The City of Longmont has contracted with Colorado Mosquito Control (CMC) to implement an "integrated pest management program" to combat mosquitoes that might carry the West Nile Virus. This program focuses on first attacking mosquitoes in their larval stage before they become airborne. This is the best method since it eliminates mosquitoes before they hatch. This method also minimizes fogging to kill the adult, airborne bugs. However, some localized spraying might be necessary.

Fight the BiteSpray Schedule

Colorado Mosquito Control evaluates mosquito traps every Sunday, and notifies the City on Monday night with a localized spray schedule. When spraying is required, the public will be notified on Tuesday via the Times-Call, this web page, Twitter, Facebook and the City's e-Alert email system (subscribe to the "West Nile" list). Spraying occurs on Wednesday nights (weather permitting).

The Boulder County Mosquito Control District spray schedule is published every Tuesday in the Boulder Daily Camera and Longmont Times-Call. The City of Longmont Spray Schedule appears every Tuesday in the Longmont Times-Call in conjunction with the Boulder County Mosquito Control Program ad.

Spraying Maps

Below are maps of typical mosquito "hotspots" around Longmont. When local spraying is needed it will be concentrated to specific predetermined areas. Spraying typically occurs on Thursday nights. Click on the map links to see specific boundaries and streets.


Citywide map
Ute Creek Drive, County Line Road
Venice Street, 15th Avenue, Coffman Street, 10th Avenue
Spencer Street, 24th Avenue,Francis Street, 17th Avenue

Airport Road, HWY 66,

Lakepark Drive, McIntosh Lake

Airport Road, Baylor Drive, Princeton Drive, Fordham Street, 9th Avenue
Great Western Drive, HMY 119,
County Line Road, Union Reservoir
County Line Road
1st Avenue, 3rd Avenue, Nelson Road
95th Street, Pike Road,
Grandview Meadows Drive, Nelson Road, Clover Basin Drive
Collyer Street, 17th Avenue, Alpine Street, Mountainview Avenue
Collyer Street, 21st Avenue, Alpine Street, 17th Avenue
Hover Street,1st Avenue, Boston Avenue
Alpine Street, Mountain View Avenue, 9th Aveenue
Clover Basin Drive, Airport Road, Glenneyre Drive, Renaissance Drive, Pike Road



07/11/14 - Mosquito Spraying Resecheduled for Friday Night, July 11

07/09/14 - Three Longmont Mosquito Pools Test Positive for West Nile Virus

06/18/14 - Longmont Mosquito Pool Tests Positive for West Nile Virus

View Archived Information

Hotline NumbersFight the Bite Logo

Supplemental Links and Resources


west nile severe


one bite adphoto of a mosquito