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Press Releases

For Immediate Release  • June 1, 2012
Staff Contact: Dan Wolford, Parks, Open Space, Greenways Manager, 303-774-4691
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Fight the Bite

Mosquito Trapping in Longmont Begins Monday, June 4


JUNE 1, 2012 - The City of Longmont's hired contractor Colorado Mosquito Control, Inc. (CMC) will begin CDC Light Trap operations June 4th, weather permitting, at eleven area trap sites.

For the past several years, Boulder, Weld and Larimer counties have been hotspots for mosquitoes that carry the West Nile virus. The City of Longmont works with the Boulder County and Weld County health departments, the Centers for Disease Control and Prevention

(CDC), the Colorado Department of Public Health, and Colorado Mosquito Control to lessen the impact of West Nile in our community.

The City’s mosquito program relies on several tactics to address the problem. The primary focus is identifying potential breeding sites and treating the larvae before they become adults and begin looking for meals. However, on occasion localized spot spraying is necessary.

Localized spraying usually occurs around small ponds and streams where mosquitoes breed. Rarely, the City conducts citywide spraying when there is a significant risk of West Nile virus but only after recommendations from Boulder County Public Health, the Colorado Department of Public Health and Environment, the CDC, and the Longmont City Manager.

Once WNV has been identified within the three County region (Boulder, Weld and Larimer), the designated threshold for spraying is triggered when any one of eleven trap sites throughout the City encounters adult mosquitoes of 100 or greater. This is specifically a vector control program for WNV and spraying is then site specific. These trap sites are monitored and evaluated on a weekly basis. This information is shared between Colorado Mosquito Control, the Boulder County Public Health Department and the City of Longmont. Typical hotspots for mosquito activity generally concentrate around water. These locations include Jim Hamm Park, Sandstone Ranch, St. Vrain Greenway east of Martin Street, Fox Hill Golf Course Neighborhoods and Union Reservoir.

Although Longmont has a sophisticated mosquito control program, the most important component is residents protecting themselves. Follow these tips – the 4 Ds – to avoid mosquito bites:
• Dusk: Minimize outdoor activity between dusk and dawn.
• Dress: Wear long sleeves and long pants when you are outside between dusk and dawn.
• Drainage: Remove all stagnant water in your yard, including in pools, birdbaths, tires and pottery.
• DEET: Use a mosquito repellent when you are outside, preferably one that contains DEET.

Stay informed about spraying in your neighborhood
1. Look for the spray schedule that appears weekly in the Times-Call.
2. Visit for spraying notices and links to information about West Nile virus and other health issues.
3. Join the Chemical Sensitive Notifi cation List. Go to and click on “Spray Schedules” to request notification prior to spraying taking place.
4. Visit throughout the summer for reports and updates about the Longmont area.

You also can call Colorado Mosquito Control’s toll-free comment line at 877-276-4306 or 303-558-8730 to report problem areas or express concerns.