West Nile Virus 2014

Mosquito traps are set by cities and HOA's along the Front Range of Larimer County to provide information about mosquito abundance. We can expect mosquito numbers to increase with rising temperatures.

Q&A - Larimer County Health Department’s Decision to Spray Portions of Southeast Fort Collins for West Nile Prevention

Outcomes of spraying mosquitoes in part of Southeast Fort Collins

Weekly maps of the Fort Collins trap results will be posted by the Health Department to help residents and homeowner associations see when their neighborhoods are at high risk.

Weekly trap reports for Fort Collins and other cities in Larimer County are also available through Colorado Mosquito Control's website.

Standing water provides excellent breeding areas for mosquitoes. This is the time to eliminate standing water around your yard and property.

Hot weather and moist conditions can result in explosive growth in mosquito numbers.

Now is the time to avoid exposure to biting mosquitoes and to wear repellent when outdoors! Be sure the repellent you use is effective against culex mosquitoes, the kind that carry West Nile virus. Information on effective repellents and other ways you can avoid West Nile virus infection is available through links in the lower part of this page.

Current Statistics

Larimer County
Human cases: 11
Human WNV risk: Moderate
WNV-positive mosquito pools: 70
   What is this?

Health Department spraying recommendations for 2013

Past years statistics

Mosquito Control

For information about mosquito control or to report standing water, call:

(970) 663-5697 – Fort Collins
(970) 962-2583 – Loveland
(970) 498-6797 – Larimer County
(970) 962-2583 – Windsor
(970) 962-2583 – Johnstown

Subscribe to spraying notifications

FAQ about mosquito control

Colorado Mosquito Control

Current spraying information

National Pesticide Information Center

Mosquito trap information