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Mission:  Protect the health and well-being of our public from disease and annoyance caused by mosquitoes while using environmentally  sensitive practices. 
Vision: Help lead the state of Colorado through effective and efficient mosquito treatment practices.
Motto:  It is impossible to eliminate mosquitoes, but we will always do our best to mitigate them. 

Board of Directors meeting:

Next Regular Board of Director Meeting:

April 24th, 2024 @ 6:00 p.m.

Meeting call in option is available.  If anyone would like to submit a Public Comment please email the District Manager at 

Meeting Call-In number:

(719) 496- 0999

Meeting Code: 123#

Red fog truck .jpg

The purpose of the Alamosa Mosquito Control District is to use economic and enviromentally responsible practices while suppressing larval and adult mosquito populations within The District's boundaries. We have created this website to provide general mosquito management information, our control strategies, and services we provide.  We invite you to navigate through this website and to contact us with any questions, comments or mosquito issues that are of concern. 


The 2024 Operational Season is around the corner! 

*Important News/Updates 

  • ​Larvicide Crew should start checking and treating mosquito larvae in mid to late April. It is a little to early as of this update (3.11.2024) to predict when the Spring off will start, and when standing water will start to accumulate and create mosquito habitat. Therefore mid to late April is our best prediction. 

  • Fog Truck Spraying: Fog truck spraying usually begins around the 3rd week in May; when we begin to find enough adult mosquitoes present to warrant spray applications.

  • Alamosa Mosquito Control District will be eliminating the aerial application program which helped treat many areas in the rural parts of the district boundaries. The sole reason of NOT being able to find a pilot for 2 years has forced the Board of Directors to make this decision.

  • The AMCD's Board of Directors and District Manager have working hard to find a new location where the District can build a bigger building and expand it's operational shop & equipment. The need for more spray trucks and equipment has been sought after for several years. We are excited for this project to hopefully come to fruition soon. Please, don't hesitate to call and ask for more information or with questions on this topic.

  • West Nile Virus which is transmitted by mosquitoes was significantly higher in Colorado in 2023; as well as in many parts of the United States. It is unknown if the virus will be as present in 2024; but threat and potential is always a possibility. Please help do your part in protecting yourself and family members by wearing protective clothing and/or repellent when outdoors.

call in to listen to the "daily fog routes" to find out if a truck is expected in your area. 719-589-5409 ext. 1 

Office Hours:

Monday - Friday

9:00 am - 3:00 pm

(or by appointment)


 We are working in the Field Often. Don't hesitate to call before you stop to assure someone is at the office to assist you.


Current Events:

Fog truck spraying routes: Call in M-F and listen to the Daily Fog Routes to know if the trucks will be in your area. 

  • Reminder: We cannot not operate the spray trucks if the wind is above 10 mph. 

  • Exact times of when the trucks will be spraying in your area cannot be provided. 

  • If the rural residents want their yards sprayed, please make sure that gates are open and vehicles are out of the way enough for the trucks to enter/exit.

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