A Note from the Management

The mosquito season is upon us in Western Colorado, and the Grand River Mosquito Control District will continue to provide the essential services of mosquito surveillance, inspections, and implementing control measures to reduce the spread of mosquito-transmitted diseases, such as West Nile Virus.
At this time, the Center for Disease Control and Prevention (CDC) has no data to suggest that the new coronavirus, which causes the disease COVID-19, is transmitted by mosquitoes or ticks. The primary way this coronavirus spreads is from person to person contact.  For more information, see How Coronavirus Spreads
  • GRMCD will fog adult mosquitoes from a truck on Tuesday night, September 29, 2020.  The locations that will be treated are: ‚Äč
    • Orchard Mesa area 26 Road to 32 Road, south of Highway 50
  • GRMCD will hold a Public Hearing to discuss the inclusion of a property in Grand Junction on Wednesday, October 21, 2020.  For more information, please call the District's office phone number at (970)257-0191.
  • Click here on Access Agreement to download a permission to access property form.
  • Meetings of the Board of Directors of the Grand River Mosquito Control District are open to the public.  Regular Board Meeting will be held on the third Wednesday each month, at 6:00 pm. The location is at the GRMCD office, 531 Maldonado Street, Grand Junction, Colorado.
  • Click on Agenda for the September 16, 2020 Board meeting.
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Grand River Mosquito Control District

The objective, of the Grand River Mosquito Control District, is to suppress mosquito populations, within the boundaries of the district, and in an environmentally responsible manner. A secondary objective is to monitor both larval and adult mosquito populations; to organize the population statistics, to evaluate organizational efforts, and to plan subsequent control strategies.

To inform our community, we have developed this web site to provide information on the different mosquito species and trends; our means to control the populations, and personal protection and prevention.

We invite you to contact us, regarding any mosquito issues that exist in Western Colorado.

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Suppress mosquito populations, within the boundaries of the district, and in an environmentally responsible manner.

Monitor both larval and adult mosquito populations; to organize the population statistics, to evaluate organizational efforts, and to plan subsequent control strategies.