Close Alert

West Nile Virus has been identified in mosquitoes captured in the Grand Valley. In addition, our trap results show an increased presence of the mosquito that transmits the disease. We urge all residents to take personal responsibility for their health by wearing protective clothing, wearing mosquito repellent, avoiding outdoor activities at dawn and dusk, and eliminating stagnant water from their properties.  


Grand River Mosquito Control District

In 1982 a group of citizens that lived in the Redlands area addressed a growing concern about a serious mosquito problem in their neighborhoods. After conducting a petition drive and a random survey of homeowners in the area, the concerned citizen group organized a vote to instigate a mosquito control program in their neighborhoods. With the help of Mesa State College, a citizen board was formed and the Redlands Mosquito Control District was born.

The organization was established as a Special District and is funded by a mil levy tax that is assessed to the home and land owners that live within the district boundaries. An elected, citizen, board of directors meet monthly to make decisions regarding personnel, spending and in general to account for the activities of the control effort.

In 1997, the city of Fruita was growing and the population became concerned about the significant mosquito issues in their area. The Redlands Mosquito Control District answered the call and an election was held to include the Fruita area in the Special District. Again in 2005, in response to the West Nile Virus outbreak in Western Colorado and in particular in the Grand Valley, the citizens of Palisade, Clifton, Fruitvale and Orchard Mesa held an election and they too joined the existing mosquito control efforts.

The Redlands Mosquito Control District became the Grand River Mosquito Control District in 2005 and has operated throughout the valley’s Colorado River basin since then. From its inception in 1982 the district has been dedicated to the idea of controlling mosquito populations in a responsible manner, utilizing integrated pest management (IPM), principles and employing biological larvicides for the bulk of the control efforts. Over the years the control program has improved performance by remaining on the cutting edge of technology, introducing the use of global positioning systems (GPS / GIS) to the control efforts. The GRMCD has also sought to improve its performance by continuing to look at all the available tools used to control mosquito populations and using those that meet critical standards.

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

In an effort to share mosquito information with the community, we have developed this web site and are constantly looking for ways to improve it. We welcome you and invite you to share with us your thoughts regarding the mosquito issues that exist in western Colorado