Closed to the public. By appointment only until September 25, 2023. Moving to new location at 1075 South Ave West.

Lolo Mosquito District

Lolo Mosquito District

We are in active control season right now. The Mosquito District is actively monitoring mosquito populations and the diseases they carry. If you have any questions or concerns please contact: Sarah Holden at 406-550-0548

Lolo Mosquito District will fog the entire district tonight 7/11 starting around 9:00 pm. Please be advised, share this notice with your neighbors, and bring in pets, close windows and turn off sprinklers.

To receive free text notifications of fogging sign up here.

The truck speed must be maintained at 10-12 mph according to label directions. You may not see the truck come down your road but the fog will! We use the wind direction and speed to help move the Ultra Low Volume mist into yards.

YOU can help by dumping out any standing water in your yard, old tires, pails, birdbaths, etc. Keeping weeds and grass mowed short and making sure to dry out your lawn completely in between watering. Our traps indicate we have mostly flood water mosquitoes occurring in Lolo and they can be more aggressive.

Lastly we have completed some much needed maintenance on the fogging unit so we expect some more effective outcomes moving forward.

Thank you for your support!

What is a Mosquito Control District?

A Mosquito Control District is an area with set boundaries approved by the County Commissioners where the landowners have agreed to develop and administer a program for the abatement and alleviation of mosquitoes in their area. The purpose of a Mosquito Control District is to manage and control mosquito pests and prevent diseases such as West Nile and Equine Encephalitis while providing for the protection of humans, livestock, pets, songbirds, and other wildlife The County Commissioners appoint a mosquito control board that governs the district and create a mosquito control fund by levying taxes within the district to cover expenses and projects in the area.

How do I form a Mosquito Control District?

For more information on how to form a Mosquito Control District, please review the Montana Code Annotated sections from 7-22-2401 through 7-22-2513.

How many Mosquito Control Districts are in Missoula County?

Currently, there is only the Lolo Mosquito Abatement District in Missoula County.

View District Boundary Map

Who do I contact for questions on spraying or other issues?

Sarah Holden, Lolo Mosquito District Coordinator


Mosquito Control Flyer

Mosquito District Abatement Bylaws

2017 Mosquito Abatement Plan

For Updates please check out our facebook page

Please complete this form to help us determine how we can work with you to control Mosquitoes in Lolo!

Abatement District Board Seeking Applicants

One three-year term running through Dec. 31, 2024, is open to new applicants. People interested in applying can do so online at

Missoula County created the Lolo Mosquito Abatement District board of trustees in 1978 as a mosquito abatement district. The board consists of five members serving three-year terms.

The district manages and controls mosquito pests and minimizes mosquito-borne diseases, such as West Nile and equine encephalitis in the Lolo community.

Meetings vary as needed. For meeting dates and times, please call the Missoula County Weed and Extension Office (406) 258-4200.

Additional information about the Lolo Mosquito Abatement District Board is online at