The City of Lander will begin its annual mosquito control program on Wednesday, July 1, 2026. Spraying will take place weekly on Wednesday evenings at dusk.
The City of Lander Weed & Pest Department will initially focus mosquito control efforts around the perimeter of the City. Additional areas within the City may be treated based on mosquito surveillance and testing results.
If weather conditions, such as high winds or storms, or mechanical issues prevent spraying, operations will be rescheduled for the following evening. Residents should note that the City’s fogging equipment is very quiet and may not be as noticeable as in previous years.
No-Spray Requests
Residents who wish to opt out of mosquito spraying may submit a No-Spray Request form. Forms are available on the City of Lander website at www.landerwy.gov/weed-pest or at City Hall, 240 Lincoln Street. Completed forms should be returned to City Hall.
No-Spray requests will be honored unless Fremont County determines that West Nile virus or another mosquito-borne disease presents a significant public health risk. Requests are valid only for the current calendar year and must be renewed annually.
Learn More
For information about spraying routes, mosquito prevention and control, and the products used by the City, visit the Weed & Pest webpage. The site includes educational resources, safety data sheets, and product labels for herbicides and insecticides used by the City of Lander.
For additional information or questions, please call Kevin Green, City of Lander Parks and Recreation Director and Weed and Pest Manager, at (307) 330-3007.