Mosquito & Chemical Application Hotline (307) 721-5056

Updated Wednesday, August 4, 2021 @ 3:00 PM (Final update for the day will be at 4:15 pm.)


West Nile virus Risk: Level 1 (Low Risk)

Additional West Nile Virus detected in Mosquito Pools (click to learn more).

Adult Mosquito Fogging:  Thursday, August 5th  View In-Town Map

Zones: West Zone, Parks/Rec Areas, and Greenbelt Pathway

Applications will begin at 9:00PM

Chemical: Zenivex E4 RTU

Center for Disease Control (CDC) : What You Need to Know About Truck Spraying

West Nile virus (WNV) Surveillance Update: In 2021, fifty-nine (59) mosquito pools have been tested so far. Three (3) mosquito pools have tested positive for West Nile virus this season. 

Larval Mosquito Control: 

Mosquito Control will be applying Bti to control larval mosquitoes in irrigated and wetland areas in and around Laramie on a daily basis throughout the spring and summer seasons.


Noxious Weeds:



Broadleaf: Thursday, August 5th

Location: LaBonte Park, Laprele Park

Chemical: TZone

Bareground: Thursday, August 5th

Location: Grand Ave Medians, Greenbelt, Laprele Park

Chemical: Produce, Rodeo

Applications will begin at 7:00AM

All applications are on a weather permitting basis.

Hotline information regarding chemical applications on city owned properties will be updated daily at 4:00 PM. Call 721-5056 or click on the Mosquito and Chemical Application Hotline tab on the City of Laramie home page. 

All applications are on a weather permitting basis.