The City of Laramie Mosquito Control has scheduled the aerial application of Dibrom for
control of adult mosquitoes in rural areas adjacent to the City for Monday June 27 th , 2022, starting around
7pm. Backup dates have been set for Tuesday the 28 th or Wednesday the 29 th if weather conditions arise
delaying the application. This application is targeted to control both nuisance and vector mosquitoes,
including Culex tarsalis, which can that transmit West Nile virus (WNv). Currently, we have low vector
mosquito numbers in city limits but are increasing in rural areas. Migration of these vector mosquitoes into
city limits is likely if left uncontrolled. The aerial application will be conducted during the evening hours to
coordinate with the peak of mosquito activity and to reduce the likelihood of contact with citizen’s work and
recreational activities.

Three areas are scheduled for treatment: Southwest of the city limits along Highway 230 and the Big Laramie
River drainage from the City limits southwest approximately 10 miles; West of the city limit between the Big
Laramie River on the South, Interstate 80 on the north and the Laramie Regional Airport on the west; the third
area is north of the city limit between Welsh lane and 45th street including the area of the city wastewater
treatment plant and the city landfill.

Dibrom will be applied at the ultra-low-volume rate of 1/2 ounce per acre.