Aerial Mosquito Control Planned

Laramie, Wyoming- City of Laramie Mosquito Control has scheduled the aerial application of Dibrom for control of adult mosquitoes in rural areas adjacent to the City on Wednesday evening, June 24 th , at 8 pm. 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 limits 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 limits 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. The application will be rescheduled to take place on Thursday, June 25 th, at 8 pm if inclement weather prevents the application on Wednesday, June 24th.

Currently, The City of Laramie has tested one pool of mosquitos and one crow for West Nile Virus with NIETHER sample testing positive. Due to low numbers of vector mosquitos and no positive mosquito samples, the risk for West Nile Virus infection remains at Level 1 (Low Risk).

Schedules regarding Mosquito Control and Parks and Cemetery chemical applications for control of weeds and insect pests are available daily on the Mosquito Control and Integrated Pest Management Hotline at 721-5056. The schedule is available at approximately 4 pm daily. Spraying information is also available on the City website. Look for the daily mosquito and chemical application hotline tab on the home page at For further information, contact Tyler Shevling, Mosquito Control Crew Supervisor at 721-5056; or Scott Hunter, Parks Manager at 721-5257