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Mosquito Control

Summer Mosquito Control

The Parks and Recreation Department implements many measures to keep the mosquito population down each season.  There are steps that individuals and households can take that will make a significant, positive impact too. The single most important thing to do is eliminate standing water on and near your property. Consider taking these easy steps to help us with mosquito abatement:

  • Clean your gutters and bird baths
  • Empty the "kiddie pool" when not in use
  • Remove standing water from old tires and other yard objects
  • Avoid over watering your lawn
  • Eliminate weeds on and near your property

Mosquitoes transmit disease, for your protection, wear long sleeves and pants when outside between dusk and dawn, and apply bug spray. There are chemicals available from your local hardware store that kill adult mosquitoes.

The first mosquito flyover is typically scheduled mid-June depending on weather conditions. A potential follow up flyover will occur in July after the river level recedes and pending availability of funds. The mosquito flyover is a preventative measure, the purpose is to target mosquito larvae. The pilot releases a natural substance over large areas of standing water. On the ground, Parks’ staff adds a similar natural Larvacide in a "biscuit" form to smaller areas of standing water on City property. These chemicals eliminate mosquitoes while they are in their larvae stage.

Follow these links to view Chemical Information for Larvacide.

BTI-Briquettes Biscuit

Larvacide Label with ingredients and warnings. 

Larvacide Safety Data Sheet 

Residential mosquito fogging generally begins a bit later in the season. Fogging begins when adult mosquitoes are active throughout the entire city. The Fogging is not a preventative measure; it kills adult mosquitoes on contact and is used as such. There is no residual effect of fogging, meaning that it is a short-term immediate fix. It takes the City a week to get through the entire town. Fogging occurs during the hours after dusk in order to target mosquitoes when they are most active.

To have your address to the "no fogging list" please contact (307) 872-6151 

2018 Fogging Schedule and Map

Chemical Information for Adulticide (Fogger) 

Adulticide Label with ingredients and warnings. 

 Adulticide Fogger Safety Data Sheet. 

Parks’ staff monitors the mosquito nuisance levels throughout the season applying more larvacide "biscuits", conducting fogging in neighborhoods and flyovers.

Some years, despite all of the efforts to control mosquitoes, populations are high and can result in a major nuisance to residents. Remember to wear long sleeves and pants  when outside from dusk to dawn, use mosquito repellent with DEET, remove standing water on or near your property, and you can look at your local hardware store for sprays that will kill adult mosquitoes.

City of Green River - Fish it, float it, live it - Wyoming