9/30/2025: The Williams County Vector Control District (WCVCD) will be conducting the following ground adulticide treatments near sunset, weather and conditions permitting:
- 9/30/2025: City of Ray
- 10/1 through 10/3/2025: Williston Spray Blocks 1 – 8, south Williston (Stony Creek Township) near the Lake Jessie area
WCVCD will be using DeltaGard (active ingredient: Deltamethrin), which is approved for use in residential areas. Residents are reminded to maintain a distance of at least 300 feet from Vector Control trucks during fogging operations.
Spray Block Map: https://arcg.is/DvqyS
To avoid mosquito bites, residents are also encouraged to take precautions when spending time outdoors between dusk and dawn such as:
- Wearing long sleeve tight knit shirts and long pants
- Limiting time outdoors between dusk and dawn
- Using a mosquito repellent such as DEET, Picardin, or oil of lemon eucalyptus
- Eliminating standing water on your property
To learn more, please visit the Vector Control website.