The Williams County Vector Control District (WCVCD) will be conducting ground and aerial adulticide treatments in Ray, Trenton, and Williston on Tuesday, June 17 and Wednesday, June 18, weather and conditions permitting. On June 17, WCVCD will be conducting ground adulticide treatments in Ray and Trenton. Weather permitting, treatments will occur near sunset. Please maintain a … Continued
The Williams County Vector Control District plans to conduct three separate adulticide treatments between 6/10/25-6/17/25 across the County. Citywide aerial adulticide missions in Williston and Grenora area using Imperium will begin as early as the afternoon of 6/11/25. Ground adulticide mission in Trenton/ Trenton Park area using DeltaGard will begin as early as the night … Continued
The Williams County Vector Control District will be conducting truck mounted adulticide treatments between 6/6/25-6/9/25 in Williston (Spray Block 8). Weather and conditions permitting, treatments will occur near sunset. Find this information and a map of the WVCD Spray Blocks at https://www.williamsnd.com/spray-reports/. Please maintain a distance of at least 300 feet behind Vector Control trucks … Continued
VECTOR GROUND ADULTICIDE SPRAYING NOTICE (5/30/25 Update) Spray Blocks 7 and 8 will be serviced with DeltaGard tonight if conditions allow. _____ WCVCD will be conducting a targeted ground adulticide mosquito spray missions this week, beginning Tuesday night, May 27, weather permitting. (5/27/25) Williston Spray Block 14 is the current target area View the Spray … Continued
5/23/25 In collaboration with the Williams County Vector Control District #1, the United States Air Force Reserve (USAFR) Youngstown Air Reserve Station, 910th Airlift Wing, will be conducting a wide-area aerial larvicide mission over the Missouri River bottomlands. Weather and conditions permitting, the spray will be between May 27 and June 6. No applications will … Continued
5/13/2025: Williams County Vector Control District (WCVCD) will be conducting a targeted ground adulticide mosquito spray mission tonight, Tuesday, May 13, in Williston’s Spray Block 8, weather permitting. Link to Spray Block Map The department will move forward with spraying tonight if wind speeds remain between 12–15 MPH. For safety and effectiveness, it will be … Continued
8/22/2024: Williams County Vector Control District (WCVCD) will be conducting an ground adulticide tonight, August 22, 2024, in City of Williston Spray Blocks 3 and 8. Weather and conditions permitting, the treatment will begin after sunset. Residents are reminded to please stay at least 300 feet away from a Vector Control truck while it is … Continued
8/1/2024: In collaboration with the Williams County Vector Control District (WCVCD), the United States Air Force Reserve (USAFR) Youngstown Air Reserve Station 910th Airlift Wing will be conducting an adulticide mission over Williston and Watford City, weather and conditions permitting, between August 6 and August 8, 2024. Large military aircraft will be flying at low … Continued
8/1/2024: Williams County Vector Control District (WCVCD) will be conducting ground adulticide treatments tonight, August 1, 2024, in Williston Spray Block 7 and in Ray. Weather and conditions permitting, the treatment will begin after sunset. Residents are reminded to please stay at least 300 feet away from a Vector Control truck while it is fogging. … Continued
7/31/2024: Due to the detection of West Nile Virus in an isolated pool of mosquitoes, Williams County Vector Control District (WCVCD) will be conducting an ground adulticide tonight, July 31, 2024, in Spray Blocks 2, 3, and 4 in the southeastern area of the City of Williston. Weather and conditions permitting, the treatment will begin … Continued
