The Williams County Vector Control District (WCVCD) will conduct a ground ULV (Ultra-Low Volume) mosquito control spray in the community of Wildrose on the evening of Tuesday, July 1, 2025, weather permitting. The application will take place after sunset to target adult mosquito populations. The product being used for this operation is Zenivex, which is … Continued
The Williams County Vector Control District (WCVCD) will be conducting both aerial and ground mosquito control applications across the county during the week of July 1, 2025, weather permitting. If conditions do not allow, applications will be rescheduled for a later date to ensure safety and effectiveness. Target areas currently include Trenton and Williston, with … Continued
Weather permitting, the Williams County Vector Control District (WCVCD) will be conducting an aerial application in Williston and Trenton over the weekend of 6/27/25 – 6/28/25 to control the mosquito population. WCVCD will be using Imperium for this adulticide mission, which is a product approved for use by the Environmental Protection Agency (EPA). For more … Continued
The Williams County Vector Control District (WCVCD) will be conducting a targeted ground adulticide mission in Williston Spray Blocks 4 and 8 on the evening of June 25, 2025, weather permitting. For safety and effectiveness, it will be rescheduled to later this week if conditions do not allow. Residents are reminded to please stay at … Continued
The Williams County Vector Control District (WCVCD) will be conducting a ground adulticide treatments between 6/24/2025 – 6/30/2025 in Trenton and Williston Spray Blocks 3 and 7. Weather permitting, the treatment will occur near sunset. Please maintain a distance of at least 300 feet behind Vector Control trucks when they are fogging. The WCVCD will … Continued
The Williams County Vector Control District (WCVCD) will be conducting a ground adulticide treatments on Thursday, June 19 in Trenton. Weather permitting, the treatment will occur near sunset. Please maintain a distance of at least 300 feet behind Vector Control trucks when they are fogging. The WCVCD will be using DeltaGard, which contains the active ingredient … Continued
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
