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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...

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...

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....

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...

7/23/2024: The Williams County Vector Control District (WCVCD) will be conducting ground adulticide treatments, after dusk, weather and conditions permitting on Tuesday, July 23 through Thursday, July 25, in City of Williston Blocks 8, 13, and 14, rural Williston near the south end of 130th Rd NW, and in Trenton. Residents are reminded to please...

7/19/2024: The Williams County Vector Control District (WCVCD) will conduct a ground adulticide in City of Williston Block 3 on Sunday, July 21, 2024, after dusk, weather and conditions permitting. Residents are reminded to please stay at least 300 feet away from a Vector Control truck while it is fogging. Link to Spray Block Map...

UPDATE 7/17/2024: Due to aircraft issues, the USAFR will be unable to complete mosquito treatments this week for Williston and Watford City. Aerial adulticide treatments will instead be completed by the Williams County Vector Control District (WCVCD). Weather and conditions permitting, treatment for Williston will be completed tonight, Wednesday, July 17 and treatment for Watford...

7/16/2024: Between Wednesday, July 17, and Friday, July 19, weather and conditions permitting, the Williams County Vector Control District (WCVCD) will conduct an aerial adulticide treatment in City of Williston blocks 13, 15, and 16, east of the Little Muddy, and in the rural area of Williams County west of Trenton towards the Confluence. Link...

7/15/2024: The Williams County Vector Control District (WCVCD) will conduct a ground adulticide in Trenton and City of Williston Block 8 on Monday, July 15, 2024, after dusk, weather and conditions permitting. Residents are reminded to please stay at least 300 feet away from a Vector Control truck while it is fogging. Link to Spray...

7/12/2024: Due to the detection of West Nile Virus in an isolated pool of mosquitoes, Williams County Vector Control District will be conducting an aerial adulticide tonight, July 12, 2024, in the rural area southeast of Cut Bluff, near the southern end of County Road 9. Weather and conditions permitting, the treatment will begin after...

7/10/2024: The Williams County Vector Control District (WCVCD) will conduct ground adulticide treatments in the City of Williston from July 10 through July 12, 2024 in the following zones: Wednesday, July 10: Zones 3, 4, 8, 9, and 10 Thursday, July 11: Zones 5, 6, and 7 Friday, July 12: Zones 1 and 2  Spray Zone...

7/8/2024: The Williams County Vector Control District (WCVCD) will conduct a ground adulticide treatment in and around Trenton on Tuesday, July 9, 2024, after dusk, weather and conditions permitting. Residents are reminded to please stay at least 300 feet away from a Vector Control truck while it is fogging. The WCVCD uses Zenivex E20 for...