1. Vector Control
  2. Spray Notices

Spray Notices

Treatment Information

Dates of mosquito control treatments are subject to change and are based on multiple factors including weather and mosquito abundance. Advance notification of the week a treatment may occur is provided to the public via this page, our Facebook page, and to the media.

Spray Notices

Large airplane flying

Adulticide – Williston – 8/5 – 8/12/2022

Posted on August 11, 2022

UPDATE 8/11/2022 @ 11 AM: Due to USAFR equipment issues, tonight's aerial adulticide treatment of the Williston area spray blocks has been cancelled. Williston Vector Control will instead attempt to conduct an aerial adulticide treatment of the Williston area spray blocks and the Trenton spray block on Friday, August 12, weather and conditions permitting. --------------------------------...
Notice of ground adulticide campaign with image showing a mosquito crossed out

Adulticide – Williston & Trenton – 7/21/2022

Posted on July 21, 2022

The Williston Vector Control District is tentatively scheduled to conduct a ground adulticide treatment for Williston spray blocks 8 and 13, the area east of Williston along Highway 85B, and the Trenton spray block on Thursday, July 18. Treatment will take place near sunset, weather and conditions permitting. For more information and a map of...
Large airplane flying

USAFR returns to Williston for Adulticide Mission – August 2022

Posted on July 19, 2022

The Williston Vector Control District has been notified by the Youngstown Air Reserve Station, 910th Airlift Wing, that they will, in fact, be coming to Williston in August. Logistical hurdles have been surmounted and they are tentatively scheduled, weather and conditions permitting, to conduct an aerial adulticide treatment one evening during the week of August...
Notice of aerial adulticide campaign with image showing a mosquito crossed out

Adulticide – Williston & Trenton – 7/18/2022

Posted on July 18, 2022

UPDATE 7/18 @ 6:30 PM: Tonight’s aerial adulticide treatment for the Williston area spray blocks and the Trenton spray block has been rescheduled for tomorrow due to weather. Weather and conditions permitting, the treatment will begin near sunset on Tuesday, July 19. ------------------------- The Williston Vector Control District is tentatively scheduled to conduct an aerial adulticide...

Adulticide – Williston – 7/14/2022

Posted on July 14, 2022

The Williston Vector Control District is tentatively scheduled to conduct a ground adulticide treatment for Williston spray blocks 1, 3, 6, and 8 on Thursday, July 14. Treatment will take place near sunset, weather and conditions permitting. Citizens are reminded to please stay at least 300 feet back from Vector Control vehicles while they are...
Notice of ground adulticide campaign with image showing a mosquito crossed out

Adulticide – Williston – 7/11/2022

Posted on July 11, 2022

The Williston Vector Control District is tentatively scheduled to conduct a ground adulticide treatment for Williston spray blocks 3, 4, 5 and 8 on Monday, July 11. Treatment will take place near sunset, weather and conditions permitting. Citizens are reminded to please stay at least 300 feet back from Vector Control vehicles while they are...
Notice of ground adulticide campaign with image showing a mosquito crossed out

Adulticide – Williston – 7/9/2022

Posted on July 6, 2022

The Williston Vector Control District is tentatively scheduled to conduct a ground adulticide treatment for Williston spray blocks 3, 4, 5 and 8 on Saturday, July 9. Treatment will take place near sunset, weather and conditions permitting. Citizens are reminded to please stay at least 300 feet back from Vector Control vehicles while they are...
Notice of ground and aerial adulticide campaign with image showing a mosquito crossed out

Adulticide – Williston – 7/6/2022

Posted on July 5, 2022

UPDATE 7/5 @ 4:45 PM: The tentatively scheduled ground and aerial treatments for Wednesday, July 6th will be conducted for all Williston area spray blocks (1 - 14). Spray blocks 1 - 12 will be treated via aerial and spray blocks 13 and 14 will receive ground treatments. In response to the latest trap counts...

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