Adulticide – Williston & Grenora – 7/21 – 7/25/2021

Posted on July 21, 2021


Notice of ground and aerial adulticide campaign with image showing a mosquito crossed out

UPDATE 7/23 @ 6 pm: Williston Vector Control will be able to proceed with aerial and ground treatments this evening near sunset.

Aerial: Williston spray blocks 7, 11, 13, and 14 and the City of Grenora

Ground: Williston spray blocks 1 – 6

Please remember to keep a distance of at least 300 feet from the Vector Control trucks when they are spraying.

UPDATE 7/22 @ 8:50 pm: Due to the windy conditions, both the aerial and ground treatments for this evening have been cancelled. Treatments have been rescheduled for tomorrow, weather and conditions permitting.

Update 7/22 @ 7:30 pm

Williston Vector Control will be able to proceed with aerial and ground treatments this evening near sunset.

Aerial: Williston spray blocks 7, 11, 13, and 14 and the City of Grenora

Ground: Williston spray blocks 1 – 6

Please remember to keep a distance of at least 300 feet from the Vector Control trucks when they are spraying.

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The Williston Vector Control District is tentatively scheduled to conduct adulticide treatments as follows:
 
  • Aerial adulticide treatments for Williston blocks 7, 11, 13, and 14, and the City of Grenora between Thursday, July 22nd and Sunday, July 25th.
  • Ground adulticide treatments for Williston Blocks 1 – 6 between Wednesday, July 21st and Thursday, July 23rd. Please keep a distance of at least 300 feet behind Vector Control trucks while spraying.
All treatments will take place near sunset, weather and conditions permitting. Specific treatment dates and locations will be updated on this post and on the Williams County Facebook page by about 4 pm on the scheduled treatment day.
 
For more information and a map of the WVCD Spray Blocks, visit the Spray Reports webpage.
 
Williston Vector Control uses Zenivex E20 for adult mosquito control treatments (adulticides), which contains the active ingredient Etofenprox. Zenivex E20 is a product approved for use in residential areas by the Environmental Protection Agency (EPA).
 
To avoid mosquito bites, citizens are advised to take extra precautions when spending time outdoors during the hours of dusk to dawn during the summer months. Wearing long sleeve tight knit shirts and long pants, limiting time outdoors during these times, and using a mosquito repellent such as DEET, Picardin, or oil of lemon eucalyptus are good actions to take to prevent bites. Citizens can help prevent mosquito re-population by eliminating standing water on their property.
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