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Public WorksNoxious Weed Division

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The Mission of the Yellowstone County Weed Department is to assist the public, private, and other government agencies to manage and control existing noxious weed infestations as well as to prevent new invasive species from infesting Yellowstone County.

Using integrated weed management approaches like educational, biological, chemical, cultural and mechanical methods, this mission can be accomplished.


Free Pollinator Fair

Image of flyer for the event. All details below.

Join us for an immersive and hands-on Pollinator Fair - a family fun educational event celebrating the importance of pollinators.

Activities include:

  • Activity Booths / Games
  • Axe Throwing
  • Face Painting
  • Obstacle Course and Maze
  • Food Trucks

Admission is FREE! All ages welcome.

When: June 20, 2026 • 11AM – 3PM
Where: Pioneer Park, Billings MT


SeasonalWeed Techs

Yellowstone County only hires Seasonal Weed Techs that are commercially licensed applicators through the Montana Department of Agriculture. In order to obtain this license our seasonal weed techs have to study and pass the National Pesticide Applicator Certification Core Exam as well as the Montana Department of Agriculture Right-of-Way and regulatory Weed Exam. Every Seasonal Weed Tech is required to pass these two exams to receive their license.


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