Kansas Noxious Weed Law Updates

The Kansas Department of Agriculture recently made changes to the Kansas Noxious Weed Law, taking effect May 15th, 2026. The Noxious Weed list has been updated, along with weed designations and control methods; impacting landowners, local governments and others responsible for managing land across the state.

New additions to the Kansas Noxious Weed list include:
- Spotted knapweed
- Diffuse knapweed
- Common teasel
- Cutleaf teasel
- Amur honeysuckle

Pignut was REMOVED from the Kansas Noxious Weed List.

Landowners and individuals responsible for managing land are required to control designated noxious weeds using approved control methods. Effective weed management can improve land productivity, increase crop and forage yield, enhance overall property value, and reduce future costs of weed control if invasive weeds continue to spread.

For additional information on noxious weeds, visit the Kansas Department of Agriculture website at this link: www.agriculture.ks.gov/NoxiousWeeds

Visit the Butler County Noxious Weed Department to take advantage of herbicides sold at cost share prices to aide in the control of all state noxious weeds! The Noxious Weed Department is located at 475 SE Poor Farm Rd, El Dorado, Kansas, 67042. Their hours are Monday – Friday, 7 AM – 3:30 PM (closed 12-12:30 for lunch). For more information call them at (316) 321-5190 or visit their webpage at https://www.bucoks.gov/313/Noxious-Weed .