Nebraska

Herbicide Resistant Weeds in Nebraska

Updated October 20, 2016. Source: John Lindquist, University of Nebraska; www.weedscience.org – Nebraska

Reading this list: Each weed with herbicide resistant populations in this state is listed. Underneath each species is a list of the unique resistant biotypes of that weed in the state, according to the herbicide group(s) they are resistant to.

Shattercane

  • Group 2

Tall waterhemp – Highest concern in eastern & south-central

  • Group 4
  • Group 5
  • Group 9
  • Group 27
  • Group 2

Palmer amaranth – Highest concern in eastern & south-central

  • Group 2
  • Group 5
  • Group 27
  • Group 5 + Group 27
  • Group 5 + Group 9

Kochia – Highest concern in western NE

  • Group 4
  • Group 5
  • Group 9
  • Group 2
  • Group 2 + Group 9

Giant ragweed – Highest concern in northern & northeastern

  • Group 9

Common ragweed – Highest concern in northern & northeastern

  • Group 9

Horseweed/marestail

  • Group 9
  • Group 2

Johnsongrass

  • Group 2

Redroot pigweed

  • Group 5