New genetic test provides rapid confirmation of herbicideresistant kochia and pigweeds

North Dakota counties with confirmed populations of Group 14 resistant kochia.
North Dakota counties with confirmed populations of Group 14 resistant kochia.

Herbicide-resistant kochia is problematic for farmers in North Dakota, says Joe Ikley, North Dakota State University Extension weed specialist.

NDSU weed scientists first confirmed resistance to PPO-inhibiting (Group 14) herbicides in kochia in 2022. In a collaborative effort, BASF scientists discovered a target-site mutation in kochia that provided resistance to Group 14 herbicides. Once the targe…