Herbicide hard on kochia, easy on the crop rotations

Growers in the dark brown and brown soil zone have a new herbicide option designed to control kochia in cereals.

Corteva Agriscience’s OnDeck has a Group 6 (bromoxynil) and a Group 27 (tolpyralate), an active ingredient that is new to the western Canadian cereal market.

Jason Smith, Corteva’s western portfolio marketing manager for cereal herbicides, said OnDeck will be a valuable tool to help fight herbicide resistant kochia.

Essentially, all kochia on the Prairies is considered resistant to acetolactate synthase inhibitor and there are populations resistant to glyphosate, dicamba, and fluroxypyr.

Last summer, kochia resistant to PPO inhibitors may also have surfaced in Saskatchewan.