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Keep Kochia from Invading Your Wheat Crop

April 14, 2020
This agronomic image shows kochia

As you plan your weed management strategy for your wheat and barley fields this spring, keep kochia top of mind.

Kochia causes up to 60% yield reduction if not controlled, and rarely fails to emerge among cereal crops each year. According to researchers with North Dakota State University, there is kochia with resistance to ALS-inhibitor and glyphosate herbicides across the state.

Since kochia germination happens early in the season, your weed management efforts will be most effective in early spring, according to Washington State University researchers. As you approach the growing season, consider these control strategies to manage kochia:

  • Partner tillage with a herbicide. Limit seeds spreading to your field by targeting escaped kochia, including any by the roadside. Research from the University of Minnesota says to delay tillage if the weeds have already gone to seed, however. Pair this strategy with a herbicide with multiple effective sites of action to help maximize yield potential.
  • Treat kochia before it matures. When kochia matures, its brittle stem breaks off and tumbles to disperse its 14,000 seeds across the landscape. It’s important to treat kochia with a herbicide before it reaches 4” in height, to prevent it from spreading and competing with your crops for water, nutrients and space.
  • Control weeds efficiently. Kochia may not be the only weed in your fields. Tough grassweeds, such as wild oat or yellow foxtail, can further threaten your yield. Save time by addressing both broadleaf and grassweeds in a single pass by using fast-acting herbicides with tank-mix flexibility.

To hammer difficult-to-control weeds in wheat and barley, we recommend Talinor® herbicide. For 1-pass broadleaf and grass control, use Talinor with Axial Bold® herbicide for dependable, broad-spectrum performance. Axial Bold has less grass antagonism when tank mixed with broadleaf herbicides, so it performs better in the tank and in the field.

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