Manage Resistance Now has put out a new fact sheet on dealing with herbicide-resistant kochia.
“Herbicide-resistant kochia is one of the largest weed threats to crop production in Western Canada,” the organization, created by CropLife Canada, notes in the online resource (available in the Weeds section of manageresistancenow.ca.
A combination of control methods is needed, and the fact sheet lists 10. One of those 10 is rotating and mixing herbicides, and the resource has specific tank mixes for cereals, canola and pulses.
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A kochia plant produces, on average, about 15,000 seeds and the weed has developed resistance to Groups 2, 4, and 9 herbicides.
“Due to its ability to self- and cross-pollinate, kochia plants can be pollinated by one with different genetics and pass along resistance,” the fact sheet notes.
