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SU Canola (05/26/16)

Question: I have a few clients growing SU resistant canola. I have been told they need to use Draft herbicide. In the herbicide compendium in the weed guide it says it is composed of rimsulfuron and thifensulfuron. Is this correct? I was told it contained Harmony and Express?

SU Canola

Question: I have a few clients growing SU resistant canola. I have been told they need to use Draft herbicide. In the herbicide compendium in the weed guide it says it is composed of rimsulfuron and thifensulfuron. Is this correct? I was told it contained Harmony and Express?

Answer: Thanks for catching the mistake in the compendium section of the 2016 ND Weed Control Guide. Draft contains the active ingredients tribenuron (Express) and thifensulfuron (Harmony). (Continued next page)

See page 43 in the weed guide where SU canola has been added to the Canola section and Draft is the only herbicide registered for use in that SU herbicide resistant crop. That information is correct. There many brands of tribenuron and thifensulfuron on the market but Draft has the only label that allows use on SU canola.

Rich Zollinger

Extension Weed Specialist

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