Project Details:

USB Multi State Herbicide Resistant Crops and Weeds (Year 2 of 1720-172-0116)

Parent Project: USB Multistate Herbicide Resistant Crops and Weeds (1620-732-7236)
Checkoff Organization:United Soybean Board
Categories:Weed control
Organization Project Code:1820-172-0115-B
Project Year:2018
Lead Principal Investigator:Bill Johnson (Purdue University)
Co-Principal Investigators:
Micheal Owen (Iowa State University)
Dallas Peterson (Kansas State University)
Christy Sprague (Michigan State University)
Richard K Zollinger (North Dakota State University)
Mark Loux (The Ohio State University)
Aaron Hager (University of Illinois at Urbana-Champaign)
J D Green (University of Kentucky)
Kevin Bradley (University of Missouri)
Larry Steckel (University of Tennessee-Institute of Agriculture)
Shawn Conley (University of Wisconsin)
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Keywords: herbicide, resistance management, Weeds

Contributing Organizations

Funding Institutions

Information and Results

Comprehensive project details are posted online for three-years only, and final reports indefinitely. For more information on this project please contact this state soybean organization.

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Final Project Results

Updated February 21, 2020:
Key activities included development of weed control factsheets, planning and conducting winter meetings, workshops, and summer field days, and sharing information and co publicizing our efforts across state lines. Ten new factsheets were developed. Eight of the 10 have been distributed to soybean producing states. We are currently working on finalizing the factsheets on barnyardgrass/junglerice and giant foxtail.

During the winter meeting seasons in 2012/2013, 2013/2014, 2014/2015, 2015/2016, 2016/2017, 2017/2018 Extension Weed Scientists were speakers at over 800 meetings and field days in which various topics related to herbicide resistant weeds were either the primary focus of the meeting or discussed in depth as part of the larger meeting. These meetings reached over 40,000 people with most of the audience comprised of farmers and secondarily, crop advisors and crop input suppliers. Over two dozen new publications and over 100 new video clips have been developed since the start of the project. Conservatively, we estimate that over 400,000 copies of the printed publications were distributed over this year period of time. In addition, we have written close to 100 newsletter articles per year on these topics. These newsletter articles are viewed by 300-1000 per week in each state.

Eight new publications were developed over the last year. Five of the eight have been distributed. Still waiting on 3 of them from Osborn and Barr.

Each state conducted at least 5 winter meetings and 1 summer field day with content relayed to growers on the Take Action program and herbicide resistant weed management. Some states conducted as many as a dozen winter workshops and 5 field days on herbicide-resistant weed management and stewardship of new herbicide-resistance traits.

We are making good progress on all deliverables associated with this project. We have produced the written material, conducted winter and summer workshops, and raised awareness of the fact USB is funding herbicide-resistant weed and crop extension efforts. Our main obstacle early in the project (years 1-4) was the fact that the new herbicide-resistance traits were not approved. So, we were not able to initiate educational programs on their use. Xtend (dicamba resistant) soybeans were approved for full commercial launch in 2017 and thus we initiated efforts late in 2016 to bring growers and the ag industry up to speed on best management practices to minimize off-site movement and use of dicamba to kill weeds. The technology is useful as far as helping to control some of our worst herbicide-resistant weeds. However, widespread incidences of off-target movement and dominated time in 2017 and 2018 and we are currently waiting for an EPA decision on the future of this technology. The next round of educational efforts on Xtend will be determined once we know the results of the EPA decision.

A new round of educational efforts will be put on the ground when the Enlist (2,4-D) technology receives full export approval in China. We anticipate this happening sometime in 2019.

Project Years