March Workshops Tackle Weed Resistance Management - UNL CropWatch, Feb. 7, 2013

March Workshops Tackle Weed Resistance Management - UNL CropWatch, Feb. 7, 2013

February 7, 2013

Resistant marestail

Nebraska field with a marestail control failure in 2012.

Learn what you can do now

Herbicide-resistant weeds are increasing in Nebraska. Uncontrolled horseweed, kochia, giant ragweed and waterhemp are becoming an all too common sight in commodity crop production.

To help combat the issue, UNL Extension weed scientists will offer four workshops on new tools to battle weed resistance.

These “hands-on” workshops will demonstrate how to use the Herbicide Site of Action Numbering System in the 2013 Guide for Weed Management Guide for Nebraska and cover these topics: 

  • herbicide tolerant crops,
  • how weed resistance develops,
  • overview of weed resistance in the Midwest and Nebraska, and
  • examples and practical solutions for major weed resistance cases in Nebraska.

Workshops will be held at:

  • Norfolk — March 18, Life Long Learning Center, Northeast Community College. Registration link
  • Auburn — March 19, Nemaha County Fairgrounds.Registration link
  • Ogallala — March 20, Valentinos Pizza meeting room.Registration link
  • Alliance — March 21, Alliance Learning Center. Registration link

Speakers will include UNL Extension Specialists Greg Kruger, Bob Wilson, and Stevan Knezevic at Ogallala and Alliance, and Amit Jhala, Lowell Sandell, and Stevan Knezevic at Norfolk and Auburn. Extension Educators collaborating with the workshops include Gary Lesoing, Doug Anderson, and John Thomas.

Managing the spread of resistant weeds ...

takes a community effort. You're invited to share information about this event with others in your farming community by emailing or posting this event flyer.


Online preregistration is required. Cost is $30 and includes a variety of printed materials to use for later reference. Doors will open at each site at 8:30 a.m. local time and the meeting will be held from 9 a.m. to noon. Register early as attendance will be limited to 30 people per site in order to facilitate the hands-on format of these workshops.

Stevan Knezevic, Robert Wilson, Greg Kruger, Amit Jhala, and Lowell Sandell
UNL Extension Weed Science 

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