Weed Control

C.O.R.N. Newsletter Articles

  1. Author(s): Elizabeth Hawkins , Author(s): Amanda Douridas

    TPodcastwo new episodes of the Agronomy and Farm Management podcast are available this month. In Episode 3, released June 13th , Dr. Mark Loux provides advice for managing some of Ohio’s toughest weeds! Episode 4, coming June 27th will help prepare you for disease scouting with Drs.

    Issue: 2018-18
  2. Author(s): Mark Loux , Author(s): Jeff Stachler

    It’s definitely a big year for cressleaf groundsel (Senecio glabellus), the yellow-flowered weed that can be seen about everywhere right now.  While it is most often found in no-till corn and soybean fields that have not yet been treated with burndown herbicides, there seems to be an above-average number of wheat and hayfields and pastures with substantial populations. 

    Issue: 2018-14
  3. Author(s): Mark Loux

    This is a revision of an article we seem to publish in C.O.R.N.

    Issue: 2018-11
  4. Author(s): Mark Loux

    Dicamba can have a good fit in spring preplant burndown programs, especially for control of overwintered marestail in fields not treated the previous fall. We typically recommend a preplant burndown that includes at least two herbicides with substantial activity on marestail in this situation, such as Sharpen + 2,4-D or Gramoxone + 2,4-D + metribuzin. Dicamba is the most effective burndown herbicide on glyphosate-resistant marestail in the spring though, and in our research has usually killed or at least stopped emerged marestail in their tracks without help from other herbicides.

    Issue: 2018-05
  5. Author(s): Jeff Stachler

    The continued use of glyphosate alone postemergence in Roundup Ready soybean and corn continues to select for glyphosate-resistant weeds. In West Central Ohio waterhemp and giant ragweed continue to increase in frequency in fields. The most concerning of these is waterhemp as it has a chance to become the number one weed problem in West Central Ohio and other parts of the state.

    Issue: 2017-41


  1. 12/2016

    Ohio, Indiana and Illinois Weed Control Guide, Bulletin 789. Publication gives detailed guidance on weed control selections. Numerous tables by crop and application help producers select the best product option for their weed control situation. 

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