Weed Control

C.O.R.N. Newsletter Articles

  1. Author(s): Mark Loux

    While it’s not terribly late yet, the wet soils and wet forecast could keep most of us out of the fields for a while.  The questions about how to deal with burndown herbicide treatments in delayed planting situations are rolling in.  One of the most common ones, predictably, is how to kill glyphosate-resistant marestail and giant ragweed and generally big weeds in soybeans when it’s not possible to delay planting long enough to use 2,4-D ester (Enlist soybeans excluded).  While we wrote last week about marestail populations being on the decline, this does not mean it’s gone by any means.  O

    Issue: 2019-11
  2. Both commercial and private applicators should note changes to labeling for Engenia (BASF), XtendiMax (Monsanto) and FeXapan (DuPont) for 2019. If these products will be part of your 2019 herbicide program please review the revised labels and requirements. Of special note is the change that only license applicators can purchase, mix, load, apply or clean application equipment removing the “supervision by a certified applicator” option for these products.

    The complete news release with more details is shown below.

    Issue: 2019-02
  3. Author(s): Dennis Riethman

    Mercer County OSU Extension will host the 2019 West Central Ohio Weed Science Day.  The program will be held on January 17, 2019, at the Knights of St. John Hall, 8608 St. Rt. 119, Maria Stein, Ohio, beginning at 9:00 a.m.  The program will address the current weed situation in area fields along with weed identification and understanding herbicide site of action.  Dr.

    Issue: 2019-01
  4. Author(s): Dennis Riethman

     

     
     
    Issue: 2018-41
  5. Seed heads of Palmer amaranth and waterhemp
    Author(s): Mark Loux

    If you don’t already have to deal with waterhemp or Palmer amaranth, you don’t want it.  Ask anyone who does.  Neither one of these weeds is easy to manage, and both can cause substantial increases in the cost of herbicide programs, which have to be constantly changed to account for the multiple resistance that will develop over time (not “can”, “will”).  The trend across the country is for them to develop resistance to any new herbicide sites of action that are used in POST treatments.  Preventing new infestations of these weeds should be of high priority for Ohio growers.  When not adequa

    Issue: 2018-23

Publications

  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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