Corn Newsletter : 2017-04

  1. Author(s): Mark Loux

    As of the end of 2016, Palmer amaranth had been found in 18 Ohio counties, and the majority of it is resistant to both glyphosate and ALS-inhibiting herbicides (site 2) based on OSU greenhouse screening.  Not all of these “finds” represent problem infestations, and in some cases the potential for a few plants to become an established patch was remedied by timely removal and subsequent monitoring.  There are however a number of fields where Palmer became well established and

  2. Author(s): Mark Loux

    The latest blog post on the OSU weed management website,, has information on XtendiMax and Engenia.  This includes primary labels and soybean supplemental labels for both products, along with an ODA fact sheet summarizing key aspects and differences between the labels.  We have also posted an OSU Powerpoint that summarizes some of the key stewardship information from labels.  BASF and Monsanto have started to provide

  3. Author(s): Ed Lentz, CCA, Laura Lindsey

    Normally we would be concerned about producers applying nitrogen to wheat on frozen ground this time of year. The recent wave of abnormally warm temperatures has removed any frost that was in the ground and suggests that green-up may come sooner than recent years.

    Even if wheat comes out of winter earlier, the crop still does not require large amounts of N until stem elongation

  4. Author(s): Steve Culman, Greg LaBarge, CCA, Harold D. Watters, CPAg/CCA, Ed Lentz, CCA, Anthony Fulford

    Ohio State is looking for farmer cooperators and crop consultants to help

  5. Author(s): Laura Lindsey

    2013, 2014, and 2015, with funding from Ohio Soybean Council and help from county extension educators, we measured soybean yield limiting factors on 199 farms across the state. Data collected included management practices (i.e., crop rotation, variety, row width, etc), soil fertility status, soybean cyst nematode (SCN) egg counts, and soybean yield. These were the top yield-reducers in our research:

    1.)   Planting Date: On average, soybean fields

  6. Author(s): John Fulton

    Planting remains a crucial field operation establishing maximum yield potential.  Mistakes or poor planter performance can reduce yield potential.  Variables such as seed spacing, seeding depth and optimizing seedbed preparation for proper soil-to-seed contact are important to achieving potential yields.  Proper planter maintenance and setup are fundamental to get ready for spring planting.  Purdue University research indicated that a 2bu/ac decrease in corn yield for every

About the C.O.R.N. Newsletter

C.O.R.N. is a summary of crop observations, related information, and appropriate recommendations for Ohio Crop Producers and Industry. C.O.R.N. is produced by the Ohio State University Extension Agronomy Team, State Specialists at The Ohio State University and Ohio Agricultural Research and Development Center. C.O.R.N. Questions are directed to State Specialists, Extension Associates, and Agents associated with Ohio State University Extension and the Ohio Agricultural Research and Development Center at The Ohio State University.