Corn Newsletter : 2015-29

  1. Aerial imagery of 2015 corn and soybeans
    Author(s): John Fulton

    Andrew Klopfenstein, Kaylee Port and Scott Shearer also contributed to this article

    Wet spring and persistent rain in many areas of Ohio have generated highly variable harvesting conditions for 2015 in both soybeans and corn.   There are maturity, height, and expected yield differences within many fields that will bring about the importance of combine adjustments but also yield monitoring management, in particular calibration.  The image presented was captured late

  2. Author(s): John Fulton

    Kaylee Port was also a contributor to this article

    2015 represents another unique cropping year due to the wet weather conditions during spring planting and persistence through July.  The result has been many fields with highly variable soybeans conditions with a few containing short soybeans.  The variable crop conditions translate into variable harvesting conditions in terms of moisture and height.  Therefore, proper setup and pre-season maintenance along with correct

  3. Crawford, Pickaway, Wood County Wheat Seeding Rate Trials
    Author(s): Laura Lindsey, Pierce Paul, Ed Lentz, CCA

    Wheat helps reduce problems associated with the continuous planting of soybean and corn and provides an ideal time to apply fertilizer and manure, condition the field, and plant cover crops after harvest. With soybean harvest beginning, we would like to remind farmers of a few management decisions

  4. Author(s): Mark Loux

    This summer’s weather caused problems with weed control in some areas of the state, and this certainly includes our two major weeds, giant ragweed and marestail.  As we move through harvest and into the season of wheat planting and fall herbicide application, be sure that strategies effectively address marestail since there is an abundance of marestail seed blowing around.  The larger plants evident now in wheat stubble or above the soybean canopy may be producing seed, but these

  5. Author(s): Peter Thomison, Allen Geyer

    When checking corn fields prior to and during harvest, it’s not uncommon to encounter abnormal corn ears such as those shown above (Fig. 1), especially when the crop has experienced stress conditions. Some of these abnormalities affect yield and grain quality adversely. We recently updated “Troubleshooting Abnormal Corn Ears” (available online at 

  6. Author(s): Peter Thomison

    Excessive rainfall (which contributed to N loss and poor root development) followed by late season drought had a major impact on ear and kernel formation in many Ohio corn fields this year. Poor ear and kernel development is associated with variability in plant growth within fields that is related to differences in the timing and duration of soil saturation.   In some areas within fields subject to protracted saturated soil conditions, ears are absent (“barren”) or

  7. Hessian Fly-free Date by County
    Author(s): Andy Michel, Pierce Paul

    A good rule of thumb for planting wheat is to wait after the Hessian fly-free date.  These dates are predictions on when most Hessian fly adults would no longer be alive and lay eggs in wheat fields.  If planted too early, the eggs can hatch and stunt or kill the wheat plants. Keep in mind that this date is also good for cover crops as well, as mentioned by the Penn St. Field Crop News (

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.