Corn Newsletter : 2015-27

  1. Author(s): Anne Dorrance

    Across the state some soybeans have hit the later growth stages and we have a range of tall, beautiful soybeans loaded with pods to short, scraggly, can still see the rows with few pods soybeans and everything in between.  Variability rules for the summer of 2015.  Over the next couple of weeks watch your fields and take some notes – you can learn a lot at the end of the summer to help make better decisions for 2016.  To see photos of all the conditions and symptoms mentioned below, click 

  2. WBCW larva in corn ear
    Author(s): Andy Michel

    Over the past few weeks, we have been receiving calls, emails and texts about finding large caterpillars feeding on corn ears (see photo).  In most cases, these are turning out to be Western bean cutworms.  Although our numbers have been about the same as previous years, we may have seen slightly more survival. This may be due to the drier and milder July, as well as delayed and patchy corn maturity which provided a lot oviposition sources.

  3. corn leaf disease symptoms
    Author(s): Pierce Paul

    Early development of gray leaf spot (GLS) and northern corn leaf blight (NCLB) had us all concerned about the potential for major epidemics of these diseases in 2015. However, conditions have since been warm and dry across most of the state, drastically reducing the spread of these and other foliar diseases. In fact, lesions of GLS and eye spot from early outbreaks can still be found on leaves below the ear in some fields, but in most cases they are of restricted development and the disease has not spread to the upper leaves.

  4. Palmer Amaranth seed head
    Author(s): Mark Loux

    The frequency of Palmer amaranth infestations in Ohio has been holding relatively steady again into this year.  We have mostly an isolated field or patch in about 10 counties, with the exception of two small epicenters of Palmer amaranth - far southern Scioto County and an area along the Madison-Fayette County line north of Jeffersonville.  Several new infestations of Palmer amaranth in soybeans have been reported over the past several weeks though.  It was also found in a first-year hayfield, where cutting and competition from the alfalfa/grass stand will likely keep it under control in co

  5. moisture stress, flipped leaves
    Author(s): Laura Lindsey

    Most areas in Ohio experienced above average rainfall during soybean vegetative stages.  With wet weather, soybeans tend to have reduced tap root growth and increased lateral root growth near the soil surface(photo example).  This is a problem when the weather turns dry...Dry areas in Ohio are reporting drought stress conditions on soybean such as soybean leaves flipping upside down.  August rainfall

  6. Author(s): Laura Lindsey, Eric Richer, CCA, Pierce Paul

    Growers are interested in wide-row wheat production due to reductions in equipment inventory (i.e., lack of grain drill) and to allow intercropping of soybean into wheat. With funding from the Ohio Small Grains Marketing Program and the Michigan Wheat Program, we’ve conducted row width trials to examine variety selection and seeding rate. Here are some considerations if you plan on growing wheat in wide rows this fall:

  7. Author(s): Pierce Paul

    Q: What if I plant scabby wheat for grain or use it as a cover crop?

  8. Author(s): Amanda Douridas

    OSU Extension Champaign County and the Champaign Soil and Water Conservation District are offering a Soil Health Workshop Series beginning in September. This workshop is designed for farmers interested in learning more about soil health and fertility and will be limited to 25 participants. The registration is cost is only $25 for four meetings thanks to a Top of Ohio RC&D grant, 4R Tomorrow grant and Ohio Soybean Council. Registration includes two soil samples, dinner at the evening meetings and class materials.

  9. Author(s): Ted Wiseman

    The Central Ohio Corn Field Day will be held Thursday, September 3 beginning at 5:00 pm at Ohio Foundation Seeds located at 11491 Foundation Road in Hartford, Ohio.  There is no charge to attend this field day.  For more information including topics, speakers and sponsors click on the flyer link below.

    Central Ohio Corn Field Day Flyer

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.