Corn Newsletter : 2016-13

  1. Total Precipitation
    Author(s): Jim Noel The weather pattern has become favorable for planting. In the short-term planting is favorable but it could become less favorable in the next 1-2 week again so it is worth taking advantage of the window.
      As expected our weather pattern has changed to a much warmer one. This will persist for some time now. Temperatures for the rest of May will average +5F. This will allow May to go down as 0 to -1F for the month and it looks like the period of March to May will actually
  2. Author(s): Laura Lindsey

    Wet weather has kept many farmers (and us) out of the field.  According to the USDA National Agricultural Statistics Service, as of May 15, 10% of the soybean acres were planted.  At the same time last year, 46% of soybean planting was complete.  On average, in Ohio, the majority of soybean acres are planted mid to late May (Table 1).  Although, it is not uncommon for soybean planting to creep into June.  In general, we don’t recommend altering soybean management until

  3. Replant corn decision
    Author(s): Peter Thomison

    Although most corn that’s been planted has yet to emerge or develop much beyond the VE or V1 stage, there are localized reports of growers replanting early planted corn. Some of these replant issues appear related to the consequence of recent frost injury combined with excess soil moisture or flooding.

    Replant decisions in corn should be based on strong evidence that the returns to replanting will not only cover replant costs but also net enough to make it worth

  4. black cutworm feeding above ground
    Author(s): Kelley Tilmon, Andy Michel

    We have started to see cutworm damage in Ohio corn.  Black cutworm (BCW) is the prime offender, though other species exist.  Adult BCW (moths) are migrants from the south that start moving into Ohio in April, and lay eggs that hatch into the cutworm caterpillars.  Although there are some hotspots for egg laying, these predictions are far from exact.  Moths tend to seek out fields with a

  5. frost damaged soybeans
    Author(s): Laura Lindsey, Peter Thomison

    Soybean: Last Monday, May 16, air temperatures dropped to high 20s/low 30s causing some freeze injury to soybeans. Soybeans in low areas of the field are most likely to be affected. Plants should be assessed for damage at least five days after suspected injury to inspect for regrowth. If damage occurred above the cotyledons, the plant will likely recover. If damaged occurred

  6. cressleaf groundsel flowers
    Author(s): Mark Loux, Jeff Stachler

    It’s definitely a big year for cressleaf groundsel (Senecio glabellus), that 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.  Cressleaf groundsel

  7. fusarium head blight prediction center
    Author(s): Pierce Paul, Jorge David Salgado

    Wheat is now flowering in parts of central Ohio and will continue to flower in more northern counties later this week and into next week. According to the FHB forecasting system (, the risk for scab is low in central and northern Ohio for fields flowering at this time (May 23). Although

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.