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C.O.R.N. Newsletter: 2026-27

Crop Observation and Recommendation Network

C.O.R.N. Newsletter is a summary of crop observations, related information, and appropriate recommendations for Ohio crop producers and industry. C.O.R.N. Newsletter is produced by the Ohio State University Extension Agronomy Team, state specialists at The Ohio State University and the Ohio Agricultural Research and Development Center (OARDC). C.O.R.N. Newsletter questions are directed to Extension and OARDC state specialists and associates at Ohio State.

  1. Rain in August Helps Make Grain – Until it Becomes Too Much

    Author(s): Alexander Lindsey, Laura Lindsey, Osler Ortez

    A large portion of Ohio received substantial rain and scattered storms over the last week, resulting in waterlogged or flooded conditions in fields (Figure 1). Corn and soybean fields are mostly in the grain-filling stages, and the yield impacts of flooding will likely differ for each crop.

  2. Battle for the Belt: Season 4, Episode 10: Late-Season Insect Pests

    Author(s): Maria Kessler, Diego Miranda, Pedro Gimenes, Laura Lindsey, Osler Ortez, Kelley Tilmon

    Season 4, Episode 10 of Battle for the Belt is now available: https://youtu.be/Cb8ptOhLPwk

    In Episode 10, we hear from Dr. Kelley Tilmon, a field crop entomologist with Ohio State University. Kelley discusses the late-season insect pests to watch for in corn and soybeans, including key scouting considerations and management thresholds.

  3. Lep Monitoring Network Update #18 – Fall Armyworm Monitoring

    Author(s): Amy Raudenbush, Rosalind Holt-Frank, Savannah Ballweg, Frank Becker, Lee Beers, CCA, Trevor Corboy, Amanda Douridas, CCA, Mary Jo Hassen, Seth Kannberg, Alan Leininger, Jordan Penrose, Amanda Perkins, Beth Scheckelhoff, Frank Thayer, Kyle Verhoff, Jacob Winters, Kayla Wyse, Curtis Young, CCA, Andy Michel, Kelley Tilmon

    This is our 18th week of the Lep (moth) monitoring program, and we are transitioning into monitoring for our final pest of the season: Fall Armyworm. Next week marks the last week of monitoring for CEW, with a continuing average of around 1.3.

    Fall Armyworm

  4. Relentless Inundation

    Author(s): Aaron Wilson

    Climate Summary

  5. Join Us October 5th to Talk Manure and Farmland Economics!

    Author(s): Rachel Henry, CCA/CPAg

    Do you utilize manure on your farm ground? Do you own a dairy or swine barn? If so, join Ohio State University Extension on Monday, October 5th to learn about how these two factors can impact the value of your farmland. Dr. Chen-Ti Chen, Professor in the Department of Agricultural, Environmental, and Development Economics, will share his work on this topic and what it means for you as a producer or landowner. This fully virtual webinar will take place from 10:00 a.m. to 11:00 a.m. via Zoom and will be recorded for later viewing.

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