Purdue Extension Agriculture Agronomy The Kernel Corny News

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Corny News Network

25 July 2022
URL: http://www.kingcorn.org/news/timeless/FloodDamageLateCorn.html

Flood or Ponding Damage to Corn Late in the Growing Season

R.L. (Bob) Nielsen
Agronomy Dept., Purdue Univ.
West Lafayette, IN 47907-2054
Email address: rnielsen at purdue.edu
Twitter: @PurdueCornGuy

  • Excessive mid- to late season rainfall events can create havoc with corn fields.
  • Immediate damage can be assessed within 5-7 days.
  • Longer term consequences are dependent on subsequent weather.
  • Expected risks are outlined in this article.

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7-day observed rainfall

July 25, 2022 7-Day Observed Precipitation for Indiana and
surrounding areas. Source National Weather Service.

Excessive rainfall events (aka "goose-drownders", "toad-stranglers") that occur late in the growing season can cause flooding of rivers, creeks, and streams as well as ponded areas within fields distant from floodwaters. The consequences to grain yield and quality from the damage caused by such flooding/ponding are difficult to pinpoint with much accuracy because little research exists that addresses these chance-occurring yield-limiting factors. Risks and expectations, however, can be outlined.

Related References

Camberato, Jim and RL (Bob) Nielsen. 2017. Soil Sampling to Assess Current Soil N Availability. Corny News Network, Purdue Agronomy Extension. http://www.kingcorn.org/news/timeless/AssessAvailableN.html [URL accessed July 2022].

Coulter, Jeff, Seth Naeve, Dean Malvick, and Fabian Fernandez. 2021. Flooded Corn. Univ. Minnesota Extension. https://extension.umn.edu/growing-corn/flooded-corn [URL accessed July 2022].

Nebraska Extension. 2022. Hail Know (resources for timely decisions) CropWatch, Univ. Nebraska Extension. https://cropwatch.unl.edu/hailknow [URL accessed July 2022].

Nielsen, R.L. (Bob). 2003a. Bacterial Ear Rot in Corn Due to Flooding. Corny News Network, Purdue Agronomy Extension http://www.kingcorn.org/news/articles.03/EarRot-0720.html. [URL accessed July 2022].

Nielsen, R.L. (Bob). 2003b. Corn & Soybean Loss From Floods & Ponding. Corny News Network, Purdue Agronomy Extension http://www.kingcorn.org/news/articles.03/Flooding-0717.html. [URL accessed July 2022].

Nielsen, Bob. 2013. Damage to Corn Plants by Strong Winds. Corny News Network, Purdue Agronomy Extension http://www.kingcorn.org/news/articles.13/WindDamage-0712.html [URL accessed July 2022].

Nielsen, Bob. 2015. Recovery From Hail Damage to Young Corn. Corny News Network, Purdue Agronomy Extension http://www.kingcorn.org/news/timeless/HailDamageYoungCorn.html [URL accessed July 2022].

Nielsen, Bob. 2021. Stress During Grain Fill: A Harbinger of Stalk Health Problems. Corny News Network, Purdue Agronomy Extension http://www.kingcorn.org/news/timeless/StalkHealth.html [URL accessed July 2022].

Nielsen, RL (Bob) and Gail Ruhl. 1998. Bacterial Ear Rot in Flooded Corn. Corny News Network, Purdue Agronomy Extension http://www.kingcorn.org/news/articles.98/p&c9828.html. [URL accessed July 2022].

Ortez, Osler, Greg LaBarge, Alexander Lindsey, Wanderson Novais. 2022. Managing Corn and Nitrogen with Water Excess Conditions. Ohio State Univ. Extension. https://agcrops.osu.edu/newsletter/corn-newsletter/2022-19/managing-corn-and-nitrogen-water-excess-conditions [URL accessed July 2022].

Rees, Jenny, Roger Elmore, and Al Dutcher. 2020. Wind-damage to Corn. CropWatch, Univ. Nebraska Extension. https://cropwatch.unl.edu/2020/wind-damage-corn [URL accessed July 2022].

Roth, Greg, Jud Heinrichs, Craig Altemose, Virginia Ishler and Marvin Hall. 2021. Managing Flood Damaged Crops. Penn. State Univ. Extension. https://extension.psu.edu/managing-flood-damaged-crops [URL accessed July 2022].

Thomison, Peter. 2017. Wind Damage in Corn - “Green Snap” and Root Lodging. C.O.R.N., Ohio State Univ. Extension. https://agcrops.osu.edu/newsletter/corn-newsletter/2017-21/wind-damage-corn-“green-snap”-and-root-lodging [URL accessed July 2022].

Lindsey, Alexander, Osler Ortez, and Peter Thomison. 2022. Strong Storms and Downed Corn – How will this affect yield? C.O.R.N. Newsletter, Ohio State Univ. https://agcrops.osu.edu/newsletter/corn-newsletter/2022-22/strong-storms-and-downed-corn-–-how-will-affect-yield [URL accessed July 2022].

Vorst, Jim. 1993. Assessing Hail Damage to Corn. Purdue Univ. Extension Publication NCH-1. https://www.extension.purdue.edu/extmedia/nch/nch-1.html [URL accessed July 2022].