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Ohio State University Extension

CFAES

Corn

Recently revised corn-related fact sheet

Ohio Corn Performance Test (OCPT): https://ohiocroptest.cfaes.osu.edu/corntrials/

Ohio Organic Corn Performance Test (OOCPT): https://ohiocroptest.cfaes.osu.edu/organiccorntrials/

Ohio Silage Performance Trial: https://ohiocroptest.cfaes.osu.edu/silagetrials/

Corn Production and Management by Topic
Climate  Harvesting 
Growth and Development  Specialty Corns

Fertility Recommendations 

Isolation Requirments for Identity Preserved (IP) Non-GMO Corn Production
Corn Pest Management   

 

We recently updated the “Troubleshooting Abnormal Corn Ears” site to help corn growers and agricultural professionals diagnose and manage various ear and kernel anomalies and disorders

 

 

 

2020 Ohio Corn Performance Test

2020 Ohio Silage Performance Test

C.O.R.N. Newsletter Articles

  1. A Fall Armyworm

    Lep Monitoring Network – News on Fall Armyworm (FAW), WBC and CEW, Update # 16

    Author(s): Stephanie Pflaum , Author(s): Amy Raudenbush , Author(s): Maddie Brillhart , Author(s): Nic Baumer , Author(s): Trevor Corboy , Author(s): Allen Gahler , Author(s): Mary Jo Hassen , Author(s): Ed Lentz, CCA , Author(s): Kendall Lovejoy , Author(s): Clifton Martin, CCA , Author(s): Sarah Noggle , Author(s): Les Ober, CCA , Author(s): Jordan Penrose , Author(s): Beth Scheckelhoff , Author(s): Mike Sunderman , Author(s): Frank Thayer , Author(s): Kyle Verhoff , Author(s): Brooks Warner , Author(s): Jacob Winters , Author(s): Kayla Wyse , Author(s): Curtis Young, CCA , Author(s): Andy Michel , Author(s): Kelley Tilmon

    Today rounds out our 16th week of monitoring for Ohio pests at the Lep Network. This past week, we have seen a sharp decline in WBC numbers and are continuing to see a low average for CEW. Since we are nearing the end of scouting season for WBC, expect this decline to continue and for averages to remain low. Monitoring for WBC will only continue for one more week, while CEW scouting will carry on through August.

    Issue: 2024-26

  2. Lep Monitoring Network – News on WBC and CEW, Update # 15

    Author(s): Stephanie Pflaum , Author(s): Amy Raudenbush , Author(s): Maddie Brillhart , Author(s): Nic Baumer , Author(s): Lee Beers, CCA , Author(s): Trevor Corboy , Author(s): Allen Gahler , Author(s): Don Hammersmith , Author(s): Mary Jo Hassen , Author(s): Alan Leininger , Author(s): Ed Lentz, CCA , Author(s): Sarah Noggle , Author(s): Les Ober, CCA , Author(s): Jordan Penrose , Author(s): Mike Sunderman , Author(s): Frank Thayer , Author(s): Kyle Verhoff , Author(s): Brooks Warner , Author(s): Jacob Winters , Author(s): Curtis Young, CCA , Author(s): Andy Michel , Author(s): Kelley Tilmon

    We have just finished out our 15th week of monitoring for Ohio pests at the Lep Network. This past week, we have seen a continuation of WBC numbers trending down and a slight increase in the CEW average. As was mentioned last week, WBC populations across Ohio have most likely hit their peak numbers of the season and a decline should be expected.

    Issue: 2024-25
  3. field of corn tasseling

    Regional Corn Yield Forecasts for 2024: July 23 Outcomes

    Author(s): Osler Ortez

    Corn growth and development are progressing well across most of the state (Figure 1), though recent reports indicated limited rainfall and dry soil conditions potentially leading to crop stress in some areas. Despite the wide range of growth and stages across the state due to a wide planting date window this year, over 50% of corn fields have reached the silking stage, R1 (Figure 2).

    Issue: 2024-25
  4. ear of corn with pinkish mold growing at tip

    Risk of Corn Grain Contamination with Vomitoxin in Ohio in 2024: Projection for the Weeks of July 21 and 29

    Author(s): Pierce Paul , Author(s): Jason Hartschuh, CCA , Author(s): Aaron Wilson , Author(s): Stephanie Karhoff, CCA

    This week we continue providing updates pertaining to the projected risk of grain contamination with the mycotoxin deoxynivalenol (DON), which is commonly referred to as vomitoxin. This week, the focus is on fields reaching the silking or R1 growth stage between July 21 and August 4. Using temperature and RH data from CFAES weather stations across the state of Ohio as predictors, the chance (or probability) of vomitoxin contamination of corn grain was estimated using models developed in the Paul lab.

    Issue: 2024-24
  5. close up view of corn leaf with white mass of eggs with caterpillars emerging

    Lep Monitoring Network – Time to Scout for Western Bean Cutworm, Update # 14

    Author(s): Stephanie Pflaum , Author(s): Amy Raudenbush , Author(s): Maddie Brillhart , Author(s): Trevor Corboy , Author(s): Allen Gahler , Author(s): Don Hammersmith , Author(s): Mary Jo Hassen , Author(s): Ed Lentz, CCA , Author(s): Kendall Lovejoy , Author(s): Sarah Noggle , Author(s): Les Ober, CCA , Author(s): Jordan Penrose , Author(s): Beth Scheckelhoff , Author(s): Mike Sunderman , Author(s): Frank Thayer , Author(s): Kyle Verhoff , Author(s): Jacob Winters , Author(s): Kayla Wyse , Author(s): Curtis Young, CCA , Author(s): Andy Michel , Author(s): Kelley Tilmon

    We have just finished out our fourteenth week of monitoring at the Lep Network. This past week, we saw WBC numbers trending down and CEW numbers close to zero across the state.  Western bean cutworm numbers topped out with Sandusky County having the highest average by far of 38 moths. As for corn earworm, Putnam was the only county to report any CEW sightings for this past week and averaged 0.3 moths in the county. Western bean cutworm populations across Ohio have most likely hit their peak numbers of the season and a decline should be expected.

    Issue: 2024-24
More Newsletter Articles

Multimedia

Episode 144 – Dealing with DON
Agronomy & Farm Management Podcast Episode 144 – Dealing with DON

There is nothing more frustrating than getting rejected at the elevator due to high vomitoxin (aka DON) levels. DON is produced by a fungi produced on the ear and is usually infected at the time of pollination. To give farmers a better perspective of what happens behind the scenes at a grain elevator, we interview 3 grain merchandisers on their process when DON test levels start creeping up.
Agronomy & Farm Management Podcast Episode 144 – Dealing with DON
Agronomy & Farm Management Podcast Episode 144 – Dealing with DON

There is nothing more frustrating than getting rejected at the elevator due to high vomitoxin (aka DON) levels. DON is produced by a fungi produced on the ear and is usually infected at the time of pollination. To give farmers a better perspective of what happens behind the scenes at a grain elevator, we interview 3 grain merchandisers on their process when DON test levels start creeping up.
Season 2, Episode 16: Corn Diseases & Ear Rots
Season 2, Episode 16: Corn Diseases & Ear Rots

 

Dr. Pierce Paul from the Department of Plant Pathology discusses corn disease management and ear rots. Learn about a new tool in development to predict the risk of vomitoxin in corn.
Season 2, Episode 16: Corn Diseases & Ear Rots
Season 2, Episode 16: Corn Diseases & Ear Rots

 

Dr. Pierce Paul from the Department of Plant Pathology discusses corn disease management and ear rots. Learn about a new tool in development to predict the risk of vomitoxin in corn.
More Multimedia

Publications

  1. Abnormal Ear Diagnosis Poster, ACE-1

    Abnormal Ear Diagnosis Poster,  ACE-1. Farmers frequently encounter abnormal corn ears in their fields when the crop has experienced a major stress, such as drought, temperature extremes, disease, insect injury, or misapplied chemicals. These abnormalities often affect yield and grain quality adversely. In this poster, ten abnormal corn ears with distinct symptoms and causes are highlighted. The purpose of the poster is to help corn growers and agricultural professionals diagnose various ear disorders.

  2. Corn Disease Management in Ohio, Bulletin 804

    Corn Disease Management in Ohio, Bulletin 804. Five to 15 percent of Ohio's corn crop is lost to disease each year, amounting to nearly $100 million in lost farm income. Corn diseases include seedling diseases, leaf blights, stalk rots, ear and kernel rots, and viruses. This bulletin describes the disease symptoms, provides color images, gives the environmental factors favoring the disease, the method of transmission and infection, and management options for the major diseases affecting corn in Ohio.

  3. Corn, Soybean, Wheat and Alfalfa Field Guide, Bulletin 827
    06/2019

    Corn, Soybean, Wheat and Alfalfa Field Guide, Bulletin 827.Looking for a handy guide to take to the field to diagnosis various pest and production problems? This guide is the answer! You will want one of these guides in the truck and maybe a second in the tractor.

  4. Ohio Agronomy Guide 15th Edition, Bulletin 472
    04/2017

    Ohio Agronomy Guide 15th Edition, Bulletin 472. The newly revised Ohio Agronomy Guide serves as the official compilation of adaptive results and recommendations from research and educational programs. Described in this manual is information on Ohio's climate and soil, soil and water management, soil fertility, and corn, small grain, and forage crop production and management. Also, seed evaluation and weed control for the previously listed crops are discussed.

More Publications
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