The Ohio State University College of Food, Agricultural, and Environmental Sciences
C.O.R.N. Newsletter
OSU Extension
Ohio State ATI
Editor: Chris Zoller

Wetter Conditions Remain Favored into Spring

Author: Jim Noel

The outlook for February calls for near normal temperatures after the warm start with normal to above normal rainfall. That was the only change in the outlook. February looks wetter than a few weeks ago. Rainfall the next two weeks will average 1-4 inches across the state.

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Overwintering of Pathogens and Insects - What do Winter Temperatures Tell Us About Next Season?

Authors: Anne Dorrance, Kelley Tilmon, Andy Michel

Over the years we have developed databases of winter temperatures followed by scouting to indicate starting pathogen populations for Ohio.

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Tar Spot of Corn

Authors: Pierce Paul, Felipe Dalla Lana da Silva

Tar Spot, a new disease of corn caused by the fungus Phyllachora maydis, was reported for the first time in Ohio at the end of the 2018 growing season.

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Yield Survey Results Released

Authors: Elizabeth Hawkins, Aaron Wilson, Alexander Lindsey, Laura Lindsey, John Fulton

2019 was a growing season that will stick in our memories for years to come. Figure 1 shows the accumulated precipitation compared to normal conditions across Ohio for April and May 2019.

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Are Sulfur Deficiencies Becoming More Common in Ohio?

Authors: Laura Lindsey, Steve Culman

Sulfur is an essential macronutrient for crop production, often ranked behind only nitrogen, phosphorus, and potassium in importance. Overall, for corn and soybean, deficiencies are fairly rare.

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Learn More about eFields at Regional Meetings

Author: Elizabeth Hawkins

Have you been enjoying the 2019 eFields Report and are excited to learn more? The Ohio State Digital Ag team is hosting six regional eFields meetings this winter. Join us to learn more about the eFields program and results we are seeing across the state.

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H2Ohio Meetings Scheduled for February

Author: Glen Arnold, CCA

The Ohio Department of Agriculture is rolling out the H2Ohio plan this month at eight meetings in the Maumee River Watershed.

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Fertilizer Applicator Certification Training

Authors: Mark Badertscher, Wayne Dellinger, CCA

A three-hour fertilizer certification program will be held in Richwood for any private or commercial applicator who needs to obtain fertilizer certification for the first time.  This training will be held at Richwood Marketing, 15 E.

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2020 Agronomy School: The Nuts & Bolts of Corn & Soybean Production

Author: John Barker

 The 2020 Central Ohio Agronomy School will be held on Monday evenings, beginning on Monday February 10 through Monday March 9, from 6:30 –9:00 p.m. in the conference room of the Ag Services Building, 1025 Harcourt Rd. Mt.

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February 6
2020 Allen County Ag Outlook and Agronomy Day
February 17
Hemp Production and Marketing Opportunities
About C.O.R.N. Newsletter

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.

Sam Custer
Educator, Agriculture and Natural Resources
Amanda Douridas
Educator, Agriculture and Natural Resources
Mike Gastier, CCA
Educator, Agriculture and Natural Resources
Jason Hartschuh, CCA
Educator, Agriculture and Natural Resources
David Marrison
Educator, Agriculture and Natural Resources
Sarah Noggle
Educator, Agriculture and Natural Resources
Eric Richer, CCA
Educator, Agriculture and Natural Resources
Dennis Riethman
Educator, Agriculture and Natural Resources
Garth Ruff
Educator, Agriculture and Natural Resources
Jeff Stachler
Educator, Agriculture and Natural Resources

The information presented here, along with any trade names used, is supplied with the understanding that no discrimination is intended and no endorsement is made by Ohio State University Extension is implied. Although every attempt is made to produce information that is complete, timely, and accurate, the pesticide user bears responsibility of consulting the pesticide label and adhering to those directions.

CFAES provides research and related educational programs to clientele on a nondiscriminatory basis. For more information, visit For an accessible format of this publication, visit

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