CORN Newsletter

Corn Newsletter
May 19 – May 25
Editor: Beth Scheckelhoff

Warmer Weather, Finally!

Author: Aaron Wilson

As recently as last Wednesday and Thursday (May 13-14), some locations across Ohio had morning lows dipping down to near or below freezing (Figure 1).

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Scab Risk Low, but Keep Your Eyes on Leaf Diseases

Author: Pierce Paul

According to the FHB forecasting system, the risk for head scab continues to be low across the state of Ohio, for wheat flowering (or barley heading) today, May 18. In spite of the wet weather we have had, it has been very cold over the last week to 10 days.

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Field Estimations of Alfalfa Fiber Content

Authors: Angela Arnold, Mark Sulc, Jeff Stachler, Will Hamman, Dean Kreager

Ohio has seen its 5th warmest winter on record but spring temperatures across the state have consistently been 2-6° F below long-term averages. Climatic variations every year make it difficult to know the exact date to determine harvest of our first alfalfa crop.

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Alfalfa Weevil Update

Authors: Kelley Tilmon, Aaron Wilson, Mark Sulc, Rory Lewandowski, CCA, Andy Michel

Peak alfalfa weevil feeding damage occurs between 325 and 575 heat units (based on accumulation of heat units from January 1 with a base of 48°F).  All monitored locations are now in or close to this range except Ashtabula.  We recommend alfalfa weevil scouting as regular part of your program.  F

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Ohio Corn, Soybean and Wheat Enterprise Budgets – Projected Returns for 2020

Author: Barry Ward

COVID-19 has created an unusual situation that has negatively affected crop prices and lowered certain crop input costs. Many inputs for the 2020 production year were purchased or the prices/costs were locked in prior to the spread of this novel coronavirus.

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June 23
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About C.O.R.N. NewsletterC.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.
Glen Arnold, CCA
Field Specialist, Manure Nutrient Management
Mark Badertscher
Hardin County
John Barker
Knox County
Lee Beers, CCA
Trumbull County
Ben Brown
Farm Management Program Mgr, Program Manager
Bruce Clevenger, CCA
Defiance County
Rachel Cochran
Extension Associate
Trevor Corboy
Greene County
Sam Custer
Darke County
Wayne Dellinger
Union County
Anne Dorrance
State Specialist, Soybean Diseases
Nick Eckel
Water Quality Associate
Mike Estadt
Pickaway County
Boden Fisher
Extension Associate
Ken Ford
Fayette County
Allen Gahler
Sandusky County
Mike Gastier, CCA
Huron County
Mary Griffith
Madison County
Will Hamman
Pike County
Jason Hartschuh, CCA
Crawford County
Elizabeth Hawkins
Field Specialist, Agronomic Systems
Andrew Holden
Ashtabula County
Stephanie Karhoff
Williams County
Dean Kreager
Licking County
Greg LaBarge, CPAg/CCA
Field Specialist, Agronomic Systems
Alan Leininger
Program Assistant
Ed Lentz, CCA
Hancock County
Rory Lewandowski, CCA
Wayne County
Mark Loux
State Specialist, Weed Science
David Marrison
Coshocton County
Andy Michel
State Specialist, Entomology
Brigitte Moneymaker
Extension Associate
James Morris
Brown County
Gigi Neal
Clermont County
Sarah Noggle
Paulding County
Tony Nye
Clinton County
Les Ober, CCA
Geauga County
Pierce Paul
State Specialist, Corn and Wheat Diseases
Eric Richer, CCA
Fulton County
Dennis Riethman
Mercer County
Matthew Romanko
Extension Associate
Mary Ann Rose
Program Director, Pesticide Safety Education
Garth Ruff
Henry County
Matt Schmerge
Shelby County
Clint Schroeder
Allen County
Jeff Stachler
Auglaize County
Mark Sulc
State Specialist, Forage Production
Barry Ward
Program Leader
Harold Watters, CPAg/CCA
Field Specialist, Agronomic Systems
Aaron Wilson
Byrd Polar & Climate Research Center
Ted Wiseman
Perry County
Curtis Young, CCA
Van Wert County
Chris Zoller
Tuscarawas County
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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