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Evaluation of Two Fungicide Application Methods

Applied Research

Chris Zoller
ASSOCIATE PROFESSOR & EXTENSION EDUCATOR ANR
Ohio State University Extension Tuscarawas County
New Philadelphia

Abstract

     On-farm research trials in 2022 evaluated two fungicide application methods, aerial and ground, on corn to determine any differences in yield, plant health, and economics.  The study was a random design with a minimum of three replications.  Corn seeding rate at site one was 33,000 seeds per acre and 35,500 seeds per acre at site two.  Site one was a 100 acre no-till field planted on May 15 and harvested on November 4.  Site two was a 103 acre no-till field planted on May 13 and harvested October 29.  Visual assessments were completed throughout the growing season to monitor plant growth and disease development.  Fungicide was applied in late July at both sites.

     Yield data was collected at each site using a calibrated yield monitor.  At site one, the aerial application averaged 243 bushels per acre, the ground application averaged 239 bushels per acre.  The control, where no fungicide was applied, averaged 198 bushels per acre.  A statistical analysis using Fisher’s Protected Least Significant Difference (LSD), tested at 0.1, was 7, with a CV of 2.3%.  There was no statistical difference between application methods.  There was a statistical difference between application methods and the control.  At site two, the aerial application averaged 211 bushels per acre and the ground application averaged 214 bushels per acre.  No control was used at this site.  The LSD, tested at 0.1, at this site was 8, with a CV of 1.6%.  There was no statistical difference between application methods.  An economic analysis revealed the aerial application at site one was $3.78 less per acre than the ground application.  At site two, the ground application was $4.00 less than the aerial application.  The results from 2022 indicate that both application methods are effective, and economics is the main factor to be used in selecting an application method.  

Poster has NOT been presented at any previous NACAA AM/PIC

This poster is being submitted only for display at AM/PIC. Poster is not to be judged, but the abstract will be published in the proceedings.

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Authors: Rob Leeds, Jacci Smith, Chris Zoller
  1. Leeds, R. ANR Educator, Assistant Professor, Ohio State University Extension - Delaware County, Ohio, 43015-1707
  2. Smith, J. Extension Educator, ANR/4-H Youth Development, Ohio State University Extension - Delaware County, Ohio, 43015-1707
  3. Zoller, C. Extension Educator, ANR, Ohio State University Extension - Tuscarawas County, Ohio, 44663