2015
Understanding the role of fungicide programs on soybean health and charcoal rot development
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Contributor/Checkoff:
North Central Soybean Research Program
Category:
Sustainable Production
Keywords:
Crop protectionDiseaseField management
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Kiersten Wise, Purdue University
Co-Principal Investigators:
Daren Mueller, Iowa State University
Christopher Little, Kansas State University
Martin Chilvers, Michigan State University
Emmanuel Byamukama, South Dakota State University
Damon Smith, University of Wisconsin
+4 More
Project Code:
Contributing Organization (Checkoff):
North Central Soybean Research Program
(n/a)
Institution Funded:
Purdue University
(n/a)
Brief Project Summary:

Charcoal rot, caused by Macrophomina phaseolina, is a disease of growing importance in the North Central Region; yet current management options are limited. In addition, this disease is more severe when plants are stressed by heat and dry conditions. New fungicide programs and fungicide products are marketed to reduce plant stress, but these products and programs have not been evaluated to determine their impact on charcoal rot development and yield. The goal of this research is to understand under what conditions fungicides may reduce plant stress and yield loss due to charcoal rot so that we may improve our recommendations to farmers interested in using fungicides to mitigate plant...

Unique Keywords:
#charcoal rot, #foliar fungicides, #macrophomina phaseolina, #soybean diseases
Information And Results
Project Deliverables

Integrate research findings in NCSRP charcoal rot Extension materials.

Final Project Results

Members conducted research trials in 2014 across multiple environments. Research indicated that fungicide seed treatment products varied in efficacy and some products may reduce final colonization rates of M. phaseolina compared to the non-treated control.

Fungicides applied in-furrow may reduce populations in some environments, but not others, and the result of in-furrow applications on final yield was inconsistent.

Research indicates foliar fungicides applied at any timing between V4 and R5 did not significantly impact plant stand, fungal colonization, or improve yield compared to the non-fungicide treated control.

Results indicate foliar fungicides applied to reduce plant stress and manage charcoal rot would not provide a consistent economic benefit.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.