Project Details:

Evaluation and development of a biological control product to control SDS and white mold

Parent Project: This is the first year of this project.
Checkoff Organization:North Central Soybean Research Program
Categories:Soybean diseases
Organization Project Code:
Project Year:2014
Lead Principal Investigator:X B Yang (Iowa State University)
Co-Principal Investigators:
Shrishail Navi (Iowa State University)
Youfu Zhao (University of Illinois at Urbana-Champaign)
Carl Bradley (University of Kentucky)
James Kurle (University of Minnesota)
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Keywords: Biocontrol, Sclerotinia Stem Rot (SSR), Soybean Product Testing, Sudden Death Syndrome (SDS), White Mold Management

Contributing Organizations

Funding Institutions

Information and Results

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Project Summary

Private industry has made significant progress in the development of biological fungicides for row crops. The goal of this proposal is to evaluate the effectiveness of potential biological control products on sudden death syndrome (SDS) and white mold, two of the most important fungal diseases of soybean.

Project Objectives

1. Conduct multi-state field evaluations of fungal biological control agents effective against soybean sudden death syndrome (SDS) and white mold.
2. Investigate the effectiveness of a bacterial bio-control agent in controlling Fusarium virguliforme, the causal agent of SDS and/or Sclerotinia sclerotiorum, the causal agent of white mold.
3. Determine if biocontrol agents applied to crop residues of corn, alfalfa, or soybean can reduce inoculum production, infection, or disease incidence caused by F. virguliforme and S. sclerotiorum.
4. Study how crop rotation affects the effectiveness of biocontrol agents/biofungicides.

Project Deliverables

Progress of Work

Final Project Results

Efforts were made to evaluate biological control products against SDS and white mold by establishing multiple locations in Iowa, Illinois and Minnesota. Multiple field trials were established in Iowa, Illinois and Minnesota in 2013 to evaluate biological control products for their effectiveness against SDS and white mold treatments were made on production farms with strip plots or on university farms of the participating states. Treatments were made on production farms with strip plots or on university farms of participating states. Yield data from university farms have been collected and analyzed. Yield data from commercial farms are being analyzed. Results on yield data from university farms show that plots treated with biological control product(s) had less disease and higher yields compared to control. Remote sensing images taken for plots on commercial farms where treatments had applied showed differences between treated area and adjacent area (control).

The data is encouraging in that 2013 was a season with delayed planting, which was unfavorable to SDS and several other soil borne diseases, suggesting the differences could be greater in years favorable to soiborne diseases.

Green house experiments were carried in both Iowa State University and University of Illinois to determine the effects of bacterium strain on the reduction of soybean sudden death syndrome. Significant progress has been made. In 2014, we have made plan to repeat similar field experiments which will be carried in all three states.

Benefit to Soybean Farmers

Performance Metrics

Project Years