Project Details:

Aspects of integrated management for viruses and infection Phomopsis in soybean

Parent Project: This is the first year of this project.
Checkoff Organization:Iowa Soybean Association
Categories:Nematodes, Insects and pests
Organization Project Code:
Project Year:2009
Lead Principal Investigator:Gary Munkvold (Iowa State University)
Co-Principal Investigators:
Jeff Bradshaw (Iowa State University)
John Hill (Iowa State University)
Matthew O'Neal (Iowa State University)
Palle Pedersen (Iowa State University)
Alison Robertson (Iowa State University)
Show more

Contributing Organizations

Funding Institutions

Information and Results

Click a section heading to display its contents.

Project Summary

Soybean viruses, bean leaf beetles, soybean aphids and Phomopsis spp. all affect soybean seed quality in addition to causing yield loss. The goal of this project is to understand the interactions between soybean viruses (Soybean mosaic virus and Bean pod mottle virus) and Phomopsis spp. (cause of pod & stem blight and Phomopsis seed rot), and to suggest improved crop management practices for soybean viruses and Phomopsis spp. There is some evidence that virus infection predisposes soybean plants to Phomopsis infection; and insect vector activity may also directly affect Phomopsis colonization of soybean pods and stems. The results of this project should be useful for integrating the management of these interacting pests and diseases.

Project Objectives

1. Assess the effects of Bean pod mottle virus and Soybean mosaic virus infection on susceptibility of soybean plants to infection by Phomopsis spp.
2. Determine the impact of bean leaf beetle and soybean aphid management on infection of soybeans by Phomopsis spp.
3. Evaluate fungicide application timing for reduction of Phomopsis infection and effect on soybean yield and quality, and assess the integration of insecticide and fungicide application programs.
4. Determine potential seed transmission mechanisms for Bean pod mottle virus.

Project Deliverables

Progress of Work

Final Project Results

Benefit to Soybean Farmers

Performance Metrics

Project Years