2021
Phytophthora stem and root rot management: varieties and seed treatments
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Contributor/Checkoff:
Michigan Soybean Committee
Category:
Sustainable Production
Keywords:
Crop protectionDiseaseField management
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Martin Chilvers, Michigan State University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Michigan Soybean Committee
$30,000
Institution Funded:
Michigan State University
$30,000
Brief Project Summary:

Not much is known about Phytophthora sansomeana and the damage it may be causing in Michigan soybean fields. There are no known resistance genes to P. sansomeana, so understanding the effect of seed treatments is critical for control. Objectives of this project include: collecting Phytophthora sojae and P. sansomeana isolates from Michigan farms; determining P. sojae pathotypes using soybean differentials; determining host range and aggressiveness of P. sansomeana; determining in-vitro fungicide sensitivity of Phytophthora isolates to see if chemistries are effective and monitor for fungicide sensitivity shifts; determining in-field management of P. sojae and P. sansomeana with varieties and seed treatments.

Key Benefactors:
farmers, agronomists, plant pathologists, extension specialists

Information And Results
Project Deliverables

Research results will be distributed through field days, and extension meetings. A multi-state extension bulletin will be produced and made available through the Crop Protection Network www.cropprotectionnetwork.org and articles will be created for Michigan Soybean News and MSUE News for Ag. You-tube video’s will also be created to report results, and social media such as Twitter and Facebook will be used to relay take home messages to the Michigan agricultural community.

Final Project Results

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.