2014
Virulent types of soybean cyst nematode in North Dakota
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Contributor/Checkoff:
North Dakota Soybean Council
Category:
Sustainable Production
Keywords:
Crop protectionDiseaseField management
Parent Project:
Managing Sclerotinia in soybean with Contans and Sporidesmium sclerotivorum
Lead Principal Investigator:
Berlin Nelson, North Dakota State University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
North Dakota Soybean Council
(n/a)
Institution Funded:
North Dakota State University
(n/a)
Brief Project Summary:

Soybean Cyst Nematode (SCN; caused by Heterodera glycines) is the most important soybean disease in the United States. In August 2003, SCN was discovered in North Dakota. At least 12 counties are now known to be infested, all the way from Richland to Pembina Counties. The nematode is spreading in the state.

Unique Keywords:
#soybean cyst nematode (scn), #soybean cyst nematode - management, #soybean diseases
Information And Results
Final Project Results

Thus far, the HG type for 11 fields has been determined, and they were all HG type 0. Testing populations from the other fields is still in progress. Some of these fields have been infested with SCN for 8 to 10 years and have been in production with SCN-resistant soybean cultivars. Thus far, we have not found evidence for a virulence shift in the fields tested, however, more fields need to be tested for a more accurate examination of virulence changes. Additional infested fields were sampled in 2014.

This information will be useful to soybean growers who use host resistance as the primary management tool for SCN. Evidence about a shift in virulence will alert growers that different sources of host resistance may be needed to manage SCN in the area.

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.