University of Wisconsin
SCN is important in Wisconsin because:
- About 25% of Wisconsin’s soybean fields are infested with SCN with new finds every year.
- SCN has already spread to 57 counties so every field in Wisconsin has the potential to become infested.
- No farm in Wisconsin has been successful in eradicating SCN.
- Yield loss due to SCN has been documented in Wisconsin for over 25 years.
- The Wisconsin Soybean Marketing Board sponsors free soil testing for SCN.
SCN Management Recommendations
There are multiple tactics for managing SCN:
- Rotate soybean with other crops to break the SCN life cycle.
- Plant SCN-resistant varieties to reduce SCN reproduction.
- Shepherd host resistance to preserve its efficacy.
- Boost resistant varieties with an effective SCN seed treatment if needed.
- Rest fields from soybean if SCN population densities are very high.