Purdue University
SCN is important in Indiana because:
- Indiana grows 5.9 million acres of soybean annually.
- SCN has been reported in at least 89 of the 91 Indiana counties with an estimated of 45% of the fields infested.
- A 50% yield loss is possible in highly infested fields.
SCN Management Recommendations
There are multiple tactics for managing SCN:
- SCN symptoms can easily be confused with other problems such as nutrient deficiencies, herbicide injury, other diseases, poor drainage, etc.
- Oblong areas of stunted, yellowed plants is suggestive of SCN damage.
- Infected plants generally have poorly developed roots and few nodules.
- Scout/sample field to determine those that are infested with SCN and population number.
- Rotation with non-host crop is the simplest and least expensive method to reduce SCN population.
- SCN resistant varieties are available and should be used in a management program.