There are multiple tactics for managing SCN:

• Plant resistant varieties.
• Practice crop rotation.
• Rotate resistant cultivars.
• Control annual winter weeds proactively.
• Use nematicide seed treatments if high SCN populations are found in your field.

Soil testing tips:

• Where in the field? Low yielding areas, low spots/water-logged areas, field entrance, along with the fence line
• When? Any time provided the soil is not too wet or frozen
• How often? Every two soybean growing seasons
• Where should soil test samples be sent?
  • Nematode Testing Service: SDSU Plant Diagnostic Clinic
    SPSB 153, Box 2108
    Brookings, SD 57007-1090
  • (605 )688-5545 or (605) 688-4521

What to know about rotating different resistant varieties:

• Rotate cultivars with PI 88788 as a source of resistance genes with those of Peking and other sources.
• Rotate within PI 88788 cultivars.

What to know about rotating to non-host crops:

• Rotation with non-host crops such small grains and corn help to keep SCN populations low.
• Longer rotations (>2 years) away from soybeans are more effective.

Nematode-protectant seed treatments:

• Nematicide seed treatments do help protecting soybeans from early nematode infection.
• A higher return on investment is likely when SCN population density in the field is high >6000 eggs /100 cc of soil.