There are multiple tactics for managing SCN:

• Crop rotation with non-host crops is the primary management practice
• Soybean variety rotation for resistance to nematodes
• Nematicide options
• Sanitation
• Improving plant health through good crop management (i.e. fertility, avoiding compacted soils)

Soil testing tips:

• Sample in areas with poor yields and stunted plants
• Sample after harvest in the fall
• Sample every 2-3 years as preventive care, or annually if you have nematodes
• Mail samples to:
  • Plant Diagnostic Laboratory
    ALFA Services Building
    961 South Donahue Drive
    Auburn University, AL 36849-5624
  • A $10.00 fee is required for each sample

What to know about rotating different resistant varieties:

• Know if your fields have SCN, Root knot, or Reniform nematodes
• Alternate use of varieties that contain SCN resistance — even if it’s from the same genetic source

What to know about rotating different sources of resistance:

• Soybeans have SCN resistance from one of three genetic sources — Peking, PI 88788 or PI 437654 (Hartwig or CystX)
• Rotate them to improve long-term management of SCN
• SCN resistance does not give you control of Root knot nematodes

What to know about rotating to non-host crops:

• Non-host crops are best for lowering nematode populations
• Cotton and corn are not hosts for SCN
• Corn, grain sorghums, and peanuts are not a host for reniform nematodes

Nematode-protectant seed treatments:

• Avicta Complete Bean combines a nematicide with a fungicide and insecticide. Effective on all nematodes.
• Ilevo is a nematicide/fungicide. Effective on all nematodes and SDS.
• Poncho/Votivo is a biological with a chemical insecticide. Effective on all nematodes.
• Clariva Complete Bean is a biological with a fungicide and insecticide but is effective on SCN only.

Other “need to knows” about SCN:

• If you do not have nematodes in a field, keep it clean.
• Do not move farm equipment from an SCN-infested field to a non-infested field without thoroughly cleaning (i.e. pressure washing) the equipment.
• Nematodes cannot be eliminated, but they can be managed.