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Ohio State University Extension

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soybean cyst nematode

C.O.R.N. Newsletter Articles

  1. Use National Nematode Day as Your Reminder: Sample for SCN After Harvest

    Author(s): Horacio Lopez-Nicora

    National Nematode Day returns on October 6, 2025, and it serves as a timely reminder that the most damaging soybean pathogen in North America is often the one you don’t see. Soybean cyst nematode (SCN) continues to reduce yields in Ohio, even in fields without visible symptoms. The best way to stay ahead of this pest is to know your numbers, and post-harvest is the ideal time to sample.

    Issue: 2025-34

  2. Celebrate National Nematode Day and Collect a Soil Sample for SCN Testing

    Author(s): Horacio Lopez-Nicora

    National Nematode Day, October 1st

    Issue: 2024-34

  3. SCN and Soil Health Testing Opportunity for Ohio Growers

    Author(s): Horacio Lopez-Nicora , Author(s): Elizabeth Hawkins , Author(s): Dara Barclay

    Soybean cyst nematode (SCN) is a serious threat to soybean, and early detection is crucial to mitigating its impact on yields. The presence of SCN in a field, and more importantly, the SCN numbers, will determine the most effective management strategy. It is crucial, therefore, to test your fields and know your SCN numbers.

    Issue: 2024-15

  4. Done with Planting? Collect Soil Sample for SCN Test and Learn How Your Samples Are Processed in the Lab!

    Author(s): Horacio Lopez-Nicora

    The soybean cyst nematode (SCN) remains the most devastating and yield-limiting soybean pathogen in Ohio and North America.

    Issue: 2023-17

  5. Spring is in the Air and Soybean Cyst Nematode Doesn't Care: Take the Test. Beat the Pest!

    Author(s): Horacio Lopez-Nicora

    Distribution of SCN counts (eggs/100cc soil) in Ohio.The soybean cyst nematode (SCN) is the most economically important pathogen of soybean in North America and continues to spread throughout Ohio. If SCN levels are above damage threshold, significant yield reduction can often take place without visible symptoms.

    Issue: 2023-11
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