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Manage White Mold

Top Ways To Manage Soybean White Mold

Adapted from Ag PhD Radio Show

While there is no silver bullet approach for eliminating white mold, it can be effectively managed through a multiple step process to help limit yield loss. Below is a summary of the top practices for managing white mold both prior to and post planting:

Prior to Planting

  • Crop Rotation: rotate non-host crops; longer crop rotations with non-susceptible crops like corn will help reduce the level of inoculum (sclerotia) in the field.

  • Land Selection: select fields with good drainage/plant in your fields which do not have a history of white mold.

  • Variety Selection: ask your seed dealer for a white mold tolerant seed variety.

  • Consider lowering plant population: some studies have shown lower plant populations can help reduce white mold incidence by encouraging airflow.

  • HAVE YOUR SEED DEALER APPLY HEADS UP® – The first EPA registered seed treatment for white mold and SDS, Heads Up® offers a systemic, full season approach to help suppress white mold throughout the growing season. For more information on Heads Up®, click here.

Post Planting

  • Consider using a fungicide at the R1 – R3 growth stages.

  • Consider a biofungicide in areas with a history of white mold (such as low/wet spots in the field).

Post Infection

  • Make notes of highly infected areas for future planting consideration.

  • Try to eliminate spreading the white mold sclerotia (survival structure) by harvesting heavily infected fields/areas last.

Make sure you’re thinking about your white mold strategy ahead of time!