 So no manganese level is low or even medium, add more manganese as this element is important for plant tolerance to white mold. Next, use contans in the fall right after soybean harvest. Spray it just where white mold was bad this year so the next time that you rotate back to a susceptible crop, the contans has disintegrated the white mold sclerotia. Rapid fire now. Pick a more tolerant seed variety. Plant in wider rows. Cut your planting population.