White Mold of Soybeans | AgriGold

White Mold

Disease Cycle:

The fungus, Sclerotinia Sclerotiorum, can overwinter for several years in the soil as sclerotia. From these, mushroom like structures will emerge to produce ascospores which infect a soybean during R1 as flowers senesce. A white, fuzzy growth with embedded black sclerotia eventually colonizes the stems and nodes during R3-R6 stage.

White Mold JC-2-316x564
Favorable Conditions:
Cool, wet & high relative humidity are ideal conditions for White Mold to thrive. Although poor airflow within the crop canopy could accelerate spread of the disease throughout.


  • Soybean Variety Selection
  • Preventive Application of Fungicide & Biological
  • Implement Good Cultural Practices
  • Reduce Irrigation During Flowering

Reach out to your local AgriGold Key Account Specialist or AgriGold Agronomist if you have questions.