Soybean Disease Risk Maps
August 16, 2026
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For period of Aug 15 – Sept 13, Date of Issue: Aug 16, 2026
CLICK ON DISEASE FOR RISK FORECAST
One-Month Weather Outlook
In the next 30 days, the North will have an equal chance of having above- or below-average temperatures. Expect below-normal rainfall until the end of August, then changing to above-normal rainfall in September. In the next 14 days, expect above-average temperatures for the entire North, with normal to below-normal rainfall.
White Mold Risk Summary
Risk of white mold is not a concern after crops have passed the flowering stage. There are likely areas where flowers still exist, and risk remains.
Next two-week risk interpretation
If there are flowers within the middle of the canopy in late-planted soybeans, conditions are moderately to highly favorable for this disease in the Great Lakes region. Scout fields that still have flowers, looking for sclerotia and apothecia. For the most part, a fungicide will not have a positive ROI at this time. If sclerotia and apothecia are found, consult with an agronomist.
ONE-MONTH RISK MAP
Disclaimer
ALWAYS READ AND FOLLOW GRAIN MARKETING AND ALL OTHER STEWARDSHIP PRACTICES AND PESTICIDE LABEL DIRECTIONS.