Iowa State University The Rust Report
Guideline table


a Determine risk by staying current with information from Extension specialists, trusted industry, and/or crop consultants. View the Soybean Rust ipmPIPE website frequently for updates.
b Soybean rust less than 10% of leaves infected.
c Premix, tank-mix, or co-pack fungicide should contain the full rate of triazole fungicide component.
d Application of a fungicide at ths level of disease may protect newly emerging leaves, but may not result in a yield benefit. Check with local Extension specialists for specific recommendations.