Figure 1. Early foliar symptoms of red crown rot in soybean are observed July 17, 2025, in Madison and Macoupin counties of Illinois. Symptoms…

Figure 2. Advanced foliar symptoms of red crown rot in soybeans show pronounced interveinal necrosis.

Figure 3. Red perithecia of Calonectria ilicicola, the causal agent of red crown rot, form on the surface of an infected soybean stem. The spo…

Figure 4. Timing of red crown rot symptom development in soybeans is shown relative to crop growth stages

Figure 5. Counties with past confirmed reports of red crown rot of soybeans are shown.

Figure 6. Example of a remote-sensing classification map shows areas predicted to be affected by red crown rot, highlighted in orange, overlai…