Across Wisconsin in 2009, the number one soybean disease observed was Sclerotinia stem rot (SSR), or white mold. Weather conditions around flowering were quite favorable for infection and subsequent development of SSR in 2009 (Figure 1). In Figure 2, we show examples of differences in symptoms we observed throughout the state for SSR and these symptoms will be discussed in more detail in the next section.
Soil Science Extension
University of Wisconsin Madison