Improved management of soybean white mold: Revisiting genetic resistance, integrated management and disease prediction
2021
- Department of Plant Pathology, UW Madison
- Department of Plant Pathology, UC Davis
- Department of Plant Pathology and Microbiology, Iowa State
- Department of Plant, Soil and Microbial Sciences, Michigan State
- Department of Agronomy
Project Media
The fungal pathogen Sclerotinia sclerotiorum, causes the disease Sclerotinia stem rot (SSR; a.k.a.
white mold) of soybean. This disease can cause severe losses under highly conducive conditions
throughout the Upper Midwest (Roth et al., 2020). As a result, there is large interest in understanding the
most effective methods of controlling SSR. This includes the use of cultural and chemical control
methods in an integrated approach. In previous research, the use of wider row spacing (30 inches) resulted
in decreased levels of disease while narrow row spacing (10 and 15 inches) increased disease (Grau and
Radke, 1984). Additionally, research showed the use of planting populations above 175,000 seeds/acre
resulted in increased disease incidence compared to lower populations (Lee et al., 2005).