Management of soybean white mold requires adoption of an integrated package of practices for disease control. Management practices interact with the white mold pathogen at every stage of the fungal life cycle.
Soybean Crop Management Interaction with Sclerotinia Stem Rot
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Integrated Management Strategies
No single management practice or variety can be relied on to control white mold. Instead, control of white mold requires application of a combination of management practices to be most effective.
An example of the effectiveness of combinations of variety selection and management practices can be seen in the University of Wisconsin-Madison's on-farm study examining crop rotation, tillage, and variety selection as tactics for limiting losses to white mold. Planting a more resistant variety (S19-90) substantially reduced white mold incidence.
Crop rotation with barley or oats further reduced white mold incidence when compared with continuous planting of soybeans or planting of soybean following corn.
Combining disease-reducing management practices with variety selection is the most economical and effective means of limiting soybean yield loss to white mold.
Effective strategies for control of white mold are as follows:
- Plant resistant varieties.
- Plant in wider rows (15 or 30 inch).
- Plant at lower populations,(160,000 plants per acre).
- Rotate soybean with non-host crops.
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URL: http://www.soybeans.umn.edu/crop/diseases/whitemold/white_mold_mgmnt.htm
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