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The most common soybean disease problem in Nebraska is seedling damping off and seed rot caused by several fungi. Early season damping off and root rots are often followed by premature death, which in many instances may be attributed to fungal infections earlier in the season.
This NebFact discusses the seed treatment fungicides for soybeans. These includes protectants (contacts) that are effective only on the seed surface; and systemic fungicides that are absorbed by the emerging seedling, which inhibit or kill the fungus inside host plant tissues.