| Hick - 10/18/2025 12:25 We are on 22” and have horrible white mold problems compared to the neighbors who are on 30. I also spread cattle manure but never before beans. Dropped the population to 120,000 to help alleviate the problem.
Ground that has white mold problems will have white mold problems (when the weather is conducive) regardless of 15”, 20”, 22” or 30” rows. I’ve seen 30” rows with worse white mold next to 20” rows with less white mold. Visible to the row.
There’s several factors that are more important than row spacing for reducing white mold pressure. Reducing population is one, leaving ground cover to reduce rain splash is another, variety is huge, Cobra helps, longer rotation between bean crops is another big one.
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20 vs 30" corn
