Source: Kiersten Wise and Jennifer Stewart, Purdue University

Controlling crop diseases starts with keeping accurate field records even before the seeds are planted and continuing through harvest, a Purdue Extension specialist advises.

The majority of yield-limiting diseases can be managed most effectively through good selection of seed varieties, said crop specialist Kiersten Wise. Producers should work with seed dealers to choose varieties that have strong resistance to previously recorded diseases.

"Good disease management starts with knowing what diseases are already present in the field," Wise said. "For example, the fungus that causes sudden death syndrome in soybeans survives in the soil and can affect the next soybean crop if conditions are favorable for disease development."

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