Disease management is necessary in any crop to protect yield. An integrated approach using several practices is usually recommended. In corn production, the most commonly recommended disease management tactics include hybrid selection, rotation, residue management, and fungicide applications. In corn-on-corn fields, since rotation is not being practiced, the potential for yield loss due to increased disease is greater.
Iowa State University
Robertson, Alison E. and Munkvold, Gary P., "Disease management in corn-following-corn fields" (2007). Integrated Crop Management News. 1156.
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