Foliar Fungicide Use in Corn

Foliar (leaf) diseases can occur anywhere corn is grown in North America, but are more common in the warmer, more humid growing areas of the South and East. Integrating several tactics, including selecting resistant hybrids and reducing previous corn residue, is usually the most successful approach to managing these diseases. In addition, application of fungicides may be profitable on more susceptible hybrids when severe disease outbreaks occur. This article will describe the major foliar diseases on corn and the conditions under which fungicide use should be considered as a disease management tool.

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