Northern Corn Leaf BlightCORN023.JPG

Northern corn leaf blight

Area of impact: Leaves

Description: Cigar-shaped gray or green lesions about 3 cm to 15 cm long.

Pathogen involved: Setosphaeria turcica (a fungus)

Timing/Conditions: Occurs at or after silking during warm and extended periods of wet weather.

Contributing factors: Moderate temperatures and long periods of dew. Overwinters on corn debris.

Management practices: Use resistant hybrids and fungicides.

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