This Week on N Field: Corn Smut on Leaves

July 17, 2026

Hands pointing at corn leaves with smut growth, text overlay, and a university logo.
Hail, heat and disease pressure are converging in Nebraska corn. Learn what to look for during your next scouting trip.

July hail has left some Nebraska corn fields vulnerable to disease. In this episode, Tamra Jackson-Ziems explains why Goss's wilt often develops after hail injury, how to recognize corn smut on leaves, ears and tassels, and what to expect as hot weather influences tar spot development. She also highlights tools that can help growers stay informed.

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A product of Nebraska Extension, N Field Observations is a weekly podcast where UNL professionals share their field observations in brief segments, highlights specific topics and issues occurring in agriculture.

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