2026 Field crop disease outlook and resources

About this episode

This episode discusses the outlook for field crop diseases in 2026, focusing on southern rust and tar spot, along with valuable resources for crop protection.

In this episode of Talking Crop, Dr. Alison Robertson, Professor of Plant Pathology and Microbiology and Extension Field Crops Pathologist with Iowa State University, and host, Kathryn Seebruck, discuss southern rust, tar spot, and the invaluable field crop disease resources from the Crop Protection Network. Will southern rust be a problem on corn in 2026? Statewide evaluation of foliar fungicides on corn in Iowa in 2025 Crop Protection Network resources: Assessing crop risks Fungicide ROI calculator Fungicide efficacy tool Southern rust of corn map University of Illinois Field Crop Disease and Insect Management Applied Research Report Guest contact: alisonr@iastate.edu Host contact: seebruck@illinois.edu | (815) 986-4357

People in this episode

Host: Kathryn Seebruck

Guest: Dr. Alison Robertson

Topics covered

• field crop diseases
• southern rust
• tar spot
• fungicide evaluation
• crop protection resources

Keywords

• field crop disease
• southern rust
• tar spot
• fungicide
• Crop Protection Network

Mentioned in this episode

Organizations: Iowa State University, Crop Protection Network, University of Illinois

Places: Iowa

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• 2026 Agronomy Summit - Dan Smith · January 19, 2026 · 17 min
• 2026 Agronomy Summit - Kathryn Seebruck · January 16, 2026 · 15 min
• 2026 Agronomy Summit - Mark Kendall · January 14, 2026 · 17 min