Fungicide vs Nutrition Programs in Corn: ROI Comparison
Key Insight
In low disease years:
Fungicide: negative ROI (-$1.78/ac)
Nutritional programs: yield improvement but still cost sensitive [2025 DIRT Book (1) | PDF]
What This Means
Fungicides are situational tools
Nutrition programs drive baseline yield stability
Conclusion
Don’t default to fungicides—base decisions on conditions.