Fungicide application in corn costs $26–$50 per acre total (product + application) in 2026. Tar spot and gray leaf spot pressure are the primary triggers. ROI averages 8–12 bu/acre in high-pressure years.
Corn fungicide product (Trivapro, Miravis Ace) costs $22–$30/acre applied at VT/R1. Aerial application adds $8–$12/acre; ground application $5–$8/acre. At corn prices of $4.50/bushel and 10 bu/acre response, the break-even cost is $45/acre.
| Component | Cost/acre | vs. 2025 |
|---|---|---|
| Trivapro at VT/R1 | $23–$30 | +7% |
| Aerial application | $8–$12 | +5% |
| Ground application | $5–$8 | +4% |
| Total fungicide budget | $28–$42 | +6% |
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