Total herbicide program cost for corn averages $55–$90 per acre in 2026. Resistance pressure drives the high end; low-resistance fields with proven programs can stay under $60/acre.
A basic atrazine + acetochlor pre-emergent ($18–$25/acre) plus one generic glyphosate post-emergent pass ($2–$4/acre) covers most corn acres at $20–$30/acre. Resistant weed programs requiring multiple post-emergent premixes run $70–$100/acre.
| Program | Cost/acre | vs. 2025 |
|---|---|---|
| Atrazine + acetochlor PRE only | $18–$25 | +6% |
| PRE + glyphosate POST basic | $22–$32 | +5% |
| PRE + multi-MOA POST premix | $55–$90 | +10% |
| Full resistance-pressure program | $80–$110 | +12% |
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