Part 3 · Foliar Fungicide/Insecticide Field Trial · Soybeans2026 Local Research Results
Soybean Field Trial: 31EJ82 with Fungicide/Insecticide Yielded 7.4 Bu/Ac More.
Foliar Fungicide/Insecticide vs. Non-Treated at field scale, Danforth N160. Revytek fungicide + bifenthrin insecticide applied July 15 on four 120-ft passes. Only Stine 31EJ82, the variety on the non-treated side, is compared.
removed in cleanupfungicide/insecticide or strip-till areatrial-area boundary2935E · not compared
Fungicide/insecticide 480 ft (shaded) and the next 480 ft non-treated. Colored points are 31EJ82 as planted; the west half of the treated passes was planted to 2935E and is not compared.
Stine 31EJ82 (Victrato) · yield monitor| Area | Yield, bu/ac | Moist. | Acres | Points |
|---|---|---|---|---|
| Fungicide/insecticide · 480 ft | 75.6 | 11.4% | 3.5 | 1,549 |
| Non-treated · next 480 ft | 68.2 | 11.5% | 8.4 | 3,884 |
| Non-treated · whole strip | 69.9 | 11.9% | 16.7 | 7,907 |
+7.4bu/ac
fungicide/insecticide − next 480 ft
+5.7bu/ac
fungicide/insecticide − whole strip
Revenue difference
+$93/ac+7.4 bu × $12.62
Est. return after $35
+$58/acSame variety on both sides, matched to the planting record rather than the combine’s variety label. Left out: 1,495 treated points on 2935E ground or on a pass straddling the variety line, and 328 non-treated points on the 2935E headland at the south end.
31EJ82 difference with a 30 / 60 / 90 ft edge buffer: +6.4 / +7.4 / +7.3 bu/ac
Scale weights · weigh wagon · 31EJ82 both strips
| Area | Yield, bu/ac | Moist. | Net lb | Bushels | Acres |
|---|---|---|---|---|---|
| Non-treated · 180 ft | 76.7 | 11.5%* | 34,520 | 575.3 | 7.50 |
| Fungicide/insecticide · 180 ft | 83.5 | 11.4%* | 37,560 | 626.0 | 7.50 |
Scale difference: +6.8 bu/ac (fungicide/insecticide · 180 ft − non-treated · 180 ft). Net weight ÷ 60 lb/bu ÷ acres. *Moisture wasn’t recorded at the scale; shown from the yield monitor on the same strips.
| Data cleanup | In area | Used | Kept | Largest removals |
|---|---|---|---|---|
| Yield monitor · fungicide/insecticide 480 ft | 6,119 | 1,549 | 25% | edge buffer 1,655, other hybrid/variety or straddling 1,495, headland passes 563 |
| Yield monitor · next 480 ft | 6,253 | 3,884 | 62% | edge buffer 650, headland passes 583, other hybrid/variety or straddling 328 |
Yield-monitor data cleaned the same way on both sides (bad points, headlands, turns and a 60-ft edge buffer removed); hybrids and varieties matched to the planting record. Weighed strips: 72 rows (180 ft) on each side of the application line, both 31EJ82. Est. return = difference × $12.62 − $35/ac.
Danforth Research Farm · 2026 Local Research Results
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