Preplant Burndown and Residual - No-Till
*CHOOSE A BURNDOWN PROGRAM + A RESIDUAL PROGRAM TO SUIT YOUR NEEDS
BURNDOWN PARTNERS
| PRODUCT | RATE | COST/AC | FLEABANE | STRENGTHS | WEAKNESSES |
| Blackhawk + glyphosate | 0.45L/ac + 1.0L/ac equiv | $16.63 | Emerged (<10cm) | Excellent burndown for fleabane, good broadleaf control. Good kill on perennial weeds, more complete kill. | No residual weed control. Slower burndown than Eragon. |
| Eragon LQ + Merge + glyphosate | 29.5mL/ac + 0.4L/ac + 1.0L/ac equiv | $16.06 | Emerged (20 leaf) | Excellent broadleaf burndown, including glyphosate-resistant fleabane. Fast-acting. | No residual weed control. May burn perennials down too quickly for complete kill. |
| 2,4-D Ester + glyphosate | 0.33L/ac + 1.0L/ac equiv | $10.25 | Emerged | Good burndown for perennials, slow-acting for more complete kill. Less expensive option. | Label states 2,4-D Ester needs to be applied 7 days before planting. Slower burndown than Eragon. No residual. |
| Elevore + glyphosate | 29.5mL/ac + 1.0L/ac equiv | $14.98 | Emerged | Excellent burndown for fleabane and ragweed, including Group 2 resistant biotypes. More complete kill than Eragon. | Must wait 7 days after application to plant. No residual control; add a residual partner such as Sencor. |
RESIDUAL CONTROL PARTNERS
| PRODUCT | RATE | COST/AC | FLEABANE | STRENGTHS | WEAKNESSES |
| Boundary + Authority | 1L/ac + 0.118L/ac | $43.07 | Residual | Best residual grass control and good broadleaf control as well. Most common program. Sencor is effective against glyphosate resistant fleabane. | Some potential for triazine resistance. Best used in a 2 pass system. Weaker on ragweed. |
| Authority Supreme + Sencor | 200ml/ac + 220g/ac | $41.38 | Residual | Good control of many common grassy and broadleaf weeds, including foxtails, pigweed, cleavers and lamb’s quarters, as well as glyphosate-resistant weeds. | Cannot be incorporated, weaker on ragweed, especially if Group 2 resistant. Higher rate of Authority Supreme required for full-season control (240ml/ac) |
| Triactor (Sencor + Valtera + Pursuit) | 220g/ac + 75g/ac + 128mL/ac (26ac/Case) | $54.00 | Residual | Multiple modes of action with good grass control and very good broadleaf control. Sencor and Valtera will help glyphosate with burndown, Sencor rate should suppress fleabane. | Expensive, weak on perennials, Pursuit portion may not do much if there is Group 2 resistance. Cannot be incorporated. Valtera can potentially cause injury, does not impact yield. |
| Bifecta + Zidua SC | 40ac/Case + 100mL/ac | $48.39 | Residual | Excellent broadleaf weed control, including nightshade & fleabane. Zidua adds residual grass control. | Weak perennial weed control. Weaker on ragweed as well. Cannot be incorporated. Zidua rate varies by soil type. |
| Fierce + Canopy Pro | 85g/ac + 220g/ac + 14.4g/ac | $57.07 | Residual | Multiple modes of action with good annual grass control and very good broadleaf control, including some redundancy for triazine or group 2 resistance. Good nightshade control. Option to hold Classic back for post-emerge application. | Expensive, cannot be incorporated. Resistant biotypes will reduce the number of modes that are effective in the product. May still be weaker on ragweed. Valtera portion can potentially cause injury, does not impact yield. |
**Multiple combinations of these products exist to target specific weed issues. Refer to OMAFRA Publication 75A to determine the best mix**
IP Soybeans - Post-Emerge
**Refer to OMAFRA Publication 75A to determine the best product for a specific weed problem**
IP Soybeans - Preharvest Burndown
| PRODUCT | RATE | COST/AC | FLEABANE | STRENGTHS | WEAKNESSES |
| Eragon LQ + Merge + glyphosate | 29.5mL/ac + 0.4L/ac + 1L/ac Equiv. | $16.06 | Emerged (20 leaf) | Faster action than glyphosate alone, will also desiccate beans. Improves harvestability and provides a clean start for following wheat crop. | At this point, weed control is simply for harvestability. Yield has been impacted and weeds have likely gone to seed. Will not take down fleabane that has bolted. |