Growing soybeans
Soybean traits have become more complex, having multiple herbicide tolerances in a single trait. Good record keeping on what seed is planted where is highly encouraged if planting multiple traits because, the traits are not interchangeable. Misapplication over-the-top of the wrong trait could result in complete plant mortality and warrant replanting. The most widely used herbicide tolerant soybean traits on the market: Roundup Ready 2 Xtend® (RR2X), XtendFlex® (XF), Enlist E3® (E3) soybeans and LibertyLink® GT27™ (LLGT27).
Roundup Ready 2 Xtend® (RR2X)
Roundup Ready 2 Xtend® soybeans are tolerant to preemergence and postemergence applications of glyphosate and dicamba. Dicamba applications should be an approved formulation like Xtendimax® Herbicide with VaporGrip® Technology, Engenia® Herbicide and Tavium® Plus VaporGrip® Technology. The approved formulations are lower volatility formulations compared to previous dicamba formulations.
XtendFlex® (XF)
XtendFlex® soybeans are built on the premise of the RR2X trait, however, the addition of glufosinate tolerance adds flexibility for multiple postemergence options for tough-to-control broadleaf weeds. Dicamba applications should be an approved formulation like Xtendimax® Herbicide with VaporGrip® Technology, Engenia® Herbicide and Tavium® Plus VaporGrip® Technology. Currently, tank mixes of an approved dicamba and glufosinate are prohibited.
Enlist E3®
Enlist E3® platform confers tolerance to preemergence and postemergence applications of glyphosate, glufosinate and 2,4-D. For postemergence applications of 2,4-D on Enlist E3® soybeans, use either Enlist One™ with Colex-D® Technology or Enlist Duo® with Colex-D® technology. Enlist One™ and Enlist Duo® formulations contain a reduced volatility formulation, 2,4-D-choline, compared to older ester and amine 2,4-D formulations.
LibertyLink® GT27™ (LLGT27)
The LibertyLink® GT27™ trait platform is tolerant to glufosinate and glyphosate postemergence and an HPPD inhibitor, Isoxaflutole, preemergence only. The only labeled isoxaflutole containing product for LLGT27 soybeans is Alite™ 27. Be sure to check the label to determine if Alite™ 27 is labeled in your state.
For questions about traited soybeans, contact your local FS Crop Specialist.
| Trait |
Postemergence Herbicide Tolerance |
TRADE NAMES |
| Roundup Ready 2 Xtend® |
Glyphosate
Approved Dicamba1 |
Roundup PowerMAX®, etc
Xtendimax®, Engenia®, Tavium® |
| XtendFlex® |
Glyphosate
Approved Dicamba1
Glufosinate |
Roundup PowerMAX®, etc
Xtendimax®, Engenia®, Tavium®
Liberty®, Legrium™, Interline®, etc |
| Enlist E3® |
Glyphosate
Glufosinate
2,4-D Choline2 |
Roundup PowerMAX 3®, etc
Liberty®, Legrium™, Interline®, etc
Enlist One™ or Enlist DUO® |
| LibertyLink® GT27™ (LLGT27) |
Isoxaflutole
Glyphosate
Glufosinate |
Alite™273
Roundup PowerMAX®, Durango® DMA®, etc
Liberty®, Legrium™, Interline®, etc |
*This does not replace an herbicide label, please check tank mix websites prior to tank mixing
1 Approved dicamba can be applied burndown, preemergence and postemergence in Roundup Ready 2 Xtend® and XtendFlex® soybeans.
2 Enlist One™ and Enlist DUO® (2,4-D choline) can be applied burndown, preemergence and postemergence in Enlist E3® soybeans
3Alite™27 can only be applied preemergence in LibertyLink® GT27™ soybeans; check the label for approval in your state.