Failed Cotton Herbicide Rotation Restrictions to Soybean in Oklahoma
Efficient weed management is vital for successful crop production and sustaining agricultural productivity. Herbicides play a crucial role in this regard, assisting farmers in controlling weed populations and preserving crop health. In Oklahoma, challenges arise for producers when transitioning from failed cotton to soybeans due to herbicide rotation restrictions. Residual herbicides remain active in the soil for an extended period after application, providing ongoing weed control by inhibiting weed seed germination or growth. Non-residual herbicides are fast-acting and degrade quickly, affecting not only the weeds present at the time of application without providing long-term control. Non-residual herbicides are typically used for immediate control of actively growing weeds.
This publication implores the importance of adhering to herbicide rotational restrictions during the transition between individual crops- in this case a fail/early terminated cotton crop to soybean. By consolidating information on commonly used herbicides in cotton production and their residual effects on soybean crops, farmers can make informed decisions to protect their crops from potential herbicide damage and optimize yields. Rotational restrictions are crucial for preserving crop rotations like soybeans, mitigating the negative impacts of herbicide residues.
Herbicide | Component Herbicides | MOA | Soybean Rotational Restrictions | Notes |
---|---|---|---|---|
2,4-D LV6 | 2,4-Dichlorophenoxy-acetic Acid (Amine or Ester) | 4 | 14 Days | This does include Enlist soybean in accordance to label. |
AIM EC | Carfentrazone | 14 | 0 Days | |
Assure II | Quizalofop | 1 | 0 Months | |
Caparol | Prometryn | 5 | 12 Months | Follows the all other crops on the label. |
Clarity | Dicamba | 4 | 14 Days | Time interval is based on 8 oz/A application rate and does not begin until 1 inch of rainfall is received. |
Dual Magnum | S-Metolachlor | 15 | 0 Months | |
Fusilade DX | Fluazifop | 1 | 0 Months | |
Fusion | Fluazifop Fenoxaprop | 1 | 0 Months | |
Roundup Power Max | Glyphosate | 9 | 0 Months | |
Gramoxone SL 2.0 |
Paraquat | 22 | 0 Months | |
Liberty 280 SL | Glufosinate-Ammo-nium | 10 | 0 Months | |
Direx 4L | Diuron | 7 | Next season | |
Engenia | Dicamba BAPMA Salt | 4 | 0 Months | |
Enlist Duo with Colex-D Technology | 2,4-D Choline Salt Plus Glyphosate DMA Salt | 4 & 9 | 30 Days | Enlist corn, cotton, and soybeans can be planted immediately. |
Enlist One with Colex-D Technology | 2,4-D Choline Salt | 4 | 15-30 Days | Rotation intervals increase with higher application rates. Enlist corn, cotton, and soybeans can be planted immediately. |
MSMA 6.6 | MSMA | 17 | 0 Months | |
Outlook | Dimethenamid-P | 15 | 0 Months | |
Poast Plus | Sethoxydim | 1 | 0 Months | |
Prowl 3.3 EC | Pendimethalin | 3 | 0 Months | |
Select 2 EC | Clethodim | 1 | 0 Months | |
Sequence | Metolachlor & Glypho-sate | 15 & 19 | 0 Months | When applied at 1 oz/A rotation interval for soybean is 0 months. |
Sharpen | Saflufenacil | 14 | 0-6 Months | Rotation intervals increase with higher application rates. |
Staple LX | Pyrithiobac | 2 | 10 Months | |
Tavium Plus VaporGrip | Dicamba & S-Meto-lachlor | 4 & 15 | 28 Days | Xtend soybean and cotton can be planted immediately. |
Treflan HFP | Trifluralin | 3 | 0 Months | |
Valor SX | Flumioxazin | 14 | 0 Months | |
Warrant | Acetochlor | 15 | 0 Months | |
XtendiMax with Vapor Grip Technology | Dicamba DGA Salt | 4 | 14-28 Days | Rotation intervals increase with higher application rates. |