A black and white image of a soybean field with a man in his 60s smiling with arms crossed and his son in his 30s in front of the field. The son is leaning on the father with his hand on his shoulder.

Liberty® ULTRA Herbicide

Liberty® ULTRA herbicide, Powered by Glu-L™ Technology, is the next-generation glufosinate herbicide for the next-generation grower. As the first resolved isomer of glufosinate in the US row crop market, you have the freedom to use it on nearly all soybean, cotton, corn and canola trait systems. Your future success starts with Liberty ULTRA herbicide.

View the Liberty ULTRA Press Release

   

Labels & SDS

   

Benefits of Liberty® ULTRA

Better Weed Control

  • New Liberty® Lock Formulation locks 3x more herbicide into pigweed vs generic glufosinate.1
  • Wins 9 out of 10 head-to-heads and provides 20% superior weed control versus generics.2
  • Half as likely as a generic glufosinate to require a respray.2

Easier Handling

  • BASF's Glu-L Technology enables a reduced use rate. Less volume needed, more acres treated.
  • A convenient 24-29 fl oz recommended rate range on corn, cotton and soybean.
  • Every gallon of Liberty ULTRA herbicide covers 50% more acres than generics at max rates.

Backed by the Best

  • BASF triple tests our Liberty products to ensure every gallon consistently performs.
  • BASF's industry leading R&D investment is how innovations like Liberty ULTRA herbicide are discovered.
  • BASF's local sales team continues to be rated #1 by farmers.3

1 BASF lab and growth chamber study to evaluate penetration and absorption of glufosinate formulations, 2023.

2 BASF sponsored field research trials 2022-2023, 52 trials, nationwide.

3 Stratus Farmer survey 2021-2023

   

Glu-L™ Technology Enables Easier Handling with Liberty ULTRA

Glu-L Technology Refines Glufosinate: The patented manufacturing process transforms glufosinate inefficiencies and makes room in formulation loading to allow a use rate reduction of Liberty® ULTRA herbicide vs generic glufosinate

Boosts Operational Efficiency: Lower use rate boosts operational efficiency to allow applicators to cover more acres and make more applications

Liberty ULTRA herbicide, Powered by Glu-L Technology allows you to do more with less product

Racemic Glufosinate

All generic glufosinate today

Glufosinate products consist of active L-glufosinate ammonium and inactive D-glufosinate ammonium.

Glu-L Technology

Isolate then transform

Glu-L Technology isolates, then transforms D-glufosinate into active L-glufosinate ammonium. 

Resolved Isomer of Glufosinate 

Liberty ULTRA herbicide

This result is a new, significantly more efficient product. 

  

How the Liberty® Lock Formulation Improves Weed Control

The Liberty Lock Formulation, designed specifically for Liberty ULTRA herbicide improves performance by boosting droplet coverage, dispersion and retention ultimately driving 3x more active ingredient into pigweed vs generic glufosinate.

  

Liberty ULTRA Outperforms Generic Glufosinate

The Liberty Lock Formulation locks spray droplets onto leaves and into weeds and is responsible for the 20% weed control advantage of Liberty ULTRA over generic glufosinate.

   

Crop Program Recommendation

Liberty ULTRA is the best, most flexible knockdown herbicide available across the majority of corn, soybean, cotton and canola acres. Set up Liberty ULTRA for success in a robust herbicide program that includes residual herbicides at planting and in postemergence applications.  

Soybean (Enlist® E3)

By using Liberty ULTRA herbicide as part of the Enlist E3 system, farmers will obtain superior weed control and do their part to sustain long-term efficacy. Additionally, they should include layering their residual herbicides and incorporate multiple, effective herbicide modes of action (MOA).

Soybean (XtendFlex®)

Liberty ULTRA herbicide should be used as part of the total XtendFlex system approach with the addition of pre and post residual herbicides as well as multiple, effective herbicide MOA.

Cotton

Liberty ULTRA herbicide is available for across today's cotton trait platforms, including Axant™ Flex, Enlist, GlyTol®, LibertyLink and XtendFlex, and should be used as part of a comprehensive, integrated weed management program that includes pre- and post-residual herbicides.

Canola

Liberty ULTRA herbicide use on InVigor® canola hybrids with the LibertyLink trait provides an excellent means for growers to rotate non-selective herbicide systems to effectively manage tough-to-control weeds.

Corn

The LibertyLink system couples high-performing genetics with the superior performance of Liberty ULTRA herbicide, resulting in superior weed control of tough-to-control and resistant weeds for high corn yields that deliver.

   

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    Frequently Asked Questions

    What is the active ingredient in Liberty ULTRA herbicide? What is the Mode of Action?

    Liberty ULTRA herbicide is a Group 10 herbicide, containing L-glufosinate-ammonium, along with a patented surfactant blend.

    On what crops is Liberty ULTRA herbicide registered?

    Liberty ULTRA herbicide is available for use on canola, corn, sweet corn, cotton, soybeans and sugarbeets.

    Does Liberty ULTRA herbicide have a residual?

    No, Liberty ULTRA herbicide does not contain a residual. BASF does recommend Liberty ULTRA herbicide be used as part of a total systems approach, including pre- and post-residual  herbicides to incorporate multiple, effective herbicide modes of action (MOA).

    What is the recommended use rate for Liberty ULTRA?

    When applying post-emergence, BASF recommends applying Liberty ULTRA herbicide at an application rate of 24 fluid ounces per acre, with a spray volume of at least 20 gallons of carrier per acre and a nozzle droplet size of medium-to-coarse-sized droplets for good coverage on the weed surface. 

     

    Please refer to the Liberty ULTRA label for complete application and rate guidelines

    What are the appropriate mixing instructions for Liberty ULTRA herbicide (by crop)?

    Mixing order matters when preparing your spray solution to avoid unintended consequences of incompatible products, resulting in inconvenient downtime. A great way to remember the proper mixing order is to follow the D.A.L.E.S. method: dry products first, followed by AMS, liquid and SC herbicide formulations, emulsifiable concentrates and, lastly, surfactants.

    What are the recommended nozzles to use for the best coverage of Liberty ULTRA herbicide (by crop)?

    When it comes to nozzle selection, speed and pressure should drive your nozzle choice for the best coverage. For Liberty ULTRA herbicide, that means a nozzle that provides medium- to coarse-size droplets for uniform and thorough weed coverage, such as the examples in the table below.

    What is the best time of day to spray Liberty ULTRA herbicide?

    Liberty ULTRA herbicide is a light-activated herbicide, which means the time of day you apply is important to maximize efficacy of application. While higher temperatures and relative humidity are also important, sunlight is the main driver of Liberty ULTRA herbicide activity in weeds and its overall effectiveness. Ideal timing for Liberty ULTRA herbicide is two hours after sunrise and two hours before sunset.

    How long before Liberty ULTRA is rainfast?

    Liberty ULTRA herbicide is rainfast four (4) hours after application for most weed species.

    What weeds are controlled by Liberty ULTRA herbicide?

    Liberty ULTRA kills types of broadleaf, grassy, biennial and perennial weeds. 

     

    Please refer to the Liberty ULTRA label for complete application and rate guidelines

    Does Liberty ULTRA herbicide kill grasses?

    Yes, Liberty ULTRA kills 30 different types of grasses, including types of bluegrass, crabgrass, foxtail, signalgrass, stinkgrass, and witchgrass.

    Liberty Ultra is not registered and is not available for sale. This information is provided for educational purposes only and is not intended to promote the sale of the product. Any sale of this product after registration is obtained shall be based solely on the EPA approved product label, and any claims regarding product safety and efficacy shall be addressed solely by the label.