Introducing a Simplified Way to Boost Herbicide Performance
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Today’s agronomic landscape demands more from every application. Weed pressures are increasing with more than 250 weed species now resistant to at least one herbicide mode or site of action.1 Tank mixes are becoming increasingly complex, and increased weather variability is creating greater difficulty in making optimal applications. Simply put, achieving the most from your applications is becoming increasingly challenging, and reduced efficacy can impact your bottom line.
At WinField® United, we’re committed to tackling these challenges together by equipping you with products and technologies that can help maximize the potential of every acre. That commitment extends to a new member of the trusted “Lock” portfolio — SuperLock™ adjuvant.
The result is a novel, single formulation that combines a high surfactant crop oil concentrate with our proprietary drift reduction technology (DRT). While some products may reduce drift, they don’t all improve deposition. This combination can provide best-in-class drift and deposition properties. The DRT helps ensure right-sized droplets land on target, while the surfactant system helps ensure herbicides penetrate leaf surfaces effectively.
The performance we’ve seen so far has been excellent, and, in some cases, has exceeded our high expectations. Because SuperLock adjuvant uses a crop oil concentrate rather than a methylated seed oil, we anticipate it may also reduce the crop response while maintaining or even improving weed control.
There’s more testing currently underway and scheduled to be done through the fall. On top of that, we won't stop there. We will continue to run the full battery of tests on existing and new tank mixes, herbicides, traits and packages. The data we gather will help you make the best decisions for your acres.
It’s highly compatible with many commonly used herbicides, including glufosinate, 2,4-D, clethodim, glyphosate and others. It has also been approved as a required oil system for tank mix applications of Enlist One® and Liberty® Ultra herbicides and pairs well with Class Act® NG® adjuvant when water conditioning is needed in the tank.
• Wanting to improve weed control performance for general herbicide tank mixes.
• Wanting the simplicity of a DRT with a high surfactant crop oil concentrate in one solution.
• Looking to mitigate crop response with aggressive tank mixes.
• Needing a drift mitigation option for herbicides affected by the Endangered Species Assessment.
As of today, the endangered species assessment has been embedded into the new label language. Products that are newly labeled or that will be relabeled in the future will require drift mitigation to reduce the buffer index around the field border. SuperLock adjuvant qualifies as a drift mitigation option within the Environmental Protection Agency Herbicide Strategy, under the Endangered Species Act.
What are the use rate considerations for SuperLock adjuvant?
The recommended use rate is 0.5% v/v or not less than 12 fluid ounces per acre. SuperLock adjuvant may be used whenever the label calls for a crop oil concentrate or high surfactant oil concentrate. It may be used at rates equal to or less than the standard oil rates recommended on the herbicide label.
What are the formulation details?
SuperLock adjuvant’s DRT performance meets the standard of our other “Lock” brands. The formulation contains 100% functioning agents and is loaded with 25% surfactant.
When will SuperLock adjuvant be available?
It will be available in the fall of 2025 through our Early Advantage program. We'll have supply available going into the winter, and it will be available for use in spring of 2026.
Performance and Value, Combined
SuperLock adjuvant is a simple solution to help boost herbicide performance and solve problems in the field. Its oil-based surfactant system combined with DRT sets it apart. Plus, by enhancing deposition, improving weed control and saving valuable time, SuperLock adjuvant has earned a well-deserved place in today’s market.
For more information on SuperLock adjuvant, talk with your local trusted advisor.
1Herbicide Resistance Action Committee.
2Internal research conducted by WinField United.
All photos are the property of WinField United or used with permission.
© 2025 WinField United. Important: Before use always read and follow label instructions. Crop performance is dependent on several factors many of which are beyond the control of WinField United, including without limitation, soil type, pest pressures, agronomic practices and weather conditions. Growers are encouraged to consider data from multiple locations, over multiple years and to be mindful of how such agronomic conditions could impact results. Class Act, NG, SuperLock and WinField are trademarks of WinField United. All other trademarks are the property of their respective owners.
At WinField® United, we’re committed to tackling these challenges together by equipping you with products and technologies that can help maximize the potential of every acre. That commitment extends to a new member of the trusted “Lock” portfolio — SuperLock™ adjuvant.
Data-Backed Performance
Successful products can take years to develop, test and introduce to the market. SuperLock adjuvant was no exception. Our team of researchers at the WinField United Innovation Center devoted over 1,900 hours to product development, capturing 3,655 wind tunnel measurements, spraying more than 5,500 plants and conducting 57 trials on 2,280 plots.2The result is a novel, single formulation that combines a high surfactant crop oil concentrate with our proprietary drift reduction technology (DRT). While some products may reduce drift, they don’t all improve deposition. This combination can provide best-in-class drift and deposition properties. The DRT helps ensure right-sized droplets land on target, while the surfactant system helps ensure herbicides penetrate leaf surfaces effectively.
The performance we’ve seen so far has been excellent, and, in some cases, has exceeded our high expectations. Because SuperLock adjuvant uses a crop oil concentrate rather than a methylated seed oil, we anticipate it may also reduce the crop response while maintaining or even improving weed control.
There’s more testing currently underway and scheduled to be done through the fall. On top of that, we won't stop there. We will continue to run the full battery of tests on existing and new tank mixes, herbicides, traits and packages. The data we gather will help you make the best decisions for your acres.
Broad Flexibility
Across multiple crops, SuperLock adjuvant is suitable for tank-mix partners that permit the use of an oil-based product or recommend the use of an oil-based surfactant system.It’s highly compatible with many commonly used herbicides, including glufosinate, 2,4-D, clethodim, glyphosate and others. It has also been approved as a required oil system for tank mix applications of Enlist One® and Liberty® Ultra herbicides and pairs well with Class Act® NG® adjuvant when water conditioning is needed in the tank.
Added Convenience
I believe all growers and applicators can benefit from this one-jug solution, which provides the convenience of two adjuvant systems in one for simplified application and easier warehouse management. More specifically, SuperLock adjuvant is a strong fit for growers who are:• Wanting to improve weed control performance for general herbicide tank mixes.
• Wanting the simplicity of a DRT with a high surfactant crop oil concentrate in one solution.
• Looking to mitigate crop response with aggressive tank mixes.
• Needing a drift mitigation option for herbicides affected by the Endangered Species Assessment.
As of today, the endangered species assessment has been embedded into the new label language. Products that are newly labeled or that will be relabeled in the future will require drift mitigation to reduce the buffer index around the field border. SuperLock adjuvant qualifies as a drift mitigation option within the Environmental Protection Agency Herbicide Strategy, under the Endangered Species Act.
Frequently Asked Questions
Now that SuperLock adjuvant is available beyond trials, we anticipate a range of questions. Here’s a quick reference to address some of the most frequent.What are the use rate considerations for SuperLock adjuvant?
The recommended use rate is 0.5% v/v or not less than 12 fluid ounces per acre. SuperLock adjuvant may be used whenever the label calls for a crop oil concentrate or high surfactant oil concentrate. It may be used at rates equal to or less than the standard oil rates recommended on the herbicide label.
What are the formulation details?
SuperLock adjuvant’s DRT performance meets the standard of our other “Lock” brands. The formulation contains 100% functioning agents and is loaded with 25% surfactant.
When will SuperLock adjuvant be available?
It will be available in the fall of 2025 through our Early Advantage program. We'll have supply available going into the winter, and it will be available for use in spring of 2026.
Performance and Value, Combined
SuperLock adjuvant is a simple solution to help boost herbicide performance and solve problems in the field. Its oil-based surfactant system combined with DRT sets it apart. Plus, by enhancing deposition, improving weed control and saving valuable time, SuperLock adjuvant has earned a well-deserved place in today’s market.
For more information on SuperLock adjuvant, talk with your local trusted advisor.
1Herbicide Resistance Action Committee.
2Internal research conducted by WinField United.
All photos are the property of WinField United or used with permission.
© 2025 WinField United. Important: Before use always read and follow label instructions. Crop performance is dependent on several factors many of which are beyond the control of WinField United, including without limitation, soil type, pest pressures, agronomic practices and weather conditions. Growers are encouraged to consider data from multiple locations, over multiple years and to be mindful of how such agronomic conditions could impact results. Class Act, NG, SuperLock and WinField are trademarks of WinField United. All other trademarks are the property of their respective owners.
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