New from WinField United: SuperLock Adjuvant Simplifies Herbicide Performance

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. Tank mixes are becoming increasingly complex, and increased weather variability is creating greater difficulty in making optimal applications. Simply put, achieving the most from applications is becoming increasingly challenging, and reduced efficacy can impact a grower’s bottom line.

For major players like WinField® United, tackling these challenges starts by equipping retailers and growers with products and technologies that can help maximize the potential of every acre. That commitment extends to a new member in their trusted “Lock” portfolio — SuperLock™ adjuvant.

Data-Backed Performance

Successful products can take years to develop, test and introduce to the market. According to Dennis Christie, crop protection product manager at WinField United, SuperLock adjuvant was no exception. Christie says the team of researchers at the WinField United Innovation Center devoted more than 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.

The result is a novel, single formulation that combines a high surfactant crop oil concentrate with WinField United’s proprietary drift reduction technology (DRT). Christie notes while some products may reduce drift, they don’t all improve deposition. This combination can provide in-class drift and deposition properties. Because SuperLock adjuvant uses a crop oil concentrate rather than a methylated seed oil, Christie says they anticipate it may also reduce the crop response while maintaining or even improving weed control.

“SuperLock adjuvant helps ensure herbicides hit their intended targets and penetrate leaf surfaces, increasing yield and profitability potential through better weed control,” says Christie.

“The performance we’ve seen so far has been excellent, and, in some cases, has exceeded our high expectations.” - Dennis Christie, crop protection product manager at WinField United.

SuperLock™ adjuvant enhanced weed control of smooth pigweed versus Incinerate™ herbicide alone. (Photo Credit: WinField United)

There’s more testing currently underway and scheduled to be done through the fall. On top of that, Christie says the team won't stop there. 

“We will continue to run the full battery of tests as existing and new tank mixes, herbicides, traits and packages. The data we gather will help retailers advise growers on the best decisions for their acres,” he says.

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 also has been approved as a required oil system for tank-mix applications of Enlist Oneâ and Libertyâ Ultra herbicides and pairs well with Class Actâ NGâ adjuvant when water conditioning is needed in the tank.

Added Convenience

Christie believes all growers and applicators can benefit from a proven, easy-to-use combination adjuvant they can trust to enhance weed control and boost herbicide ROI potential. Plus, this one-jug solution simplifies warehouse management.

For those needing a drift mitigation option for herbicides affected by the Endangered Species Act, Christie says SuperLock adjuvant qualifies as a drift mitigation option within the Environmental Protection Agency Herbicide Strategy, under the Endangered Species Act.

“SuperLock adjuvant is a simple solution to help boost herbicide performance and solve problems in the field,” says Christie.

“By enhancing deposition, improving weed control and saving valuable time, SuperLock adjuvant has earned a well-deserved place in today’s market.” - Dennis Christie 

SuperLock adjuvant will be available in fall of 2025. Supplies also will be available going into the winter, and it will be available for use in spring of 2026.