Adjuvant Research That Proves Itself in the Tank
Every spring, you probably make a significant investment in crop protection products. But are they performing as well as they could be? Adding a quality adjuvant to your tank mix can help more product reach its target and increase its effectiveness once it gets there.
Finding answers
Researchers at the WinField United Innovation Center use state-of-the-art technology to evaluate the entire crop protection product application process, resulting in the creation of leading-edge adjuvants, herbicides, insecticides and fungicides to help you be successful in the field.
During the growing season, we run field trials to see exactly how our adjuvants perform with a variety of crop protection products. Year-round, our staff runs many compounds through our Spray Analysis System to observe how different combinations of adjuvants and active ingredients affect spray quality. Spray chambers at the Innovation Center allow products to be tested much like they would be in the field, with the same size nozzles and nozzle orientation as a full-size sprayer.
Laboratory testing, as well as research conducted under regulated growing conditions in greenhouses and growth chambers, lets us test products without the unpredictability of the external environment. This leads to greater efficiency, consistency and precision. Determining product specifics such as shelf life and mixing capabilities helps WinField United bring a more complete product to market.
With the new parameters designed to mitigate spray drift established in the EPA Herbicide Strategy, getting herbicides right the first time is more critical than ever. Adjuvants can help you not just meet but thrive under these regulations and increase herbicide efficacy as you face less flexibility in applications and products.
The Numbers Tell the Story
Research indicates that WinField United adjuvants help increase the efficacy of crop protection products, giving you the opportunity to increase yield and ROI potential. Here are just a few data points:
MasterLock® adjuvant helps improve fungicide response on corn, increasing yields by an average of 5.7 bu/A in corn1 and 3.7 bu/A in wheat2, compared to fungicide alone.
Class Act® NG® adjuvant drives herbicide into plants, increasing glyphosate uptake in velvetleaf by 2.1x when Class Act NG adjuvant was used compared to AMS alone.3
StrikeLock® adjuvant helps optimize deposition and reduce drift with 34% more coverage to support Enlist® One herbicide uptake.4
InterLock® adjuvant delivers more droplets in the ideal droplet diameter spectrum, increases droplet speed without thickening the spray and helps get more active ingredient deeper into the plant canopy. InterLock improves on-target spray potential by 33% for stronger return on investment and enhanced weed control.5
The way I think about applying a crop protection product is: If I don’t do this right, I’m in a respray situation. And nobody makes money in a respray situation. You’ve got to start with the correct amount of active ingredient per acre, then use a quality adjuvant to get as much of that active ingredient as possible to the target.
Talk with your local trusted advisor about how adding a quality adjuvant to the tank can help you get more out of your crop protection products.
1 WinField United. Fourteen studies, eight states, all fungicides. 2012–2017.
2 WinField United. Twelve trials, five locations across the U.S. and Canada. 2019-2021.
3 Colorado State University. Phil Westra research conducted in 2004.
4 2024 WinField United Innovation Center Controlled Environments study comparing herbicide leaf uptake comparing using StrikeLock adjuvant + Enlist One v. Enlist One alone.
5 In 2023, InterLock reduced the number of driftable fines from the baseline treatment by an average of 33% across four herbicide tank-mixtures and two nozzles.
All photos are either 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, InterLock, MasterLock, NG, StrikeLock, and WinField are trademarks of WinField United. All other trademarks are the property of their respective owners.
Finding answers
Researchers at the WinField United Innovation Center use state-of-the-art technology to evaluate the entire crop protection product application process, resulting in the creation of leading-edge adjuvants, herbicides, insecticides and fungicides to help you be successful in the field.
During the growing season, we run field trials to see exactly how our adjuvants perform with a variety of crop protection products. Year-round, our staff runs many compounds through our Spray Analysis System to observe how different combinations of adjuvants and active ingredients affect spray quality. Spray chambers at the Innovation Center allow products to be tested much like they would be in the field, with the same size nozzles and nozzle orientation as a full-size sprayer.
Laboratory testing, as well as research conducted under regulated growing conditions in greenhouses and growth chambers, lets us test products without the unpredictability of the external environment. This leads to greater efficiency, consistency and precision. Determining product specifics such as shelf life and mixing capabilities helps WinField United bring a more complete product to market.
With the new parameters designed to mitigate spray drift established in the EPA Herbicide Strategy, getting herbicides right the first time is more critical than ever. Adjuvants can help you not just meet but thrive under these regulations and increase herbicide efficacy as you face less flexibility in applications and products.
The Numbers Tell the Story
Research indicates that WinField United adjuvants help increase the efficacy of crop protection products, giving you the opportunity to increase yield and ROI potential. Here are just a few data points:
MasterLock® adjuvant helps improve fungicide response on corn, increasing yields by an average of 5.7 bu/A in corn1 and 3.7 bu/A in wheat2, compared to fungicide alone.
Class Act® NG® adjuvant drives herbicide into plants, increasing glyphosate uptake in velvetleaf by 2.1x when Class Act NG adjuvant was used compared to AMS alone.3
StrikeLock® adjuvant helps optimize deposition and reduce drift with 34% more coverage to support Enlist® One herbicide uptake.4
InterLock® adjuvant delivers more droplets in the ideal droplet diameter spectrum, increases droplet speed without thickening the spray and helps get more active ingredient deeper into the plant canopy. InterLock improves on-target spray potential by 33% for stronger return on investment and enhanced weed control.5
The way I think about applying a crop protection product is: If I don’t do this right, I’m in a respray situation. And nobody makes money in a respray situation. You’ve got to start with the correct amount of active ingredient per acre, then use a quality adjuvant to get as much of that active ingredient as possible to the target.
Talk with your local trusted advisor about how adding a quality adjuvant to the tank can help you get more out of your crop protection products.
1 WinField United. Fourteen studies, eight states, all fungicides. 2012–2017.
2 WinField United. Twelve trials, five locations across the U.S. and Canada. 2019-2021.
3 Colorado State University. Phil Westra research conducted in 2004.
4 2024 WinField United Innovation Center Controlled Environments study comparing herbicide leaf uptake comparing using StrikeLock adjuvant + Enlist One v. Enlist One alone.
5 In 2023, InterLock reduced the number of driftable fines from the baseline treatment by an average of 33% across four herbicide tank-mixtures and two nozzles.
All photos are either 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, InterLock, MasterLock, NG, StrikeLock, and WinField are trademarks of WinField United. All other trademarks are the property of their respective owners.
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