Harvest doesn't care how good your crop looked in June. It doesn't care about perfect emergence, flawless fertility, or that one Instagram-worthy field photo from July. What matters now is getting the crop across the finish line. When you're making a desiccation pass, you're operating in one of the tightest windows of the season. There are no do-overs, no second chances, and very little room for compromise. That's exactly why adjuvants matter.
And when it comes to pairing with diquat1 in Western Canada, MasterLock® has earned its place in the tank.
MasterLock is an all-in-one non-ionic surfactant (NIS) and drift reduction adjuvant that combines the DropTight® surfactant with LockTech® drift control. It's designed to improve droplet adhesion, spreading, deposition, and canopy penetration while reducing drift and keeping droplets wetter, longer, reducing the speed of evaporation. In simple terms, it helps more of your spray reach the crop and stay there.
This may look insignificant, but if multiplied across the millions of droplets applied in your field suddenly a meaningful percentage of your application never truly gets to work. This is where an NIS like MasterLock shines, as it’s specifically designed to improve droplet adhesion and spreading. Rather than bouncing away, droplets are encouraged to stay in contact with the plant surface and spread across it, improving surface area coverage.
Diquat is already a proven tool for drydown and harvest management. Pairing it with an adjuvant that's engineered to improve adhesion, spreading, deposition, canopy penetration, and drift management simply makes sense. MasterLock helps every drop work harder, stay where it belongs, and deliver the performance today's Canadian growers demand when the finish line is finally in sight.
1Always read and follow label directions.
And when it comes to pairing with diquat1 in Western Canada, MasterLock® has earned its place in the tank.
Diquat Is Fast. But Fast Isn't Everything.
Diquat has become a trusted tool for growers looking to accelerate drydown, improve harvestability, and create greater uniformity across a field. Its rapid contact activity is one of its greatest strengths. But, all contact products require exceptional coverage. Droplets need to hit the target, stay on the target, and spread across the target. Anything that reduces coverage, increases bounce, or allows droplets to drift off course is quite literally leaving performance in the air. That's where MasterLock changes the game.MasterLock is an all-in-one non-ionic surfactant (NIS) and drift reduction adjuvant that combines the DropTight® surfactant with LockTech® drift control. It's designed to improve droplet adhesion, spreading, deposition, and canopy penetration while reducing drift and keeping droplets wetter, longer, reducing the speed of evaporation. In simple terms, it helps more of your spray reach the crop and stay there.
Stop Feeding the Wind
Canadian growers know all about imperfect spray conditions, with a weather forecast that changes on a dime. When you're trying to cover thousands of acres before weather changes, waiting for a perfect spray day isn't always an option. Every droplet that drifts away from the target is product that isn't doing its intended job. MasterLock helps reduce the formation of fine, drift-prone particles while improving deposition into the crop canopy. The result is a more predictable application that gets more active ingredient where you paid for it to go. That's particularly important in pre-harvest applications where coverage consistency can influence drydown uniformity across the field.The Problem No One Talks About: Droplet Bounce
One of the least appreciated enemies of spray performance is droplet bounce. A spray droplet reaches the plant’s surface, impacts the leaf, and instead of sticking, it rebounds or runs off.This may look insignificant, but if multiplied across the millions of droplets applied in your field suddenly a meaningful percentage of your application never truly gets to work. This is where an NIS like MasterLock shines, as it’s specifically designed to improve droplet adhesion and spreading. Rather than bouncing away, droplets are encouraged to stay in contact with the plant surface and spread across it, improving surface area coverage.
Better drydown starts at the canopy base, not the top
It’s easy to look from the road and be happy with your desiccation job as the top few inches of the canopy got covered and quickly browned up. However, a quality application needs to reach through the canopy to the bottom stems to make harvesting easier. MasterLock is designed to improve deposition and canopy penetration, helping move droplets into the crop where they can contact more plant tissue from top to bottom. In crops with thick canopies like canola or pulses, or uneven maturity, that added coverage can help support a more consistent result across the field.The Bottom Line
The final spray pass of the season is one of the most important. By the time you’re spraying your pre-harvest app, most of the year's decisions have already been made. Yield has largely been built. The remaining challenge is protecting crop quality by maximizing harvest efficiency and bringing that crop home as cleanly as possible.Diquat is already a proven tool for drydown and harvest management. Pairing it with an adjuvant that's engineered to improve adhesion, spreading, deposition, canopy penetration, and drift management simply makes sense. MasterLock helps every drop work harder, stay where it belongs, and deliver the performance today's Canadian growers demand when the finish line is finally in sight.
1Always read and follow label directions.
