For farmers who use conservation tillage practices, effective weed management is a priority. With fewer passes through the field, starting and staying clean can be especially important.
Iowa farmer Brent Swart knows this firsthand. Farming with his brother in Clay County, Iowa, Swart has worked full time on his family’s fifth-generation farm since 2005.
“We’re 100% no-till and strip-till on our farm,” he said. “We essentially took one tool out of the toolbox, so we put a really big emphasis on preemergence herbicides.”
For years, Swart relied on a preemergence herbicide with two modes of action. While it performed well, weed pressure mounted as the brothers incorporated more conservation methods into their management system.
“When we started really going to the strip-till and no-till conservation system on our farm, we saw noticeable shifts in weed problems,” Swart said.
Those changes led Swart to place greater emphasis on early season herbicide applications that could provide extended residual control until he could return to the field for his first postemergence application.
“We’ve had to bolster up our herbicide program and put more reliance on those early season preemergence herbicides that provide extended residual control until we can get in there with the sprayer for our first post pass,” he said.
That need led Swart to Kyber® Pro herbicide, which he used for the first time in 2026. The preemergence solution boasts three effective modes of action — Groups 5, 14 and 15 — to deliver broad-spectrum control of resistant broadleaf and grass weeds.
Kyber Pro herbicide also offers control of ALS- and PPO-resistant weeds, including Palmer amaranth and waterhemp. The Group 15 mode of action adds another tool for resistance management.
“Kyber Pro has been a really good fit for our operation,” Swart said. “Not only in having multiple modes of action but also having some burndown activity for the weeds we may have present in the field when we get there with the sprayer.”
With growing seasons varying from year to year, Swart was curious about how the herbicide would perform during a drier-than-normal spring. His experience exceeded his expectations.
“Kyber Pro did not break at all,” Swart said. “We really had extended residual control with probably closer to eight weeks, allowing us more flexibility in our spray timing with our first post-season pass.”
Farmers who spray Kyber Pro herbicide can expect up to six weeks of residual activity or longer under the right conditions. This long-lasting residual keeps weeds from emerging while widening the window for postemergence applications.
Performance in the field is only one consideration, however. In a complex weed management program, farmers often combine multiple products in a single application to reduce the number of trips across the field. Swart found that Kyber Pro herbicide was very compatible with other products in the tank.
“The nice part about Kyber Pro is that it’s very easy to use,” Swart said. “It has been a very good product from a chemistry standpoint and a compatibility standpoint.”
For Swart, effective weed control is another important piece of a conservation system designed to protect the soil while maintaining productivity.
As conservation practices continue to evolve, so do the weed management strategies farmers use alongside them. For Swart, putting greater emphasis on early season residual control has helped him keep fields clean and gives him more flexibility throughout the growing season.
To learn more about Kyber Pro herbicide, visit Corteva.us/KyberPro.
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