Controlling Weeds in Corn Long Term

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dead weed in corn field

As a retailer, you know that tough broadleaf and grass weeds can intensify year after year, requiring more inputs and reducing corn yield.

“A program approach is going to be key from a weed management standpoint to prolong the longevity of all the chemistries we are using to control weeds today,” says Will Tubbs, market development specialist, Corteva Agriscience. “A program approach uses preemergence herbicides in conjunction with our postemergence herbicides for effective, long-lasting weed control and higher yield potential.”

Watch this video to see how a corn weed control program approach can help customers effectively control weeds this season — and set them up for better long-term success.

Products that fit the way you farm

Long-term, effective weed control can’t be achieved with a one-size-fits-all approach. That’s why Corteva Agriscience offers customized corn herbicide programs that meet your customers’ unique weed challenges.

“An effective corn weed control program could include Resicore or SureStart II herbicide preemergence, followed by Kyro herbicide postemergence,” Tubbs says. “These solutions offer three effective modes of action and extended residual activity against the toughest broadleaf and grass weeds in cornfields.”

As preemergence application options, Resicore® herbicides provide control of more than 75 high-anxiety broadleaf weeds and grasses. With strong residual control and versatile application timing, Resicore herbicides help customers tackle tough weeds and boost yield potential.

With SureStart® II herbicide, your customers get the application flexibility to spray corn from preplant to early postemergence, helping to overcome unexpected, troublesome weeds. Proven to protect yield potential and provide dependable control of more than 60 broadleaf weeds, SureStart II herbicide helps give corn the clean start it needs.

Choosing Kyro herbicide as a postemergence option not only ensures excellent crop safety for higher yield potential but also provides both postemergence and residual control of persistent weeds for long-term weed control. Kyro herbicide offers flexible application timing on up to 24-inch corn and the ability to tailor weed control programs to fit your customers’ unique corn acres.

The Corteva Agriscience corn herbicide portfolio offers a variety of complementary herbicide options that seamlessly integrate into corn weed management programs for long-lasting weed control, resistance management and optimized yield potential.

Reach out to your local Corteva Agriscience representative or visit to find the right long-term corn weed control solutions for your customers.


Kyro™, Resicore® and SureStart® II are not registered for sale or use in all states. Kyro, Resicore and SureStart II are not available for sale, distribution or use in Nassau and Suffolk counties in the state of New York. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions.