Late corn planting? Stay focused on weed control

On Groundhog Day in February 2018, Punxsutawney Phil saw his shadow, signaling six more weeks of winter. Months later, farmers are feeling the impact of that prediction as prolonged cool weather delayed corn planting across the Midwest. Farmers are making quick progress to remedy the delay, but unfortunately, so are weeds. 

If any weed grows more than a few inches tall, it is difficult to control. Some common weeds, such as marestail, can grow almost any time of the year without being dormant long. Other weeds, such as waterhemp, can grow 1.5 inches per day. It’s critical to scout for these weeds throughout the growing season so you can identify them early and implement an effective herbicide program.

Because of heavy pressure from Palmer amaranth and kochia, Nebraska farmer Blake Johnson sees the importance of early season weed control despite a later start to planting. Johnson usually begins planting corn around April 10, but at that time this year he had just applied a burndown herbicide.

“We’re incorporating Resicore as the corn emerges for good blanket of residual to get the crop to canopy,” Johnson says. “With our corn program, we want to use different modes of action. We’ve always used dicamba in our post application but now we’re using Resicore, which doesn’t have dicamba, to get a different mode of action.”

Recommend herbicides that are proven to perform.
There are a variety of unique corn herbicides to help your customers control weeds pre- and postemergence, including:

  • Resicore® herbicide gives farmers power over weeds deep into the growing season. Introduced to cornfields in 2016, Resicore brings together three modes of action and a wide rate range to fit a variety of agronomic programs, including preemergence, postemergence or split applications.
  • SureStart® II herbicide is proven to give corn a strong start as the first pass to control difficult and herbicide-resistant weeds and grasses. SureStart II can be applied preplant or on up to 11-inch-tall corn, giving your customers the flexibility to overcome unexpected weather delays and cover more ground.
  • DuPont Realm® Q herbicide provides excellent postemergence broadleaf weed control in corn, with a built-in crop safener and multiple modes of action. The convenient dry formulation of Realm Q makes measuring, mixing and cleanup easier, and it eliminates the need for pumps, tanks or meters.
  • DuPont Cinch® ATZ herbicide and Keystone® NXT herbicide are dependable solutions for your customers wanting to apply a residual with atrazine. Both products can be applied from preplant through early postemergence.

In 2017, Nebraska farmer Blake Johnson applied FulTime® NXT herbicide preemergence followed by Resicore® herbicide postemergence to keep his cornfields clean deep into the growing season.

®™Trademark of The Dow Chemical Company (“Dow”) or E. I. du Pont de Nemours and Company (“DuPont”) or affiliated companies of Dow or DuPont. DuPont Cinch® ATZ, FulTime NXT and Keystone NXT are federally Restricted Use Pesticides. DuPont Cinch® ATZ herbicide, DuPont Realm® Q herbicide, FirstRate, Keystone NXT, SureStart II and Resicore are not registered for sale or use in all states. FulTime NXT, Keystone NXT, SureStart II and Resicore 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. ©2018 Dow AgroSciences LLC