Agronomy •  2024-02-16

Understanding the value of a diversified weed management program

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Farmers are increasingly adopting a program approach to their weed control. This isn’t a new concept, but it’s proving to offer valuable agronomic, economic and sustainability solutions. Investing in a weed control program today will pay off in the long run – managing current weeds and preventing future weed problems and resistance issues, while ensuring essential herbicide tools maintain effectiveness and continue to perform for years to come on the farm.

A complete program approach requires adopting new technologies and taking an integrated approach to weed management.

Leverage technology

Today’s trait technology offers farmers the most advanced genetics and crop protection that deliver results. Corteva’s weed control “program approach” recommends using pre-emergence residual herbicides with different modes-of-action followed by a post-emergence pass.

For soybeans, farmers can start with Enlist E3™ soybeans. This advanced herbicide trait option offers high yield potential and a robust herbicide tolerance. When paired with Enlist™ herbicides as part of the Enlist™ Weed Control System, farmers can also leverage agronomic advantages like low drift and a near-zero volatility solution that stays where it’s sprayed.

Enlist E3™ soybeans are available in high yielding genetics with agronomic traits and provide robust herbicide tolerance to 2, 4-D, glyphosate and glufosinate.

Take a diversified approach

Employing different modes-of-action, residuals and at least two herbicide passes (pre-emergent and post-emergent) is the solution to avoid weeds altogether. A weed-free field allows crop genetics to reach their full genetic potential, delivering yield and quality.

Farmers need to start by adopting multiple effective modes-of action. Not only will this approach keep weeds off balance and slow resistance development, but reducing the number of weeds emerging by using alternate modes of action can reduce the selection pressure on post-emergent tools.

Adopting the Enlist Weed Control System also provides tank-mix flexibility. Using Enlist herbicides – Enlist Duo™ or Enlist™ 1 offers different post-emergence tank-mix options and modes-of-action.

Enlist Duo provides weed control from glyphosate and 2,4-D choline in one convenient formulation.

Enlist 1 is a stand-alone 2,4-D choline formulation, providing the flexibility to tank-mix and adjust the rates of glyphosate or Liberty® 200 SN (glufosinate) for hard-to-control and resistant weeds.

What makes a program approach different?

Controlling weeds with a program approach will help ensure good agronomics, optimize yields and create a sustainable system. Reducing early season competition from annual grass and broadleaf weeds sets fields up for success.

Starting with a two-pass system and switching up application timing means fields can get a clean start by controlling weeds when they are small, or less than four inches, with a residual pre-emergence or burndown herbicide. Farmers should ensure the first pass should include alternate modes-of -action where possible for resistance management.

Reducing early season competition from annual grass and broadleaf weeds opens a wider window for the post-emergence pass, creating more flexibility in timing, optimum weed control and reduced weed competition.

Adding multiple effective modes of action also makes a weed control program approach different from other weed management strategies.

The value of investing in a weed control system will pay dividends each year at harvest and in future years by protecting chemistries, delaying herbicide resistance and providing crops their best chance of realizing their genetic potential.

Looking for more information about how to incorporate a program approach into your fields? Talk to your local retailer, agronomist or Corteva Agriscience Retail Territory Manager.