Resistance Fighter: Herbicide Resistance Management

Fight Herbicide Resistance with Syngenta

Mapping the spread of herbicide resistance shows just how big a challenge it has become for growers today. With Syngenta, you get the most flexible portfolio of soybean herbicides on the market to meet your area’s needs. Build your soybean herbicide program below!

Plan Your Program

Resistance Fighter: Herbicide Resistance Management

Fight Herbicide Resistance with Syngenta

Mapping the spread of herbicide resistance shows just how big a challenge it has become for growers today. With Syngenta, you get the most flexible portfolio of soybean herbicides on the market to meet your area’s needs. Build your soybean herbicide program below!

Plan Your Program

Your Flexible Weed Resistance Management Program

Every day that you’re late with a herbicide application beyond the critical early-growth period, you lose 1% of your soybean yield potential*. You need a flexible, integrated weed management plan of overlapping residuals to fight tough and resistant weeds. Explore your soybean herbicide options with our diverse portfolio.

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Win the Fight Against Tough Weeds

Weed resistance management is a top concern on every grower’s mind. The actions you take to control tough weeds this season play a key role in the yield potential you will see at harvest and beyond.

Our agronomy experts who live and work in your area can help you craft the integrated weed management plan that fits your operation’s specific needs.

Our interactive map lets you advance through the years to show how herbicide-resistant weeds have become the challenge they are today. Discover how resistance has spread to your state and the steps you can take to slow that spread.

View the Map
Two illustrated weeds with a background of a rising sun.

Source: Heap, I. The International Survey of Herbicide Resistant Weeds. Online. Internet. Thursday, October 31, 2019. Available www.weedscience.org

Steps for Weed Resistance Management

  • Start clean, utilizing tillage or an effective burndown, plus a preemergence herbicide with residual control
  • Use multiple effective sites of action with overlapping residuals to help delay herbicide tolerance or resistance
  • Always use a 2-pass system of a preemergence herbicide followed by a post-emergence herbicide at the full label rates
  • Do not allow weeds to go to seed and add to the seed bank, as this can result in generations of herbicide-resistant plants
  • Utilize good agronomic practices, such as narrow rows and increased plant populations, to promote crop growth and competitive ability

Portfolio Support

Click to expand product options by crop.

Soybean Products

Tavium® Plus VaporGrip® Technology herbicide is a premix featuring dicamba plus residual control that manages key broadleaf and grass weeds.

Learn more about Tavium

Boundary® 6.5 EC herbicide gives ALS- and PPO-resistant weeds a one-two punch that they don’t see coming.

Learn more about Boundary 6.5 EC

BroadAxe® XC herbicide manages beyond the basic weeds that evade most other herbicides.

Learn more about BroadAxe XC

Prefix® herbicide provides maximum weed management on either side of planting.

Learn more about Prefix

Flexstar® GT 3.5 herbicide is the post-emergence partner in a full-season weed management program for Midwest growers.

Learn more about Flexstar GT 3.5
Corn Products

Acuron® herbicide combines four active ingredients and three effective sites of action to deliver more effective and more consistent weed control than any other product.

Learn more about Acuron

Acuron® Flexi herbicide defeats tough weeds with added flexibility.

Learn more about Acuron Flexi

Halex® GT herbicide provides Glyphosate with Residual™ broadleaf weed and grass control.

Learn more about Halex GT

Lexar® EZ herbicide combines three active ingredients and three effective sites of action for long-lasting residual control of annual grass and broadleaf weeds.

Learn more about Lexar EZ

Lumax® EZ herbicide combines three active ingredients and three effective sites of action for long-lasting residual control of annual grass and broadleaf weeds.

Learn more about Lumax EZ
Wheat Products

Talinor® herbicide delivers excellent standalone control to tough broadleaf weeds in wheat and barley. Now growers can get efficient, one-pass grass and broadleaf weed control with multiple modes of action by tank-mixing Talinor with Axial® Bold or Axial Star herbicides.

Learn more about Talinor

Know Your Weeds

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Marestail

The first glyphosate-resistant weed identified in U.S. row crops in 2000, marestail is a dangerous weed. It produces up to 200,000 seeds/plant and grows up to 5-6 feet tall. The seeds are highly mobile, which results in rapid spread.

Marestail usually germinates in fall and spring, but can germinate year-round.

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Waterhemp

Waterhemp produces up to 1 million seeds/plant and can grow as much as 1 inch/day. The average height is 4-5 feet tall, with some weeds reaching up to 12-feet tall.

The pollen from these weeds can travel ½ a mile or more and because of the cross pollination that occurs, resistance can spread quickly.

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Palmer Amaranth

Palmer amaranth thrives in reduced-, minimum- or no-tillage systems because it germinates close to the soil surface. It can produce 10,000 to 100,000 seeds/plant and has the potential to overtake the crop due to its rapid growth and aggressive competition. Palmer amaranth is more competitive than other pigweed species, with a growth rate approaching 3 inches/day.

When allowed to compete throughout the growing season, Palmer amaranth can create yield losses of up to 91% in corn and 79% in soybeans. It can reach 8 feet in height.

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Morningglory

Once established, morningglory is very tough to control with post-emergent herbicide applications. It competes with corn and soybeans for nutrients and has the potential to reduce yield.

Morningglory can produce up to 500 seeds/plant, and, due to an extremely hard seed coat, some seeds can remain viable in the soil for more than 50 years.

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Giant Ragweed

Research shows that season-long competition from giant ragweed can lead to crop losses of 30 to 90%.

Giant ragweed often grows taller higher than the crop, sometimes up to 5 feet taller. It can produce up to 5,100 seeds per plant.

 
 

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Syngenta News

April 17, 2018

Syngenta herbicide, Fusilade® DX, cleared for tank mix on Roundup Ready 2 Xtend® soybeans

Syngenta has received confirmation from the Environmental Protection Agency (EPA) that Fusilade® DX herbicide has been cleared for tank mixing with both XtendiMax® with VaporGrip® Technology and Engenia® herbicides. Fusilade DX will be available for use on Roundup Ready 2 Xtend® soybeans, providing growers with more options for a strong weed management plan this growing season.Read more »

March 06, 2018

Syngenta identifies key strategies to manage the spread of resistant Palmer amaranth

Syngenta warns that glyphosate-resistant Palmer amaranth, one of the most threatening weeds in Southern corn and soybean fields, continues to spread into the Midwest. Knowing how to defeat this tough weed is imperative to protect crop yields and manage future resistance.Read more »

February 23, 2018

Minimize threat of resistant kochia by planning ahead, Syngenta advises

Kochia can be exceptionally competitive with corn, soybean and cereal crops. Take control of the weed by treating it with Syngenta residual herbicides and take back your field.Read more »

February 15, 2018

Syngenta recommends overlapping residuals for season-long waterhemp management

Due to the expanding threat of resistant waterhemp, Syngenta urges corn and soybean growers to prepare a management strategy that includes overlapping residual herbicides with multiple, effective modes of action (MOAs) for the upcoming growing season.Read more »

All photos are the property of Syngenta or are used with permission.

* Based on 1% yield loss per day when application is delayed beyond critical period (up to V3**). Bob Hartzler, Iowa State University.

** Swanton et. al, Weed Science, Vol. 56, No. 1.

© Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties. Please check with your local extension service to ensure registration status. Gramoxone SL 3.0 and Tavium Plus VaporGrip Technology are Restricted Use Pesticides. For use by certified applicators only. LibertyLink® is a registered trademark of BASF. GT27® is a registered trademark of M.S. Technologies and BASF. The Roundup Ready 2 Yield® and Roundup Ready 2 Xtend® traits may be protected under numerous United States patents. It is unlawful to save soybeans containing these protected traits for planting or transfer to others for use as a planting seed. Only dicamba formulations that employ VaporGrip® Technology are approved for use with Roundup Ready 2 Xtend® soybeans. Only 2,4-D choline formulations with Colex-D® Technology are approved for use with Enlist E3® soybeans. Roundup Ready 2 Yield®, Roundup Ready 2 Xtend®, VaporGrip® and XtendFlex® are trademarks of, and used under license from, Monsanto Technology, LLC. ENLIST E3® soybean technology is jointly developed with Dow AgroSciences LLC and MS Technologies LLC. The ENLIST trait and ENLIST Weed Control System are technologies owned and developed by Dow AgroSciences LLC. ENLIST E3® is a registered trademark of Dow AgroSciences LLC. BroadAxe® is a registered trademark of FMC Corporation. Boundary®, Flexstar®, Fusilade®, Gramoxone®, Prefix®, Sequence®, Tavium® and the Syngenta logo are registered trademarks of a Syngenta Group Company. All other trademarks are the property of their respective owners.