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Part 1: More Powerful Weed Control, More Often

February 27, 2017

As weed resistance expands, growers are looking for solutions to deliver control of their toughest weeds and achieve high yields. Weed control starts with effective modes of action. And powerful weed control leads to high yields.

To be effective, herbicides must deliver consistent, powerful control against tough weeds. Premix herbicides with 1 or 2 modes of action can lose effectiveness if weeds become resistant to a herbicide. As resistance develops to 1 mode of action in a premix, greater pressure is put on other modes of action to deliver effective control.

Multiple effective modes of action are needed to control the toughest weeds in corn. With more effective modes of action, it is more difficult for weeds to develop resistance against an herbicide.

A 2016 Syngenta trial highlights the benefits that multiple effective modes of action have on controlling tough weeds. Acuron® corn herbicide, SureStart® corn herbicide and their individual active ingredients were sprayed pre-emergence on 4-inch pots that were seeded with Palmer amaranth. Similar trials have been conducted to compare Acuron to Corvus® herbicide and Acuron to Verdict® herbicide.

Image of Acuron corn herbicide performance vs. competitors

The results showed Acuron, with more modes of action, had more effective control, compared to other herbicides. Acuron outperforms competitor herbicides by providing more effective modes of action, longer residual control, greater application flexibility and more power, more often against tough broadleaf weeds.

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