Herbicide Application fact sheet Effective Double Knock Herbicide Applications

Published: 1 Sep 2019

By using a Double Knock approach in fallow paddocks, growers have a reliable technique to control difficult weeds while also assisting in the management of herbicide resistance.

Key Points

  • Double Knock herbicide strategies are critical to reducing weed seed banks.
  • May delay the selection for glyphosate resistance, where Double Knock applications are routinely introduced before resistance is present.
  • Optimal timing between applications is dependent upon the herbicides used and the weeds being targeted.
  • Where possible, always target small weeds to ensure reliable performance.
  • Attention to herbicide application parameters will improve consistency of results.

Link to this publication

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GRDC Project Code: ICN1811-001STX