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Pre-harvest Glyphosate Staging Guide

Use these handy staging guides to determine when grain moisture is less than 30% in your crop.




Printable Guide

General Glyphosate Information

  • Where allowed, glyphosate is registered for pre-harvest weed control and is not to be used as a desiccant
  • Pre-harvest glyphosate may only be applied when grain moisture content is less than 30% in the least mature part of the field, including any areas of regrowth which may produce seed. Applying too early can result in unacceptable product residues in the grain.
  • To avoid unacceptable residue levels, always follow the product’s label for application rate, timing and pre-harvest interval (PHI).
  • Never harvest earlier than recommended – this can increase the risk of unacceptable glyphosate residues in harvested grain.
  • When using glyphosate for pre-harvest weed control in a tank mix with other products, such as Saflufenacil (Heat), the products must still be applied when grain moisture content is less than 30% in the least mature part of the field and must also follow the PHI of the most restrictive product label.

On-farm practices make a difference in protecting Canada’s reputation as a trusted supplier of high-quality canola, cereals and pulses. For current product advisories and more ways to keep your crop ready for market, visit the Product Advisory page.

We’re all in
this together.

Do your part to protect the quality and reputation of Canadian crops and help keep markets open for all.

Follow the Keep it Clean 5 Simple Tips to ensure your canola, cereals and pulses are ready for market.