Quinclorac

Quinclorac and canola

Quinclorac is a pesticide registered in Canada to control cleavers. Based on current information, exporters and processors have individually advised that they may not accept canola treated with quinclorac in 2018. Residues can occur in canola seed, oil and meal and a maximum residue limit (MRL) to facilitate trade with China has not been finalized – see 2018 update here.  Growers are advised to contact their grain buyer directly before using quinclorac in 2018, or to use other cleavers control methods.  

Why quinclorac has affected marketing options for canola

There has been a great deal of uncertainty about whether certain important export customers will accept canola treated with this pesticide. Quinclorac leaves detectable residues, and without an MRL either in China or in the Codex Alimentarius, the international standard setting body, exporters and processors are concerned that residue in shipments will create a significant export risk.

How the Canola Council is addressing market risks linked to pesticides

The Canola Council monitors residue requirements in major markets and encourages crop protection companies to ensure any market access issues or other potential problems have been addressed before a new product is introduced, or before a new use is added to the label. If we see an issue emerging, we discuss our concern with the company and encourage them to consult with other parts of the value chain that will be affected. With rare exceptions, co-operation throughout the industry has been very strong.

When considering the market risk of using a pesticide, our value chain looks at a combination of factors, such as:

  • the likelihood of a product leaving detectable residues
  • the frequency and quantity of detectable residues
  • regulatory changes in export markets
  • industry intelligence on market sensitivities
  • pest pressures and product use patterns
  • regional concentration of use


We are also helping growers understand these issues and control pests in ways that align with our export customers’ requirements.

The larger problem is the lack of consistent global tolerances for pesticide residues and other sanitary/phytosanitary issues. The Council is active in the MRL Task Force, which is seeking greater international cooperation among all trading partners. Progress is being made but the global regulatory landscape remains complex.