Resources to grow market-ready crops

Malathion residue can linger in bins for months after treatment and can be transferred from the bin to canola seed, putting marketability at risk. Canola found with malathion residues is unacceptable for export customers and can damage Canada’s reputation as a trusted supplier.

Reduce the risk of contaminating your harvest by planning storage requirements accordingly – never use malathion to prepare canola for storage or treat bins in which you plan to store canola.

Malathion can be used to treat cereals and other non-oilseed grains in bins that have been contaminated with insects. Any grower doing so should record the date of treatment and not use that bin to store canola in this growing season.

The Canola Council of Canada recommends growers also follow these storage procedures to protect the quality of your crop:

  • Clean bins thoroughly prior to storing your crop.
  • Only use approved bin treatments (e.g. diatomaceous earth) prior to storing canola.
  • Condition crops to moisture and temperature levels safe for long-term storage.
  • Keep bins cool, dry, well-ventilated and check their condition regularly.
  • Make sure your storage bins are free of treated seed and animal protein like blood meal and bone meal.

Protect your investment and help keep markets open for all by practicing safe storage and keeping malathion out of your canola bins.


Storing your crop properly is just one of the 5 Simple Tips to keep your canola ready for market.