Resources to grow market-ready crops

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Canada exports more than 90% of the canola we produce, and shipments containing even the smallest amount of unacceptable residues or de-registered varieties can be rejected, causing millions of dollars in losses and placing future business at risk.

As a grower, you play an important role in keeping canola markets open. Protect Canada’s reputation as a quality supplier by following the Keep it Clean guidelines to produce export-quality canola.

Five Simple Tips to Keep Your Canola Ready for Market

1. Use Acceptable Pesticides Only

Only apply pesticides that are both registered for use on canola in Canada and won’t create trade concerns. Talk to your grain buyer to ensure the products you are using are acceptable to both domestic and export customers.

There are no market concerns with products registered for use on canola.

2021 Update: Canola can be treated with metconazole (e.g. Quash) and quinclorac (e.g. Clever, Facet and Masterline Quinclorac).

To learn more about Crop Protection Products and International Markets, including export requirements, roles throughout the value chain and responsible commercialization, read this Brochure:
pdf Crop Protection Products and International Markets (277 KB)

2. Always Read and Follow the Label

Always follow the label for application rate, timing and pre-harvest interval (PHI). Applying pesticides or desiccants without following the label directions is illegal and may result in unacceptable residues.

For example, glyphosate should only be applied for pre-harvest weed control once grain moisture is less than 30% in the least mature areas of the crop. Applications made before the correct stage increase the risk of unacceptable residue in the grain; refer to the Keep it Clean Pre-harvest Glyphosate Staging Guide.

PHI is the number of days that must pass between spraying a pesticide or desiccant and cutting the crop by swathing or straight-cutting. Canola growers can use the interactive Spray to Swath Interval Calculator to know when it’s safe to cut your crop after spraying or to find a product to suit a specific timeline.

Illustration showing PHI as the number of days between spraying and swathing or straight-cutting the crop

3. Manage Disease Pressures

An integrated disease management plan is important to maintain yield and profitability and can help protect Canada’s reputation as a supplier of high-quality canola. Diseases like blackleg may also create a market risk.

Protect your investment by following these blackleg management tips:

  • Maintain a break between canola crops to allow time for residue to decompose – a minimum break of 2–3 years is recommended.
  • Scout fields regularly for blackleg symptoms and incidence to help determine the effectiveness of your blackleg management plan.
  • Plant only R (resistant) and MR (moderately resistant) varieties; rotate varieties to bring a mix of resistant genes and sources to the field.
  • Consider applying a fungicide from the cotyledon to 4-leaf stage if in a higher risk situation for the disease.
  • Control volunteer canola and other Brassica weeds (stinkweed, shepherd’s purse, wild mustard, flixweed) to prevent blackleg build up during non-canola years.

Visit to learn more and watch the Blackleg Disease & Resistance Management video.

4. Store Your Crop Properly

Proper storage helps to maintain crop quality and keeps the bulk free of harmful cross-contaminants.

  • Make sure your storage bins are free of treated seed and animal protein like blood meal and bone meal.
  • Clean bins thoroughly prior to storing your crop.
  • Only use approved bin treatments (e.g. diatomaceous earth on cereals).
  • Never use malathion to prepare canola for storage or to treat bins used to store canola. Its residue can linger for months, so do not store canola in a bin treated with malathion in the current growing season.
  • Condition crops to moisture and temperature levels safe for long-term storage.
  • Keep bins cool, dry, well-ventilated and check their condition regularly.

5. Deliver What You Declare

When you sign the mandatory Declaration of Eligibility affidavit at the elevator, you are making a legal assertion that your crop is the variety and/or class you have designated and that it was not treated with the crop input products specified in the declaration.

The Declaration is a legally binding document and any incorrect information, intentional or unintentional, can be traced back to the farm and individuals can be held liable for the costs associated with contamination of a bin or shipment.

Declarations of Eligibility have changed effective August 2020 as part of Canada's commitments under the CUSMA. Farmers should take time to review updated Declarations and be aware of how the changes may affect your operation. Visit grainscanada.gc and talk to your grain buyer to learn more.

Do not seed these de-registered varieties or any seed produced from them, and don’t deliver them to a Canadian elevator or crushing plant. For treated seed, contact provincial authorities or municipal landfill for disposal.

See the full list of de-registered varieties over the last 20 years: pdf De-registered Varieties of Spring Canola (302 KB)

De-registered varieties include:

  • Liberty Link (B. napus): Exceed, 2631 LL, Swallow, SW Legion LL, SW Flare LL, LBD 2393 LL, Innovator, Independence, HCN 14, Phoenix, 3850, 2153, 3640, 3880, 2163, 2273
  • Roundup Ready Polish (B. rapa): Hysyn 101 RR
  • Bromoxynil tolerant: 295BX, Armor BX, Cartier BX, Zodiac BX, Renegade BX
  • Clearfield tolerant: 46A76

For more information, visit CFIA’s database of registered varieties and proposed list of variety registration cancellations.