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Crop Protection Laboratory Update

By Cerese Bawolin, Plant Health Technician, Regina

June 2021

The Crop Protection Lab (Crop Lab) is gearing up for another growing season and incoming submissions for plant disease diagnosis, insect and weed identification and Dutch Elm Disease testing.

Samples may be submitted to the lab in person, by courier or by regular mail to 1610 Park Street, Regina S4N 2G1. There is a drop box available at the main door of the building. All samples must be accompanied by a current submission form with the updated address. Forms are available on the ministry’s website or can be picked up at the lab. It is helpful to include pictures to assist in your diagnosis by submitting pictures by email to the Crop Lab.

Environmental conditions have accounted for most of problems in the submissions so far this year, primarily dry conditions and the extreme fluctuations in temperature. Deep seeding to get the seed to moisture has also compounded the environmental effects. In tree samples the problems may have been a result of previous years’ conditions.

Dutch Elm Disease submissions started June 1, 2021 and already some positive diagnoses have been confirmed. Herbicide resistance testing has been completed for the year. If you are still waiting for results, please make sure to check your spam inbox as well as your regular inbox since all clients have been contacted by email on how to pay and receive reports. Payments are made through account billing. The Crop Lab does not accept payments directly.

Note, that for the upcoming herbicide resistance testing year the submission deadline is January 15, 2022

How to Submit Samples to Crop Protection Lab?

When submitting a sample of any kind to the Crop Protection Lab, please include a completed form with all fields filled out. Having to call for further information about the sample can delay diagnosing. For more details on submissions and to find a current form, please go to Guidelines and Forms for Submitting Samples to the Crop Lab.

Information on samples that are currently accepted at the lab and guidelines on how to submit are listed as follows. Please consider the submission criteria to ensure that a sample can be accepted. The accuracy of the laboratory's diagnosis depends on the quality and quantity of the sample submitted and may be refused. Avoid mailing any samples over the weekend to prevent sample degradation.

Plant Disease Sample Submission

  • Collect whole plants, including roots.
  • Fresh samples must have roots wrapped in moist paper towels and placed in plastic sandwich bag or similar.
  • Your sample submission should consist of at least five to 10 healthy and five to 10 affected plants.

Insect Identification Sample Submission

  • Place sample in sealed container (i.e. pill bottle or similar).

Weed Identification Sample Submission

  • Collect whole plants, including roots.
  • Fresh samples must have roots wrapped in moist paper towels and placed in a plastic sandwich bag or something similar.
  • Submit several plants showing many growth stages including flowering and fruiting. For species specific identification, it is advantageous for all plant stages to be present.

Dutch Elm Disease Sample Submission

  • Submission must contain three to four smooth and straight branches, without any cankers or knots.
  • Leaves and twigs must be removed from the cut pieces of the branch, but do not remove the bark.
  • Branches must be one to 1.5 cm in diameter (about the size of your index finger or ½ an inch).
  • Branches must be 10 to 15 cm long (four to six inches).
  • Branches must not be dried out or dead.

Herbicide Resistance Submission

  • Please provide 2000 seeds for each herbicide subgroup requested (Ex. fops, dims etc.)
  • Seeds must be clean, dry and mature.
  • Do not include stems or hulls.
  • Samples must not have had glyphosate applied.
  • Results are reported as: S (Susceptible), LR (Low Resistance), MR (Moderate Resistance), HR (High Resistance).

If producers have any questions, they can reach out to the Crop Protection Laboratory at 306-787-8130.

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