Government of Saskatchewan ministries, Crown corporations and organizations are working to minimize the impacts of the postal service disruption.
Les ministères, les sociétés d’État et les organismes du gouvernement de la Saskatchewan travaillent à réduire au minimum les répercussions de l’interruption des services postaux.
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September 2025
When weeds become unmanageable, they can impact crop production by competing for resources, causing dockage in harvested grain and serving as hosts for diseases and problematic pests.
Identifying herbicide-resistant weeds is important for determining the most cost-effective way to reduce their impact on crops. The best way to tell if a weed is resistant to a particular herbicide is to submit a sample of the weed seeds for testing.
Weed seeds need to be collected at maturity before a desiccant is applied to the crop. For most species, hand collection is the best method. However, for some wind-dispersed seeds, a sweep net or small vacuum may be best for collecting seeds. The Crop Protection Lab needs 2,000 seeds per herbicide group tested. However, for some populations this number is not realistic, so it is asked that as many seeds be collected as possible.
Seeds must be submitted completely dry, which can be accomplished by allowing them to air dry on a piece of paper for a few weeks. This ensures proper evaluation at the lab. Samples can either be dropped off in person at 1610 Park Street, Regina or sent by mail. When mailing, place the weed seeds in a dry paper bag and remember to include a completed herbicide resistance form. All herbicide resistance tests must be submitted to the laboratory by January 15.
Informed management decisions can lead to the most cost-effective solutions to crop production problems. The impact of weeds can be significant; however, if controlled appropriately, the impact can be minimized.
Please contact your local crops extension specialist or the Agriculture Knowledge Centre at 1-866-457-2377 with additional questions related to herbicide resistance testing.
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