Time Sensitive!! – PMRA Proposed Special Review Decision of Dicamba

Oct 30, 2025

Have Your Say: Proposed Changes to Dicamba Use in Canada

On September 16, 2025, Health Canada’s Pest Management Regulatory Agency (PMRA) published a proposed special review decision for dicamba products.

This review could significantly impact how Manitoba soybean growers use dicamba. Farmers and stakeholders now have an opportunity to submit comments before the decision is finalized. The deadline for comments is December 16, 2025.

Why is PMRA reviewing Dicamba use?

PMRA received incident reports and a new toxicity study showing risks to non-target terrestrial plants from dicamba use. These findings triggered a special review of all currently registered commercial-class dicamba products and their associated uses in Canada.

Why does dicamba matter for Manitoba soybean growers?

In 2025, Manitoba farmers grew 1.54 million acres of commercial soybeans and 98,000 acres of pedigree soybeans for seed production.
Dicamba-tolerant varieties accounted for over 74% of these acres.

Dicamba is a critical tool for controlling herbicide-resistant weeds such as waterhemp, kochia, smartweed, and cleavers. In particular, waterhemp germinates later in the season, after pre-emergent herbicides lose effectiveness. Dicamba’s early post-emergent application timing helps manage this challenge.

MPSG recognizes dicamba as an essential option for both pre- and post-emergent weed control. We stand firmly opposed to the PMRA’s proposed special review decision.

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Video: A chain harrow is a game changer

Utilizing a rotational grazing method on our farmstead with our sheep helps to let the pasture/paddocks rest. We also just invested in a chain harrow to allow us to drag the paddocks our sheep just left to break up and spread their manure around, dethatch thicker grass areas, and to rough up bare dirt areas to all for a better seed to soil contact if we overseed that paddock. This was our first time really using the chain harrow besides initially testing it out. We are very impressed with the work it did and how and area that was majority dirt, could be roughed up before reseeding.

Did you know we also operate a small business on the homestead. We make homemade, handcrafted soaps, shampoo bars, hair and beard products in addition to offering our pasture raised pork, lamb, and 100% raw honey. You can find out more about our products and ingredients by visiting our website at www.mimiandpoppysplace.com. There you can shop our products and sign up for our monthly newsletter that highlights a soap or ingredient, gives monthly updates about the homestead, and also lists the markets, festivals, and events we’ll be attending that month.