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Dicamba in doubt for 2025 - Legal review delays availability

By Farms.com

The use of dicamba, a weedkiller widely used by farmers, remains uncertain for the 2025 growing season. A recent court decision challenged the Environmental Protection Agency's (EPA) approval process for dicamba, requiring a new registration application. While farmers can use existing dicamba stocks in 2024, the new application faces a lengthy EPA review, making widespread use in 2025 unlikely.

The legal issues center on how the EPA reviewed registrations in 2020. Environmental groups argue the process didn't adequately assess potential risks to the environment. With the new application possibly taking over a year for approval, it could exceed the growing season timeframe.

A faster decision by the EPA is a possibility but could trigger further lawsuits. The ongoing legal battles focused on environmental regulations will ultimately determine if dicamba remains available for weed control in 2025.

"The court said that the manufacturer needed to pursue a new-use registration," said Brigit Rollins, a staff attorney for the National Agricultural Law Center, regarding the new registration process. "Bayer probably saw the R170 additional food use as the best fit as a new-use registration, but they might have a completely different reason."

The R170 designation refers to a specific type of registration required by the EPA for the proposed new use of dicamba. This designation comes with a lengthy review period, potentially exceeding 17 months.

The court order allows farmers to use existing stocks of dicamba herbicides in 2024. These products must be used according to the label instructions.

Dicamba has been a controversial herbicide due to concerns about its tendency to drift from target areas. The recent legal challenges highlight the ongoing debate about balancing agricultural needs with environmental protection.


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Predictive weed Management saves on herbicide costs and increases yield potential

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Gowan Canada is partnering with Geco Strategic Weed Management to help Canadian growers take a strategic approach to weed control through data-driven prediction and planning.

Geco’s technology uses data and AI to map where weeds have been over the past five years and predict where patches are likely to emerge next season. These insights allow farms and retailers to plan ahead and target actions in the most challenging areas.

“Our technology enables the question: if you could know where your most problematic patches are and where they are spreading to, what could you do differently? That’s what our technology makes possible,” said Greg Stewart, CEO of Geco. “Many of our farms are already using our prescriptions along with Gowan products, so this collaboration is a natural next step.”