U.S.-Mexico corn fight could hurt barley growers

Dec 05, 2022

A brewing corn trade war between Mexico and the United States could have dire consequences for Canadian barley growers, says an analyst.

Mexican president Andres Manuel Lopez Obrador issued a presidential decree on Dec. 31, 2020, that would ban the import of genetically modified corn starting in 2024 and phase out the use of glyphosate.

On Nov. 28, 2022, the United States threatened legal action against Mexico if it proceeds with that plan.

“The president’s phase-out decree has the potential to substantially disrupt trade, harm farmers on both sides of the border and significantly increase costs for Mexican farmers,” U.S. Secretary of Agriculture Tom Vilsack said in a tweet after meeting with Lopez Obrador.

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Video: Do Cold Temps Impact Emerging Corn & Soybeans? | Pioneer Agronomy

A cold snap swept across west central Minnesota and eastern South Dakota, bringing frost, fog, and temperatures dipping into the 20s—raising urgent questions about early crop damage.

Pioneer Agronomist Eric Rice breaks down what those overnight temperatures could mean for emerged corn and soybeans, how to assess frost injury, and why patience is key before making any replant decisions. Learn the critical differences between corn and soybean growing points, what cosmetic vs. serious damage looks like, and how last week’s high winds may also be influencing what you’re seeing in the field.

Watch for:

• Frost thresholds for early-season crop damage

• Why corn may be more resilient than it looks

• Soybean growth stages and frost susceptibility

• How to evaluate brittle stems and discolored tissue

• Why waiting 4–5 days before assessing stand loss matters

• When to contact your local Pioneer agronomist or sales representative