Ontario agronomists warn of rising waterhemp pressure and emerging Palmer amaranth risk

Herbicide-resistant weeds continue to spread across Ontario, but agronomists warn that two species — waterhemp and Palmer amaranth — are raising the most concern as the 2026 growing season approaches. At this week’s Ridgetown Agribusiness breakfast meeting, agronomists, scientists, and ag retailers highlighted the rapid expansion of waterhemp, the emerging presence of Palmer amaranth, and... Read More

  Agriculture   Apr 9, 2026   0   9  Add to Reading List

Herbicide-resistant weeds continue to spread across Ontario, but agronomists warn that two species — waterhemp and Palmer amaranth — are raising the most concern as the 2026 growing season approaches. At this week’s Ridgetown Agribusiness breakfast meeting, agronomists, scientists, and ag retailers highlighted the rapid expansion of waterhemp, the emerging presence of Palmer amaranth, and... Read More

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