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Primextra II Magnium

SKU: TL01200190

Primextra® II Magnum® keeps fields clean so emerging corn can perform to its full yield potential. (2/case)

Product Benefits

  • Consistent residual weed control for up to 14 weeks after application.
  • Unsurpassed crop safety.
  • Safe for your crop rotation: Primextra II Magnum binds to the soil and stays there to fight weeds throughout the season, but it is broken down in the soil long before you're ready to re-plant.


Registered on corn (field, seed, sweet).

For the control or suppression of barnyard grass, crabgrass (smooth, hairy), foxtail (giant, green, yellow), lady’s-thumb, lamb’s-quarters, nightshade (American, eastern black), witchgrass, pigweed (prostrate and redroot), purslane, ragweed, smartweed, tall waterhemp, wild buckwheat, wild mustard, yellow nutsedge.

For a full list of crops and application directions, refer to the product label. Always read and follow label directions.

Active Ingredient

S-metolachlor & atrazine


Groups  5 + 15  Herbicides

PCP # 25730


Label   |   SDS

  • About Syngenta

    Syngenta is a leading science-based agtech company. We help millions of farmers around the world to grow safe and nutritious food, while taking care of the planet.

  • Please Note:

    Regulations prohibit sale of pest control products outside Canada. For more information about pest control product regulations within Canada, please refer to this summary.