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Documenting emergence patterns at our Crop Tour plot in Galva, Illinois

Anything that emerges after 36 hours of the first plant emergence is considered a weed and will not be able to catch up to the neighbors and therefore will rob plants of valuable inputs.

  • White Flags – 0-12 hours
  • Red Flags – 12-24 hours
  • Blue Flags – 24-36 hours

Anything that emerges after 36 hours of the first plant emergence is considered a weed and will not be able to catch up to the neighbors and therefore will rob plants of valuable inputs.