Why are my soybeans yellow? Part 1

Soybeans throughout the county just don’t look good right now.  Development has been slowed and many fields have areas (sometimes large areas) with a light green or yellowish tint to the beans.  What is causing this yellowing? One possibility is:

Yellow Flash (glyphosate)

Temporary yellowing of newly emerged soybean leaves due to glyphosate application to glyphosate-resistant beans. More common in:

  • Conditions conducive to rapid soybean growth (high temperatures and/or humidity)

  • High rates/areas of overlap
  • Areas with micronutrient deficiency

Injury often appears one to two weeks after application and often disappears by 21 days after the area was treated. There is no evidence of yield loss from this phenomenon.

Click here for more information on Yellow Flash.

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