Symptoms of Stemphylium Blight in Onion

Stemphylium blight:- 

 

  • Small yellowish to orange spots or streaks in the middle of leaves and flower stalks appear on one side.  
  • Later stage elongated spindle-shaped spots surrounded by pinkish margin developed in the middle of leaves.  
  • The disease appearing on the inflorescence stalk causes severe damage to the seed crop.

 

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