Black Gram Yellow Mosaic

Black Gram Yellow Mosaic: Mungbean Yellow Mosaic Virus

  • The disease is more prevalent on black gram than a green gram.
  • Initially, mild scattered yellow spots appear on young leaves.
  • The next trifoliate leaves emerging from the growing apex show irregular yellow and green patches alternating with each other.
  • Spots gradually increase in size and ultimately some leaves turn completely yellow.
  • Infected leaves also show necrotic symptoms.
  • Diseased plants are stunted, mature late and produce very few flowers and pods.
  • Pods of infected plants are reduced in size and turn yellow in colour.
  • Growing resistant varieties such as VBN 4, VBN 6 and VBN 7
  • Seed treatment with Dimethoate (or) Imidacloprid @ 5 ml /kg
  • Installation of yellow sticky traps 12 nos/ha
  • Rogue out the infected plants up to 45 days
  • Foliar spray of notchi leaf extract 10% at 30 DAS or neem formulation 3 ml/lit
  • Spray methyl demeton 25 EC 500 ml/ha or dimethoate 30 EC 500 ml/ha or thiamethoxam 75 WS 1g /3 lit and repeat after 15 days, if necessary.



  • TamilNadu Agritech Portal
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