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Agricultural crops :: Pulses :: Blackgram

Leaf Crinkle: Leaf Crinkle Virus
Symptom
  • The earliest symptoms appear on youngest leaves as chlorosis around some lateral veins and its branches near the margin.
  • The leaves show curling of margin downwards.
  • Some of the leaves show twisting.
  • The veins show reddish brown discolouration on the under surface which also extends to the petiole.
  • Plants showing symptoms within 5 weeks after sowing invariably remain stunted and majority of these die due to top necrosis within a week or two.
  • Plants infected in late stages of growth do not show severe curling and twisting of the leaves but show conspicuous venial chlorosis any where on the leaf lamina.
  • The disease develops in the fields mainly through seed or rubbing of diseased leaves with the healthy ones.


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