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Horticultural crops :: Fruits:: Papaya
Papaya ring spot: Papaya ring spot virus

Symptoms

  • Vein clearing, puckering and chlorophyll leaf tissues lobbing in.
  • Margin and distal parts of leaves roll downward and inwards, mosaic mottling, dark green blisters, leaf distortion which result in shoe string system and stunting of plants.
  • On fruits circular concentric rings are produced.If affected earlier no fruit formation.
  • Vectored by aphids Aphis gossypii, A. craccivora and also spreads to cucurbits not through seeds.
Symptom on fruit 
Papaya Ring spot Virus Aphids

Papaya ring spot virus on leaves
Management
  • Raise papaya seedlings under insect-proof conditions.
  • Plant disease free seedlings.
  • Raise sorghum / maize as barrier crop before planting papaya.
  • Rogue out affected plants immediately on noticing symptoms.
  • Donot raise cucurbits around the field.

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