• 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

• 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.