• Mosaic symptom, reduction in leaf size, misshapened twisted leaves.
• The affected plants stunted, tuber splitting and yield reduction.
• The virus spreads by infected setts and whitefly Bemisia tabaci

Management:

• Selection of setts from healthy plants
• Rouging infected plants in the field at early stage
• Management of whitefly by installing yellow sticky traps, removal of weed hosts, spray neem oil 3% or Methyl dematon @ 2ml/lit.
• Spraying of systemic insecticide like dimethoate 1 ml/lit to control the vector
• Use of resistant variety CTCRRI Co (TP)5- Sripadmanaba suited for Tamil Nadu and Kerala.