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Rice In Sri Lanka - Pests of Rice

Rice Leaffolders

The caterpillars infest the leaves and feed on the mesophyll.They fasten the edges of a leaf together and live inside the rolled leaf.Feeding reduces productive leaf area that affects plant growth. 

 Favorable conditions 

  • Cloudy and humid weather
  • Shady  conditions
  • High N-fertilizer application

Effective control methods

  • Establish crop at recommended plant spacing
  • Use recommended dose of N-fertilizer
  • Monitor crop regularly. ELT
  • ETL 25% of leaves showing > 50% damage
  • Use safer IGR for control