Identification Symptoms

  • Rosetted flowers
  • Excreta observed at the point of bore holes by larval feeding.
  • When bolls are opened, damaged seed kernel would be observed.
  • They cut window holes (interlocular burrowing) in the two adjoining seeds thereby forming "double seeds"
  • The attacked buds and immature bolls drop off
  • Discoloured lint and burrowed seeds
  • Attacked flowers drop prematurely and the seeds are destroyed in advanced stage
  • The lint development is retarded and is weakened.
  • It causes premature opening of the boll leading to invasion of saprophytic fungus.
  • Stain the lint both in the gin and in the boll, thus the ginning percentage and quality of lint is greatly reduced.
  • Poor germination capacity of seeds in the attacked boll.