Cardamom aphid

Cardamom aphid: Pentalonia nigronervosa f.caladii

Symptoms of damage:

  • Nymphs and adults suck up plant sap.
  • Colonies of aphids are seen under concealed conditions inside leaf sheaths of the older pseudostems.
  • The aphids act as a vector of the mosaic or ‘Katte’ virus of cardamom.

Identification of pest:

  • The wingless aphid is dark brown, pyriform.
  • Winged aphids have wings having prominent black veins


  • Removal of Colocasia and other hosts in the vicinity of cardamom plantation is recommended.
  • Remove partly dried and decayed pseudostems which harbour the colonies of aphids to reduce aphid population and
  • Foliar spraying with dimethoate 2 ml/lit at an interval of 2 weeks in November and April gives adequate control.



  • TamilNadu Agritech Portal
Show Buttons
Hide Buttons