TNAU Agritech Portal
Home | About Us | Success Stories | Farmers Association | Farmers' Innovation | Publications| Contact

Crop Protection :: Pests of Citrus

Citrus psyllidDiaphorina citri 

Symptoms of damage

  • Both nymphs and adults suck sap from the plants and injection of toxic saliva
  • Nymphs - are more destructive, crowd on the terminal shoots, buds and tender leaves
  • Excrete honeydew- growth of sooty moulds
  • Affected plant parts dry and die away
  • It is transmits the "Greening" virus

Identification of pest

  • Nymphs: Are flattened, oval in shape with orange colour
  • Adult: Minute insect, shiny black with grey dusting on the body, wings are extending beyond the tip of the abdomen


  • Collect and destroy the damaged plant parts
  • Spraying with systemic insecticides at flush growth periods
  • Spray malathion 0.05% or carbaryl 0.1%
  • Encourage the activities natural enemies such as Syrphids and Chrysopids
Psyllid infested plants    Sooty mould on leaves
Egg Nymphs Adult

Home | About Us | Success Stories | Farmers Association | Publications | Contact Us

© 2015 TNAU. All Rights Reserved.