Citrus psylla ( Diaphorina citric, Psyllidae, Hemiptera )

Damaging stage:- Nymp and adult

Damaging symptoms –

• sap-sucking , honey
• Vector of citrus greening and die–back.
• No diapause stage – premature fruit drop,twisted young shoot ,rosette

Identification:-

• Egg:- Yellow cluster, the tip of the growing shoot.
• Nymph:- Orange–yellow in
• Adult:- Head light brown wings are transparent and white spots.

Management :

• Predator:- ladybird beetle, wasp, lacewing, spider.
• Effectiveness of insecticide Novaluron > Azadiracti dimethoate > Verticillium lecanii> Petroleum spray oil > Abamectin.
• Novaluron 10 EC (0.005%) and Azadiractin 1% ( 004%) are best insecticides for reducing psylla.
• Seeding produced in nurseries above 1300
• Metasytor 25%, 10m /Lit, DImethoate 30%  10 mol/lit