Citrus Green stink Bug( Rhynchocoris poseidon, humeralis,Pentatomidae, Hemiptera)

• Serious pest of citrus.

Damaging stage: Nymph and Adult

Damaging symptoms: Suck the sap from the tree, flowers and fruit will subsequently fall and stems can turn discolored and die, young shoots are mottled, fruits drop, brown patches appear on fruit skin.

Identification:

Egg: upper surface of the leaves Nymph: wingless

Adult: triangular shaped, prothorax with spine, green color.

Management

• Spray wood ash over the plant parts during morning
• Encourage the activity of natural enemies like tachnid fly, Big head ant, Spiders
• Egg parasitoid Trissolcus basalis and nymph parasitoid Trichopoda pennipes are reported to be effective to biologically control the bug.
• Use leguminous and cruciferous plant as trap crop for bug to reduce infestation on main
• Spray Roger (Dimethoate) 30%EC @ 2ml/liter water at fruit formation.