Symptoms of Damage
The larval stage is the most damaging phase of the pest's life cycle. Initially, young larvae feed on the lower epidermis of the leaf. As they grow, they consume the entire leaf blade, often leaving only the midribs behind. During severe infestations, larvae can strip the palm of its foliage entirely.
1.Symptom
2.Adult
Identification of the Pest
Egg: Flat shiny eggs on the under surface of leaves
Larva: Greenish body with white lines and four rows of spiny scoli tipped red or black, which cause irritation and pain.
Pupa: It pupates in a compact elliptical chocolate brown shell-like cocoon, which is convex above and flat ventrally as stems. Cocoons are covered with irritating spines and hairs
Adult: Adult moth has green wings with prominent dark patch at the base of each forewing
Management
Chemical Method
Collect and destroy the immature stages of the insects by conducting study (or neem campaign) wherever possible and spray carbaryl 50 WP 2 gm/lit .
Spray carbaryl 50 WP 2 g/l.
Spray dichlorvos 76 WSC 2 ml / lit.
Mechanical Method:
Set up light traps to trap and collect adult moths. About 5 light traps may be installed per hectare.
Coconut Skipper:
Gangara thyrsis ; Suastus gremius
Pest population occurs round the year but population maximum during June – Sep coinciding with the onset of monsoon.
Symptoms of Damage:
One half of the leaflets are cut and rolled into a case.The rolled leaflets are dried.
1.Rolled leaf
2.Dried rolled leaf
Identification of the Pest
Management:
Chemical Method
Collect and eliminate the immature stages of the insects through regular inspections or a neem campaign whenever feasible. For effective control, spray carbaryl 50 WP at a concentration of 2 grams per liter. Alternatively, dichlorvos 76 WSC can be sprayed at a rate of 2 milliliters per liter.
