• Nettle caterpillars - stinging spines which can cause nettle rash on contact with the skin.
• Caterpillars feed on the leaves
• Infestation – mostly occur in outer whorl of fronds and middle whorl of fronds.

• Larvae are slender and greenish in colour with yellow coloured head.

• Cutting and burning the badly affected and dried leaves.
• Spraying with Carbaryl 50% W.P. 0.1% is recommended (younger larvae are more susceptible)

Image source:

http://www.mothsofborneo.com/part-1/plate9.php