• Yellowing and drying of leaves of infested pseudostems.
• The presence of a bore-hole on the pseudostem through which frass is extruded and the withered and yellow central shoot

Identification of pest:

• Egg: is pink, oval, flat and lays singly or in group on the tender part of the plant
• Larva: is long, pale greenish with a pinkish was dorsally, head and pro-thoracic shield brown in colour and body covered with minute hairs arising on wards.
• Pupa: Pupation takes place in lose silken coccon in larval tunnel.
• Adult: is a medium sized moth, the wings are pale yellowish with black spots on the wings. 

Management:

• Spraying malathion 0.1% at 30 day intervals during July to October is effective in controlling the pest infestation.
• The spraying has to be initiated when the first symptom of pest attack is seen on the inner most leaves on the pseudostem.