Scirpophaga incertulas (Pyralidae : Lepidoptera)
Adult : Female moth has bright yellowish forewings with distinct black spot at
the centre. Male moth is relatively darker in color and smaller in size.
Eggs : Lays 150-200 eggs on upper surface of leaf near tips and cover with
brownish body scales.
Larva : Yellowish white larva with orange yellow head.
Pupa : Pupates inside stem 5-10 cm above water level.
Damage : Freshly hatched larvae hang from leaves with salival threads and
disperse to neighboring plants by wind. They first nibble inside leaf
sheath and soon bore in to stem. Due to feeding on shoot tip results in
death of terminal shoot (dead heart) in vegetative stage and white
panicles with unfilled grains (white ear) in reproductive stage.