Sugarcane early shoot borer (Chilo infuscatellus, pyralidae, Lepidioptera)

Damaging stage:larva

Damaging symptoms:

• Dead heart
• Easily pulled
• Pin hole near
• Damage early stage of sugarcane.

Identification

• Egg: White, ventral surface of leaves.
• Larva: dirty white, 5 longitudinal stripes
• Pupa: inside the stalk.
• Adult : straw color, balck or brown patches distribute forewings, concentrated of spot is higher in forewings with pointed head. Hindwings are white and lighter.

Life cycle:

Egg –7 days–> Larva –21 days–> Pupa –7-9 days–> Adult

Management

• Ratooning practice should be discouraged.
• Uprooting, field sanitation, crop
• Light trap.
• Trichogramma chilonis @50000/ha
• Release tachinid parasitoid: Sturmiopsis inferens @ 125 gravid
• Granulosis virus @500lit/ha
• Intercropped with dhaicha, green gram, black gram.
• Chloropyrifos 1kg/ha.