Nature of Damage:
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The neonate larva bores into the fruit and finally enters the seed. A fine zig zag gallery can be seen on seed which indicates the presence of larvae inside the seed, while outer seed coat of such seed remains intact.
The larva only feeds on endosperm of the seed and completes its larval period inside the seed. The full grown larva comes out by making hole of about 2 mm in diameter mostly from the lower side of seed. Thereafter, it prepares a tunnel, generally in lower half of the fruit and comes out. Thus, an exit hole of about 1 to 2 mm in diameter either round or oblong in shape on fruit indicates its damage and also exit of larva from such fruit.
Generally, a single exit hole is observed on a fruit, however during severe infestation two holes can be seen on the same fruit. Pupation takes place in the leaf fold. Through the exit hole, secondary fungus develop inside the fruit and small black ants were also observed attracted to such fruits, which finally becomes unfit for consumption.

Management:
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Spraying the crop with Profenophos 50 % EC 15 ml or Lamda cyhalothrin 5 % EC 10 ml or Profenophos 40 % + Cypermethrin 4 % - 10 ml in 10 lit of water during October- November.