The female flies puncture the soft and tender fruits with their stout and hard ovipositor and lay eggs below the epidermis.
- On hatching, the maggots which are voracious in nature feed inside on the pulp of fruits.
- The infested fruits can be identified by the presence of brown resinous juice which oozes out of the punctures made by the flies for oviposition.
- These punctures also serve as an entry for various bacteria and fungi which results for rotting, distortion and malformation and pre-matured falling of fruits.
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