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Mango shoot borer

 

Chlumetia transversa (Walker) (Noctuidae: Lepidoptera)

 

 

Shoot borer   

Symptoms:

This borer has become quite destructive and more common on young tender shoots.  The caterpillars bore into midribs of tender leaves and tunnels downwards near the growing point throwing excreta.  The affected growing point dies with characteristic tip wilting and drying.  Usually, the affected tip puts forth several shoots.  Seldom, this borer attacks inflorescence.

 

 

Control

  1. The attacked shoots may be clipped off and destroyed.

  2. Spraying of quinalphos @ 2.5 mL/L at fortnightly intervals (2-3 sprays depending on intensity of infestation) from the commencement of new leaves gives effective control.