Nature of Damage:
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The young larvae feed on tender leaves without folding them.
The older larvae fold the leaf blades into tubular structure with a sticky substance and feed inside the fold by scrapping the green matter.
The heavily infested crop has streaks on the leaves and appears whitish from a distance.
As a result of attack photosynthetic activity of the leaves is interfered with the plants are predisposed to fungal and bacterial infections.