Nature of damage:
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Both nymphs and adults suck cell sap from the leaves and leaves turn pale yellow and later on dry up.
Adults and nymphs secrete honeydew like substance which falls on the leaves and on which black sooty mould develops.
Black coating interferes photosynthetic activity of the plant. The sucrose content of juice is reduced.

Management:
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Collection and destruction of egg masses.
Ectoparasite of nymph and adult Epiricania melanoleuca. Spraying the crop with dimethoate 0.03% 30 EC fenitrothion 0.05% 50 EC, carbaryl 0.20%.