Symptoms
Leaves of plants are eaten by the caterpillars, which remain within small cylindrical cases and are seen hanging on the leaves. It occurs in ill drained fields. The cases may be seen floating on water also.
Management
1. Drain away the water from the fields.
2. eco- friendly management: Chitin based pseudomonas @ 2.5 kg/ha, Azadiractin 1% @ 750 ml/litre.