Rice (Oryza sativa)
Rice Case worm ( Nymphula depunctalis )
Symptoms
- Leaves of plants are eaten by the caterpillars, which remain within small cylindrical cases which are seen hanging on the leaves.
- It occurs in ill drained fields.
- The cases may be seen floating on water also.
Management
- Spray chitin based Pseudomonas @ 2.5 kg/ha.
- Spray Azadiractin 1% @ 750 ml/litre.
- Drain away the water from the fields.
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Knapsack Sprayer (Capacity 10L) | Dosage/acre (200 L) | Dosage/hectare (500 L) | Remarks |
|---|---|---|---|---|---|---|---|---|
| 1 | Phenthoate 50 EC | Dhnusan, Tagsan | Yellow | 2 ml/ litre of water | 20 ml | 400 ml | 1000 ml |
Extremely Toxic
Highly Toxic
Moderately Toxic
