Cabbage (Brassica oleracea var. capitata)
Cabbage borer (Hellula undalis)
Symptoms
- The adult female lays eggs on the growing point or on the older leaves.
- Caterpillars first mine into leaves and feed on the chlorophyll
- Later on feed on the leaf surface sheltered within the silken passage.
- The pale-whitish caterpillars mine the foliage, feed on the shoots and finally bore into the stem.
- As a result the infested plants are killed or produce side shoots, which do not form heads.
Management
- Monitoring of pest at seedling or early growth stage.
- Collection and destruction of early stage caterpillars
- Indian mustard as trap crop
- Spray neem seed kernel extract (50 gram/litre of water).
- Spray 20 gram bird pepper (kandari) extract in 1 litre cow's urine and 10 litre of water.
- Spray tobacco decoction.
- Spray Beauveria bassiana (20 g/litre of water).
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Knapsack Sprayer (Capacity 10L) | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | |||||||
| 1 | Malathion 50 EC | Agromala, Agromala Malathion, Celthion, Hilmala, Kthion, Malaacid, Simala Milthion, Tagthion Malamar, Thisol | Blue | 2 ml/litre of water | 20 ml | 400 ml | 1000 ml | - |
| 2 | Quinalphos 25 EC | Agroquin, Anuphos, Guin Guard Tagquin, H.LX, Hilquin Geelux, Kinalaux Exalux, Krilux, Quinaswan Flash, Quincid Starlux, Rambalux Quinolux | Yellow | 2 ml/litre of water | 20 ml | 400 ml | 1000 ml | - |
Extremely Toxic
Highly Toxic
Moderately Toxic
