Banana (Musa spp.)
Banana bunchy top disease(Banana Bunchy Top Virus (BBTV))
Symptoms
- Dwarf bananas are very susceptible.
- Infected suckers put forth narrow leaves, which are chlorotic and exhibit mosaic symptoms.
- Affected leaves are britttle with their margins rolled upwards.
- Leaves become bunched together at the apex of the pseudostem to form a rosette or bunchy top.
- Leaf production stops.
- Diseased plants remain stunted.
Management
- Avoid growing leguminous and cucurbitaceous vegetables as intercrop.
- Before planting, spread lemon grass in the pits.
- Apply Carbosulfan 6G (15 gram/ plant) 20 days after planting around the rhizomes in soil for controlling vectors and subsequently in the leaf axils (5 gram Carbosulfan 6G) at 2 ½ months and 5 ½ months after planting.
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 | Dimethoate 30 EC | Nugor, Rogor, Tagor, Tara 909 | Yellow | 2 ml/litre of water | 20 ml | 400 ml | 1000 ml | |
Extremely Toxic
Highly Toxic
Moderately Toxic
