Okra / Bhindi (Abelmoschus esculentus L.)
Whitefly (Bemisia tabaci)
Symptoms
- Causes Chlorotic spots and yellowing by sucking cell sap from the leaves.
- Downward curling and drying of leaves.
- Severe infestation results in premature defoliation.
- Sooty mould can be seen on the leaves.
- They are the vectors of yellow vein mosaic virus.
Management
- Field sanitation, roguing of affected plants
- Place yellow sticky (castor oil coated) traps @ 20 no/ha.
- Apply nitrogen fertilizers judiciously.
- Protect the nursery by using nylon nets (200 mesh) for 25-30 days.
- Spray Lecanicillium lecanii (synonym Verticillium lecanii) (20 g/litre of water).
- Spray neem garlic emulsion (20 ml neem oil + 20 gram garlic paste + 5 gram bar soap/ 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 | Dimethoate 30 EC | Nugor, Rogor, Tagor, Tara 909 | Yellow | 2 ml/litre of water | 20 ml | 200 ml | 1000 ml | - |
| 2 | Malathion 50 EC | Agromala, Agromala Malathion, Celthion, Hilmala, Kthion, Malaacid, Simala Milthion, Tagthion Malamar, Thisol | Blue | 2 ml/litre of water | 20 ml | 200 ml | 1000 ml | - |
| 3 | Thiamethoxam 25 WG | ACT 150, Actara, Click, Exaam, Krioxam, Maxima, Renova, Slayer, Suckgan, Tagsulf, Tagxone, Theme, Wonderex | Blue | 0.4 g/litre of water | 4 g | 40 g | 200 g | - |
Extremely Toxic
Highly Toxic
Moderately Toxic
