Brinjal (Solanum melongena L.)
Bacterial Wilt (Ralstonia solanaeiarum)
Symptoms
- Wilting, dropping, and stunting of foliage and collapse of whole plant
- Downward curling of leaflets
- Vascular discolouration and browning of roots
- Bacterial ooze is noticed when the stem is cut and dipped in water
Management
- Crop rotation with non-hosts
- Destroy solanaceous collateral hosts
- Remove and destroy infected plants and disinfected the pit with bleaching powder @ rate of 15 kg /ha
- Application of well decomposed neem cake @ 25 g/pit
- Use resistant varieties like Surya, Swetha, Haritha, Neelima
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 | Copper hydroxide 77 WP | HiDice, Kocide 101 | Blue | 1 g/litre of water | 10 g | 200 g | 500 g | Planting pits should be drench prophylatically |
| 2 | Copper oxychloride 50 WP | Bensaan, Blitox, Blue copper, Bluetrox, Copter, Cupramar, Cuprina, Dhanucop, Fytolan, Fytox, Fytran, Fytolan, Hilcopper, Killex copper, Maincop Dhanucop, Star cop, Tagcop, Trucop | Blue | 2 g/litre of water | 20 g | 400 g | 1000 g | Planting pits should be drench prophylatically |
Extremely Toxic
Highly Toxic
Moderately Toxic
