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| RED GRAM |
MAJOR DISEASES |
| 1. Wilt |
| 2. Dry root rot |
| 3. Powdery mildew |
| 4. Stem blight |
| 6. Sterility Mosaic Disease |
MINOR DISEASES |
| 1. Seedling blight |
| 2. Brown blotch |
| 3. Anthracnose |
| 4. Stem rot |
| 5. Leaf spot |
| 6. Halo blight |
| Questions |
| Download Notes |
RED GRAM :: MAJOR DISEASE :: LEAF SPOT
Leaf spot - Cercospora indica
Symptoms
Small, light brown coloured spots appear on leaves. The spots later become dark brown and the infected portions drop off leaving shot hole symptoms. When several spots join together, irregular necrotic blotches develop and premature defoliation occurs. In severe cases, black lesions develop on petioles and stem.
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Cercospora indica |
Pathogen
The fungus produces large number of whip-like, hyaline, 7-9 septate conidia in groups on the conidiophores which are light to dark brown in colour.
Disease cycle
The fungus survives in the infected plant tissues. The disease is spread by airborne conidia.
Management
- Remove the infected plant debris and destroy.
- Spray Mancozeb 2 kg or Carbendazim 500 g/ha soon after the appearance of symptom and repeat after a fortnight.