Black Gram (Vigna mungo)
Yellow mosaic disease(C.O.: Mungbean yellow mosaic virus)
Symptoms
- Mild scattered yellow spots appear on young leaves.
- Trifoliate leaves emerging from the growing apex show irregular yellow and green patches alternating with each other.
- Spots gradually increase in size and ultimately some leaves turn completely yellow.
- Affected plants are stunted, mature late and produce very few flowers and pods.
Management
- Grow resistant varieties
- Place yellow sticky traps (12 no/ ha) to control whitefly.
- Rogue out the infected plants up to 45 days.
- Foliar spray of neem formulations (3 ml/ litre of water) at 30 days after sowing
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 | 1 ml | 10 ml | 200 ml | 500 ml | |
Extremely Toxic
Highly Toxic
Moderately Toxic
