Tapioca (Manihot esculenta)
Scale insects (Aonidomytilus albus)
Symptoms
- Scales infest the crop by sucking the plant sap.
- Leaves of attacked plants become discolored and dry up.
- Stunting of the plants results from thousands of the scales feeding on the stems.
Management
- Select pest-free setts for planting.
- Collect and burn the stems infested with scales.
- Encourage activity of coccinellid predators (Chilocorus nigritus).
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 | 1.5 ml | Dip the setts | |||
| 2 | Malathion 50 EC | Agromala, Agromala Malathion, Celthion, Hilmala, Kthion, Malaacid, Simala Milthion, Tagthion Malamar, Thisol | Blue | 2 ml | Dip the setts | |||
Extremely Toxic
Highly Toxic
Moderately Toxic
