Chilli thrips: Scirtothrips dorsalis
Symptoms of damage:
- The infested leaves develop crinkles and curl upwards
- Elongated petiole
- Buds become brittle and drop down
- Early stage, infestation leads to stunted growth and flower production, fruit set is arrested
Identification of pest:
- Nymph: Are small, linear, easily fragile abdomen with straw yellow colour
- Adult: Fringed wings
Management:
- Intercrop with agathi (Sesbania grandiflora) to provide shade which regulates the thrips population
- Do not grow chilli after sorghum
- Do not follow chilli and onion mixed crop
- Sprinkle water over the seedlings to check the multiplication of thrips
- Treat seeds with imidacloprid 70% WS @ 12 g/kg of seed
- Apply carbofuran 3% G @ 33 kg/ha or phorate 10 % G @ 10 kg/ha or
- Spray any one of the following insecticide
| Insecticide | Dose |
| Imidacloprid 17.8 % SL | 3.0 ml/10 lit. |
| Dimethoate 30 % EC | 1.0 ml/lit. |
| Emamectin benzoate 5 % SG | 4 g/10 lit. |
| Ethion 50 % EC | 2.0 ml/lit. |
| Fipronil 5 % SC | 1.5 ml/lit. |
| Oxydemeton –Methyl 25 % EC | 1.0 ml/lit. |
| Phosalone 35 % EC | 2.0 ml/lit. |
| Spinosad 45 % SC | 3.2 ml/10 lit. |
| Thiacloprid 21.7 % SC | 6.0 ml/10 lit. |
Source-
- TamilNadu Agritech Portal
