Cabbage aphid: Brevicoryne brassicae
Symptoms of damage:
- Yellowing
- Crinkling and cupping
- Distorted primordia
- Presence of white cast skin at the base of the plant
Identification of pest:
- Nymphs and adults yellowish green with wavy white filament over the body
Management:
- Install yellow sticky trap @12 no/ha to monitor “macropterous” adults (winged adult).
- Spray neem oil 3 % with 0.5 ml Teepol/lit
- Spray any one of the following insecticide
Insecticide
|
Dose |
Azadirachtin 0.03% WSP (300 ppm) | 5.0 g/lit. |
Dimethoate 30 % EC | 6.0 ml/10 lit. |
Malathion 50 % EC | 1.5 ml/lit. |
Phosalone 35 % EC | 1.5 ml/lit. |
Quinalphos 25 % EC | 1.0 ml/lit. |
Source-
- TamilNadu Agritech Portal