Fall armyworm Spodoptera frugiperda
| Fall armyworm Spodoptera frugiperda | |
| Symptoms of Damage Windowing symptom Heavy defoliation and large amount of faecal matter in the plant whorl. Bore holes in the developing internodes, damage on ear head. Identification of insect pests : Egg: Dome shaped with flattened base. Larva: Greenish with black head later darker, four black spots at tail end, White inverted “Y” mark on head. Pupa: Obtect type, reddish brown in color. Adult: Forewing: Male: brown Female: Grayish brown Hind wing: Male and Female: Iridescent silver-white Central whorl with fecal elle p t and larva Series of holes Defoliation Economic threshold level: ETL: 10% infested fruiting parts or one egg or one larva/plant. Integrated Management Deep ploughing and application of neemcake @ 250 kg per ha. Timely sowing and avoid staggered sowing. Follow crop rotation Seed Treatment: Thiamethoxam 30 FS @ 10g or Beauveria bassiana @ 10 g per kg of seed or cyantraniliprole 19.8 % + thiomethoxam 19.8 % @ 4 ml/kg seed Border crop: cowpea, sunflower, gingelly and marigold Spray with Azadirachtin 1500 ppm at early stage. Male Female | |
| Egg | |
| Larva | |
| Pupa | |
Symptoms of Damage
- Windowing symptom Heavy defoliation and large amount of faecal matter in the plant whorl. Bore holes in the developing internodes, damage on ear head.
Identification of insect pests :
Egg
- Egg: Dome shaped with flattened base. Larva: Greenish with black head later darker, four black spots at tail end, White inverted “Y” mark on head. Pupa: Obtect type, reddish brown in color. Adult: Forewing: Male: brown Female: Grayish brown Hind wing: Male and Female: Iridescent silver-white
Larva
Pupa
Central whorl with fecal elle p t and larva Series of holes Defoliation
Economic threshold level:
- ETL: 10% infested fruiting parts or one egg or one larva/plant.
Integrated Management
- Deep ploughing and application of neemcake @ 250 kg per ha. Timely sowing and avoid staggered sowing. Follow crop rotation Seed Treatment: Thiamethoxam 30 FS @ 10g or Beauveria bassiana @ 10 g per kg of seed or cyantraniliprole 19.8 % + thiomethoxam 19.8 % @ 4 ml/kg seed Border crop: cowpea, sunflower, gingelly and marigold Spray with Azadirachtin 1500 ppm at early stage.
Male Female