Symptoms of damage :
| Safflower aphid: Uroleucon carthami | |
| Symptoms of damage : Curling and yellowing of tender leaves Secrete honey dew like secretion on upper surface of the leaves and plant parts forming a black sooty mold which hinders photosynthetic activity resulting in stunted growth Finally the plants dry up Identification of the pest : Nymphs: Reddish brown Adults: Large sized, black with pear-shaped body and conspicuous cornicle | |
| Management : Avoid late sowing If the attack is observed in the border rows take control measures Avoid excess use of nitrogen Maintain 2 or 3 rows of Maize and Sorghum around the fields Release of Chrysoperla eggs/grubs @ 1-2/plant Conserve Aphidencyrtus aphidivorus, Micromus cinearis, Ischiodon scutellaris, Harmonia octomaculat and Aphelinus sp Spray dimethoate 30 EC @ 750 ml/ha,40 and 60 days after sowing. Use 500 litres of spray mixture and 20 kg dust formulation/ ha |
- Curling and yellowing of tender leaves
- Secrete honey dew like secretion on upper surface of the leaves and plant parts forming a black sooty mold which hinders photosynthetic activity resulting in stunted growth
- Finally the plants dry up
- Nymphs: Reddish brown
- Adults: Large sized, black with pear-shaped body and conspicuous cornicle
Management :
- Avoid late sowing
- If the attack is observed in the border rows take control measures
- Avoid excess use of nitrogen
- Maintain 2 or 3 rows of Maize and Sorghum around the fields
- Release of Chrysoperla eggs/grubs @ 1-2/plant
- Conserve Aphidencyrtus aphidivorus, Micromus cinearis, Ischiodon scutellaris, Harmonia octomaculat and Aphelinus sp
- Spray dimethoate 30 EC @ 750 ml/ha,40 and 60 days after sowing. Use 500 litres of spray mixture and 20 kg dust formulation/ ha