Aphid is a small, soft bodied insect that can be yellow, brown or black colour.
They usually sucking from the plant by forming colonies at the corners of small leaves and release sticky honeydew, which increases the chances of fungal diseases.
Leaves and twigs may wither or become yellow due to severe infection.
To protect against Aphid pests, spray 100 gram Thiamethoxam 25 WG or 100 ml Imidacloprid 17.8% SL with 200 liters of water per acre.
Use Beauveria bassiana 1 kg per acre by biological means or can also be used in combination with the above pesticide.