Insect Pests of Fruit, Plantation, Medicinal & Aromatic Crops (2+1)

5. Aphid

5. Aphid - Aphis punicae Pass. ( Aphididae: Hemiptera)

Damage

• Both nymphs and adults infest the leaves causing curling yellowing of leaves and wilting of terminal shoots and premature fruit drop.
Bionomics

• The aphids are greenish brown in colour.
  
• The winged as well as wingless form reproduces partheneogenetically and is viviparous.




Management

• Prune and burn the infested as well as water shoots to check the further multiplication.
• Spray dimethoate 30 EC at 1.75 ml or monocrotophos 36 SL at 1 ml or oxymteyl demeton 25 EC at 1 ml or imidachloprid 200 SL at 0.4 ml flitre of water 2 - 3 times at an interval of 10-12 days.
• Apply carbofuron 3 G at 130 g fplant to control this pest effectively.
• Releases of first instar larvae of green lace wing bug. Chrysoperla carnea at 15 larvae f flowering branch four times at 10 days interval starting from flower initiation during April.