Thrips: Scirtothrips bispinosus 
Symptoms of damage

• Thrips prefer young leaves and buds.
• Leaf surface becomes uneven, curled and matty.
• Feeding marks on the unopened buds - parallel brown lines on the leaves.

Identification of the pest

• Adults - brown abdomen.

Management

• Spary any one of the following insecticides

• Dimethoate 30 EC 2 ml/lit. 
• Chlorpyriphos 20 EC 2 ml/lit. 
• Deltamethrin 2.8 EC 120 – 150 ml/ha
• Azadirachtin 5 W/W 200 ml/ha
• Quinalphos 25 EC 760 ml/ha

Image source:

http://datab.us/i/Scirtothrips