http://www.jnkvv.nic.in/IPM%20project/insect-groundnut.html

Chemical Control of tobacco caterpillar

• Apply insecticides only if the insect population crosses the ETL.
• Apply Methyl parathion 2% dust @ 20 kg/ha or spraying of monochrotophos 36 SL or Quinolphos 25 EC @ 1500 ml or Endosulfan 35 EC @1250 ml or Trizophos 40EC @ 800 ml in
  700-800 lit of water.
• Poison bait with monocrotophos 36 SL or carbaryl, rice bran, jaggery and water can be used to control the grown up larvae.