How to prevent potato crop from thrips

Thrips: – They are small and soft bodied insects and can be found on the upper surface of leaves but mostly on the lower surface of leaves.
With their sharp mouthparts they suck the sap of the leaves, because of this leaves turn brown from margin.
The affected potato plant appears dry and the leaf becomes discolored and curls upwards.
For the control of thrips it is necessary to different chemicals for every spray
Management: – For the prevention of thrips Fipronil 5% SC @ 400 ml / acre or Lambda Cyhalothrin 4.9% CS @ 200 ml / acre or Fipronil 40% + Imidacloprid 40% WG @ 40 gram / acre or Thiamethoxam 12.6% + Lambda Cyhalothrin 9.5% ZC @ 80 ml / acre or Spinosad 45% SC @ 75 ml / acre.
Biological treatment: – As a biological treatment, spray Beauveria Bassiana @ 500 gram / acre.