How to manage thrips in onion crop

  • Thrips are small and soft-bodied insects and can be found on the upper surface of leaves but usually on the lower surface of leaves. 

  • With their sharp mouthparts, they suck the sap of the leaves, which causes the leaves to turn brown on the edges. 

  • The affected plant appears dry and the leaf becomes discoloured and curls upwards. This insect is the cause of Jalebi disease in onion crops.

  • For the control of thrips it is necessary to use 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.

  • Biological treatment: As a biological treatment, spray Beauveria Bassiana @ 500 gram/acre.

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