Symptom of Damage

• Leaf laceration under the under surface of leaves.
• Silvery or brown necrotic spots of 3-5 mm.
• Leaf wrinkling and upward curling.
• Distorted leaves with white shiny patches.

Identification Characters and Biology

• Destructive stage: Nymphs and adults.
• Eggs: Minute, kidney shaped laid in slits in leaf tissues. Egg period: 5 days.
• Nymphs - Very minute, slender, yellowish and microscopic
  
• Adult - Small, slender, yellowish to brown with fringed wings

Integrated Management

• ETL: 50 nymphs or adults / 50 leaves
• Avoid planting of cotton near onion fields to prevent the migration of thrips
• Avoid late sowing.
• Treat seeds with Beauveria bassiana @ 10 g/kg.
• Apply nitrogenous fertilizers judiciously
• Spray any one of the following insecticides when pest population reaches ETL: Imidacloprid 17.8% SL 40 – 50 ml/acre or Buprofezin 25%SC 400 ml/acre or Diafenthiuron 50%WP 240 g/acre or Thiacloprid 21.7%SC 40-50 ml/acre or Flonicamid 50% WG 60 g/acre or Thiamethoxam 25% WG 40 g/acre or Fipronil5% SC 600-800 ml/acre.