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Thrips: Thrips simplex

Thrips: Thrips simplex Symptom of damage Deformities and discolouration of lily flowers and corms (bulbs) Attacked- buds and flowers remain closed or open irregularly. Infested surfaces show unnatural glistening in whitish grey colour. Identification of the pest Egg - opaque white, smooth and bean shaped, deposited in the leaf tissue and corms. Adult - milky-white, which later turn brown Wings have a light transverse band near the base. Management Storing of infested corms at 20c for 6 weeks. Hot water treatment - 460c completely kills thrips on corms. Spray acephate 0.1% 2-3 times at 10 days interval. Spray malathion 1ml (or) carbaryl 50 WP 2g /lit of water before the bud initiation.

Symptom of damage

  • Deformities and discolouration of lily flowers and corms (bulbs)
  • Attacked- buds and flowers remain closed or open irregularly.
  • Infested surfaces show unnatural glistening in whitish grey colour.

Identification of the pest

  • Egg - opaque white, smooth and bean shaped, deposited in the leaf tissue and corms.
  • Adult - milky-white, which later turn brown
  • Wings have a light transverse band near the base.

Management

  • Storing of infested corms at 20c for 6 weeks.
  • Hot water treatment - 460c completely kills thrips on corms.
  • Spray acephate 0.1% 2-3 times at 10 days interval.
  • Spray malathion 1ml (or) carbaryl 50 WP 2g /lit of water before the bud initiation.