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.
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