Insect pests of senna
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Crop: Senna
S.N: Cassia angustifolia
Family: Caesalpiniaceae
Pests |
Important pests
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1. Green leaf eating caterpillar, Catopsilia pyranthi, Eurema hacabe
Symptom of damage
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Identification of the pest
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- Larva – cylindrical, green in colour with yellow colour bands
- Adult - upper surface of wings white in colour
- Male – black tip present on the fore wing
- Female - Black margin around each wings and brown specklets
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Larva |
Adult |
Management
- Hand picking
- Destruction of infested pods along larva
- Spray application of NSKE 5% or Bt formulation of 2gm/lit of water
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2. Pod borer, Etiella zinckenella
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Symptom of damage
- Make minute holes on the pods and attack the seeds.
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Bore hole |
Feeding injury with pupa |
Identification of the pest
- Egg - small,elliptical,white,laid at junction of calyx and pod
- Larva - reddish pink dorsally, pale greenish ventrally
- Adult - greyish, brown moth distinct pale white band present on the wings
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Larva |
Adult |
Management
- Hand picking
- Destruction of infested pods along larva
- Spray BT – 0.1% @ 50% flowering stage
- Field release of Trichogramma chilonis @5 cc/ha
- Use light trap at 1 /ha
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Source
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