Crop Protection :: Oil Seeds :: Pest of Safflower
Gram pod borer/ Capsule borer: Helicoverpa armigera |
Symptoms of damage:
- In early stage of crop growth larvae feed on leaves and shoot apices
- Later, the larvae shift to the developing capitula
- The symptoms are perforated leaves, perforated involucral bracts, partially or completely eaten capitula in the bud stage and bored developing capitula
Identification of the pest:
- Eggs: Spherical in shape and creamy white in colour, laid singly
- Larva: Shows colour variation from greenish to brown. It has dark brown grey lines on the body with lateral white lines and also has dark and pale bands.
- Pupa: Brown in colour, occurs in soil, leaf, pod and crop debris
- Adult: Light pale brownish yellow stout moth.
- Forewings are olive green to pale brown with a dark brown circular spot in the centre.
- Hind wings are pale smoky white with a broad blackish outer margin
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Management:
- Intercropping with non host crop like wheat or barley
- Avoid chickpea as intercrop
- Excessive application of nitrogen should be avoided
- Ha NPV can be applied at 250-300 larval equivalents/ha
- Conserve Campoletis chloridae, Enicospilus sp, etc
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