Agriculture
Crop Production :: Oil Seeds :: Groundnut

 

Jewel beetle: Sphenoptera perotetti
Symptoms of damage

  1. Grub burrows into the stem near the soil surface.
  2. Wilting of plants in patches.
  3. Dead plants, come easily when pulled up 

Identification of the pest

Eggs: Laid on the stem.
Grub: Globular head and elongated, dorso-ventrally flattened body without legs.
Pupa: pupates in stem.

Adult:  Dark shiny beetle, 10 mm long and 3 mm wide.

Management

  • Deep summer ploughing to exose the pupae to sun light and predation by birds.
  • Use well decomposed organic manure.
  • Destroy infested plant stems
  • Apply malathion 1.5 DP 10 kg/ac in endemic areas

 

 

 

 

 

 

 

 

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