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BRINJAL :: MAJOR PESTS :: ASH WEEVILS



 

4. Ash weevils: Myllocerus subfasciatus, M. discolor, M. viridanus, M. maculosus (Curculionidae: Coleoptera)

Damage symptoms

Notching of leaf margins by adults.  Grubs feeds on roots resulting in wilting and death of plants.

 

Bionomics
500 eggs in soil, 6-7 days.Grub: 30-45 days; Pupa: Pupates in soil in earthern cocoons; Adult: 10-12 days. M. subfasciatus: Brown; M. discolor: Brown and white spots M. viridanus: Small light green weevil

 

Management

  • Collect and destroy adult weevil.
  • Apply lindane 1.3 D before planting @ 25 kg/ha
  • In endemic areas apply carbofuran 3G @ 15 kg/ha, 15 days after planting.
  • Spray carbaryl 50 WP 2 kg + wettable sulphur 2 kg or endosulfan 35 EC 1.5 L or malathion 50 EC 1.5 L

Carry to pearl millet ?