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Learn Economic Entomology with Rahul

Pod stem fly( Ophiomyia phaseoli, Agromyzida , Diptera)

Damaging stage : maggot

Soybean stem fly outbreak in soybean crops | The Beatsheet

Bean (cowpea) fly (291)

Damaging symptoms:

  • stem become swollen and start to ribbing where maggot and pupa are present .
  • dropping of the tender leaves and seedling wilt .

 

Identification

  • Adult : tiny black fly
  • Maggot : small yellow colored ,legless.

 

Management

  • remove and destroy
  • azadirachtin
  • bacillus thuringiensis 5%WP1000-1250 g/ha
  • Emamectin benzoate 5% SG 220 g/ha

 

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