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TNAU Agritech Portal :: Crop Protection

Pigeonpea cyst nematode : Heterodera cajani


  • Infected plants show yellowing, stunting, poor vigour and pod formation. Several crops like pigeonpea, cowpea, mungbean, soybean, black gram and sesame are seriously damaged by the nematode.
  • At seedling stage of plant, pearl-like or lemon-shaped white female can be found attached with roots.


  • Summer ploughing of fields during hot months.
  • Crop rotation with non host crops for 2-3 years.
  • Soil application Pseudomonas fluorescens or Trichoderma viride @ 2.5 kg/ha at the time of sowing.
  • Seed treatment with Pseudomonas fluorescens and Trichoderma viride @ 5+5 g/kg seed.

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