Sunflower Charcoal Rot

Sunflower Charcoal Rot: Macrophomina phaseolina

  • Charcoal rot is of economic importance, particularly in the arid areas.
  • The most common symptom of the disease, under field conditions is the sudden wilting of plants, usually after pollination.
  • Early symptoms are not visible on infected plants, but they become weak, mature early and when dry, show a presence of black ashy discolouration of the stem.
  • Black microsclerotia are formed in huge number on the affected portion.
  • Sometimes the disease causes seedling blight, damping off, root rot or basal stem rot.
  • Soil application of P. fluorescens or T. viride – 2.5 Kg/ha + 50 Kg of well decomposed FYM or sand at 30 days after sowing.
  • Spot drenching with Carbendazim @ 1 g/ litre



  • TamilNadu Agritech Portal.
Show Buttons
Hide Buttons