Agricultural crops :: Oilseeds :: Sunflower 
       
        Charcoal Rot : Macrophomina phaseolina 
        
          
            | Symptom | 
           
          
            
              
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Charcoal rot is of economic importance particularly in the arid areas. 
                 
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The most common symptom of the disease, under field conditions is the sudden wilting of plants, usually after pollination. 
                         
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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. 
                         
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Black microsclerotia are formed in huge number on the affected portion. 
                         
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Sometimes the disease causes seedling blight, damping off, root rot or basal stem rot. 
                         
                         
            Management 
            
              - 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
 
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