- The disease occurs both in young seedlings and grown up plants.
- The lower leaves show yellowing, drooping and premature defoliation.
- The discolored area later turns black and death of plants occur.
- The infected plants can be easily pulled out due to the rotting of the roots.
- Minute dark sclerotia are seen in the shredded bark (collar region and root).
- Large number of brown dots on the stem portion represent the pycnidial stage.
- Prolong dry weather or drought followed by irrigation or rain favours this disease build up.
Management
- Seed treatment with talc formulation of T. viride @ 4g or P. fluorescens @ 1g/kg seed (or) Carbendazim or Thiram @ 2 g/kgNeem cake @ 150 Kg/ha
- 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 gm/ litre
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Field symptom |
Bark shredding |
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