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Horticultural crops :: Plantation :: Arecanut

Inflorescence die back and button shedding: Colletotrichum gloeosporioides

Symptoms:

    Disease appears on rachillae of the male flowers and then in the main rachis as brownish patches which soon spread from tip downwards covering the entire rachis causing wilting.
  • The female flowers of the infected rachis shed and the whole inflorescence show ‘die back’ symptom.
  • The fruiting bodies of the fungus, (conidia ) appear  as concentric rings in the discolored areas.
  • The disease is severe mostly during dry condition. (February – March)
Browinish tips Browinish patches Willting

Management:

  • Spraying with COC 0.25% or Mancozeb 0.2%

Image Source:

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