Coconut (Cocos nucifera)

Tanjore wilt (Ganoderma lucidum)

Symptoms

  • The Characteristic symptom of the disease is the rotting of the basal portion of the stem.
  • The bark turns brittle and often gets peeled off in flakes, leaving open cracks and crevices.
  • The internal tissues are discoloured and disintegrated, emitting a bad smell.
  • Mild bleeding occurs on the basal region.
  • The tissues on the bleeding spots are soft to touch.
  • Extensive damage of the root system following root rotting has been observed. Ultimately the palm dies off.

Management

  • Apply organic manure @ 50 kg palm-1.
  • Apply neem cake @ 5 kg palm-1 year-1.