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Production · Protection · Nutrients · Water
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Anthracnose: Gloeosporium psidii

Symptoms :

  • The most characteristic symptoms appear during the rainy season as small pin-head sized spots on the unripe fruits.
  • They gradually enlarge to form sunken and circular, dark brown to black spots.
  • The infected area of the unripe fruits becomes harder and corky.
  • Acervuli are formed on fruit stalks.
  • The pathogen remains dormant for about three months in the young infected fruits.
  • In moist weather, acervuli appear as black dots scattered throughout the dead parts of the twigs.
  • The conidia are spread by wind or rain.

Management:

  • Spraying the trees with Bordeaux mixture 0.6 % or Copper oxychloride 0.2% before the onset of monsoon reduces the disease incidence.

Image source:

Initial symptomCircular black spotsCorky fruit