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Agritech Archive

Production · Protection · Nutrients · Water
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Management : Cultural method

  • Leaf blight causes serious damage in seedlings, leaves and nuts of adult palms.
  • Generally the adult leaves in the outer whorls are affected.
  • The affected leaflets start drying from the tip downwards and exhibit a charred or burnt appearance.
  • Dark grey to brown lesions with wavy to undulated margins appear from the apex of the nuts.
  • The fungus entered in to the kernel through mesocarp, resulting in a decay of the endosperm.
  • The affected nuts were desiccated, shrunken, deformed and dropped prematurely and resulting in nut yield loss up to 10 to 25%.
  • The incidence was noticed throughout the year and maximum incidence was observed during summer months.
  • Spores and the resting structures on the affected portion of the leaves served as inoculum for further spread through wind.
  • Remove and burn the severely affected leaves to avoid further spread.

Biological method

  • Application of 200g Pseudomonas fluorescens along with 50 kg of FYM+ 5 kg of Neemcake/ palm/ year.

Chemical method

  • Spray 1.0 per cent Bordeaux mixture or 0.25 percent Copper oxychloride (2 times at 45 days interval during summer months).
  • Root feeding of Carbendazim 2 g or Hexaconazole/ Tridemorph 2 ml + 100 ml water (3 times at 3 months interval).
Drying of leaf tipsBurnt appearanceInfected kernelInfected tree