December 2012

Removal of affected tissues on the coconut stem with a chisel and smearing with warm coal tar or bordeaux paste over the chiselled portion controls stem bleeding. If the disease is detected when the central shoot withers, application of 10 per cent bordeaux paste after thorough cleaning and removal of infected plant parts can reduce further spread. The treated portion has to be covered with a plastic sheet to prevent washing of the paste during rains. Spraying one per cent mixture twice a year reduces leaf rot infestation. Spray must be in fine mist form otherwise it will coalesce and trickle down without sticking properly on the nut surface.

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