BUD ROT
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| Initial Stage | Middle Stage |  |
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| Dead Palm |
Causal organism : Phytophthora palmivora
Symptoms
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Withering of the spindle leaf and rotting of the basal portion of the spindle emitting a foul smell. |
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Inner leaves fall away one by one leaving only outer whorl of matured leaves in the crown. |
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Ultimately the palm succumbs to the disease with the death of the growing bud. |
Disease management
Prophylactic treatment (May end)
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Apply mancozeb solution (5g mancozeb in 300 ml water) and keep 2 perforated mancozeb sachets each containing 5 g mancozeb in the two innermost leaf axils just before the onset of rainy season. |
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Observe all the palms in the garden once in 15 days during rainy season and there after till the end of December. |
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Identify bud rot incidence in the initial stage. |
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Follow prophylactic treatment with mancozeb at bi-monthly interval. |
Curative treatment (after the occurrence of the disease)
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Remove infected tissues completely in the early stage of disease |
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Immediately after removing the infected tissue, pour mancozeb solution (5g mancozeb in 300 ml water) to the wound and inner most leaf axils. Keep 2 perforated mancozeb sachets each containing 5 g mancozeb in the two innermost leaf axils |
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Cover the wound with a polythene sheet to prevent entry of rain water. The protective covering has to be retained till normal shoot emerges |
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Destroy the infected tissues removed by burning or deeply burying in the soil. |