Symptomatology and management of crown rot disease of arecanut palm (Areca catechu L.)
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Date
2008
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Publisher
Indian Society for Plantation Crops
Abstract
Bud and crown rot diseases of arecanut palm (Areca catechu Linn.) are fatal diseases caused by Phytophthora meadii McRae. The pathogen could be isolated from the lesioned tissues of the bud, leaf sheath, developing inflorescence and internal tissues of the tender stem. Experiments were carried out using challenge inoculated one year old arecanut seedlings raised in polythene bags. Out of the three systemic fungicides, phosphorous acid (0.3%) was found superior to tridemorph and hexaconazole. Among the contact fungicides, propineb was found effective in checking the growth of P.meadii on arecanut seedlings. In a trial carried out at four different locations with phosphorous acid and tridemorph each at 0.3% conc. applied as soil drenching or as combination of soil drenching and spraying gave total control of the disease in adult palms when treated in the initial/middle stages of the disease.
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Keywords
bud /crown rot, hexaconazole, phosphorous acid, Phytophthora meadii, propineb, tridemorph
Citation
Journal of Plantation Crops, 2008, 36 (2): 95-97