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Witches' broom of cocoa in the piedmont region of Colombia: dynamics of the witches' broom production and latent period



Witches' broom of cocoa in the piedmont region of Colombia: dynamics of the witches' broom production and latent period



Agronomia Colombiana 8(1): 123-138



Dynamics of witches' broom formation, the active and latent periods of witches' brooms and the capacity for regeneration after removal were studied on 3 hybrid plantations with 5, 7 and 12-year-old cocoa trees and native 25-year-old trees during 1979-86. A relationship was found between initial inoculum and infection rate. A relatively constant growth of witches' brooms was observed on the plantations. The latent period lasted between 14-54 weeks and the active period lasted for 4-6 weeks.

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