Strains of Colletotrichum coffeanum Noack Causing Coffee Berry Disease in Angola and Malawi with Characteristics Different to the Kenya Strain

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Abstract
Strains of Colletotrichum isolated from berries of Coffea arabica from Angola and Malawi were identified as C. coffeanum causing coffee berry disease (CBD). The isolates were highly aggressive to berries of the cultivar ‘Catimor’ and produced high numbers of acervuli and extremely large masses of pink conidia when cultivated in the dark. These strains are apparently different in aggressiveness and morphology to those described in the past from Kenya.