Antifungal efficacy of Bersama abyssinica extracts against coffee pathogenic fungus Gibberella xylarioides

Twelve Bersama abyssinica extracts were evaluated for antifungal activity against Gibberella xylarioides, a pathogenic fungus responsible for coffee wilt disease (CWD) in Robusta coffee by micro dilution method. All tested extracts were active against Gibberella xylarioides with the Minimum Inhibitory Concentration (MIC) range of 0.19 to 6.25 mg/ml .The methanolic extracts were the most active by exhibited antifungal activity at the MIC of 0.19 mg/ml followed by the chloroform extracts which exhibited activity at the MIC of 0.39 mg/ml .The extracts of leaves, stem bark and root barks of Bersama abyssinica could be a potential source of biological control for managing the CWD since exhibited antifungal activity at very low concentrations.

Author(s): Kilambo D, Shahada F and Chacha M and Mwambela NZ*

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