oa African Plant Protection - Antifungal activities of and extracts against , the causal agent of citrus green mould

Volume 19 Number 1
  • ISSN : 1023-3121
  • E-ISSN: 2309-3811



Citrus green mould, caused by , is a serious postharvest disease which affects oranges during storage and in transit. The disease is mainly managed by application of postharvest fungicides. Some plant extracts have been shown to effectively inhibit growth. The aim of the study was to determine the efficacy of methanolic extracts of and on growth and citrus green mould severity under laboratory conditions. and samples were collected from Sekhukhuni district in Limpopo, dried under shade and extracts were prepared using methanol. The final extract powder was used to amend growth medium and to prepare a water-based spray for artificial fruit infection. Both tested plant extracts inhibited growth . All concentrations of had an equally significant effect on the pathogen growth when compared with the control. concentrations displayed varying suppressive effect on pathogen growth. Extracts of both plants were also able to significantly reduce disease severity in artificially infected citrus fruits when compared with the control. In conclusion, these results showed both extracts of and had suppressive effects against .

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