Biocontrol of Green Mould Disease of Oyster mushroom using (Bacillus amyloliquefaciens)

Abstract

The occurrence of Trichoderma harzianum and T. asperellum in cultivation of oyster mushroom (Pleurotus ostreatus) frequently results in serious crop losses and considerable inhibition of growth of mycelium and fruit bodies of Oyster mushroom, lowering yields substantially. Bacillus amyloliquefaciens strain isolated from groundnuts proved very effective antagonizism of oyster mushroom pathogenic T. harzianum and T. asperellum without having a negative effect on P. ostreatus mycelia. It produced diffusible and volatile organic compounds. The B. amyloliquefaciens strain is a potential biocontrol candidate. This study provides a potential biocontrol agent for Trichoderma green mould. However, field studies of this isolate in oyster mushroom are required to establish its actual performance.