ABSTRACT
In this work “The diversity of fungi in potting soil”. The effective microbiological standard method was used to isolate fungi from four different potted soil samples from four different sites in Owerri, Imo State. An appropriate result was obtained after the inoculation and the incubation in which some fungal growth were observed in macroscopic which are; Aspergillus spp, Geotrichum spp, Penicillium spp., Mucor spp., Trichosporon spp. In conclusion, some fungi are very harmful i.e. they can cause food spoilage, they can also cause disease to plants, animals and even man. In recommendation, potting soils are good inhabitation of fungi and also good sites for the isolation of various fungi which are useful for both agricultural and industrial purpose and they also provide mankind with very useful pharmaceutical products like antibiotics.