Fusarium solani ATCC 36031 (Davies Diag- nostic, South Africa) was used for the research. Fungal strains and inoculum was prepared by culturing it on Potato dextrose agar (PDA) for 10 days in Petridishes. The microconidial suspension of F. solani was prepared by pouring 1 ml of sterile water in each petri dish in order to loosen the spores from the medium. The inoculum was then scrapped with the aid of a sterile spatula from the surface of the Petri dishes in other to be sure of the viability of the cells and 1 ml was made up to 20 ml in sterile bottles. The bottles were properly shaken in the rotary shaker to dislodge the spores from the mycelia of the fungi to get a concentration of 106 spore concentration. The spore concentration was adjusted to the required concentration of 109 spores/ml by taking 1ml of the spore suspension and diluting with 9 ml sterile distilled water and then injected into sterile soils in the greenhouse