Fusarium oxysporum f. sp. lycopersici causing tomato wilt is a common soil borne fungus. Bio-control agents could be used as an eco-friendly approach to effectively control the disease and may be advised to the farmers for profitable organic farming. The fungal (Trichoderma harzianum) and bacterial (Bacillus subtilis and Pseudomonas fluorescens ) biological control agents were tested for their compatibility in vitro to determine whether they can be used in combination. | Compatibility of fungal and bacterial bio-agents and their antagonistic effect against fusarium oxysporum f. Sp. Lycopersici