The antifungal potentials of jatropha curcas l. On management of fusarium wilt Of tomato in fadama lands of sokoto, north western nigeria (fusarium oxysporum f. Sp. Lycopersici)

In present study, Fusarium oxysporum F. sp. Lycopersici were isolated from infected tomato plants in Fadama lands of Sokoto metropolis and identified based on morphological and cultural characteristics. The in vitro efficacy of Jatropha curcas L. aqueous and ethanol of seed and leaf extracts at concentrations, 5, 10, 20, 40 and 160 mg/ml were tested against F. oxysporum using poison food techniques. The result showed growth impairment in all extracts. Highest inhibition were recorded in ethanol extracts of seed and leaf 92.2 and 90.2% followed by water extracts 71.7 and 58.3% at 160 mg/ml. Low inhibition were recorded at 5 and 10 mg/ml aqueous extracts. The in vivo experiment showed that treatment with J. curcas seed extract recorded 13.6% disease incidence compared with control 91.4%. A significant (p<0.05) in extract concentration activities were observed. The findings indicate promising potentials of J. curcas in management of fungal diseases.