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Abstract
Fungi cause a lot of ruin of agricultural crops leading to negative impact on economy and health risks to consumers due to the toxin produced by the fungi. Bio-control using plant extracts is an ecofriendly and a promising method engaged in controlling pathogenic fungi. Screenhouse experiment was conducted to study the efficacy of Moringa oleifera as a bio-fungicide for managing Fusarium oxysporium wilt of tomato (Solanum lycopersicum) at the department of Plant Science and Biotechnology, Faculty of Science of Federal University, Oye-Ekiti, Ekiti State. The main objective of the study was to investigate the potential of aqueous M. oleifera extract as bio-control agent in controlling wilt of tomato and to determine the M. oleifera concentration that is most effective against the pathogen under screenhouse condition. The plants were treated for 10 weeks with different concentrations of M. oleifera (25%, 50%, 75%)while water served as the control.The experiment was carried out in a randomized block design (RBD) and designed as PLOT (1, 2, 3 and 4) with four (4) replicates. The investigated growth and yield parameters include shoot height, number of leaves, leaf length and leaf width, number of flowers and number of fruits. Allthe data collected were subjected to Analysis of Variance (ANOVA) and the results revealed that the use of M. oleifera extract was very effective in suppressing F. oxysporium in tomato. The average total yield per time was obtained in tomato plants treated with 75% M. oleifera extract, followed by those treated with 25% and 50% extracts respectively, while the lowest was observed from the control plants.
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