In-Vitro Assay of Neem Seed Formulation Against Fusarium oxysporum, Causal Agent of Basal Plate Rot on Onion

Basal plate rot disease caused by Fusarium oxysporum is one of the most important diseases of onion in Indonesia. Application of fungicide such as soil drench will increase the cost of onion production and may be dangerous for environment. One of techniques to suppress the dispersal of pathogen can be implemented by natural resource which is effective, degradable, and environmentally friendly. Antifungal effect of neem seed formulation was examined by in vitro assay against Fusarium oxysporum. The results indicated that neem seed formulation inhibited the growth of fungi, although the rate of inhibition varied with different concentrations. It was indicated that neem seed formulation is potential to be developed as biofungicide. The 6th International Symposium for Sustainable Humanosphere. Bogor, 15-16 November 2016. Hal. 177-182