Evaluation of efficacy of some botanicals and bioagents against stalk and ear rot pathogen of maize, Fusarium verticillioides

摘要

The efficacy of some botanicals and bio-agents were assessed in vitro as the potential biofungicides against Fusarium verticillioides, the causal organism of stalk rot disease of maize plant. The botanicals used in this study were Morinda lucida (Oruwo) and Tithonia diversifolia (Mexican Sunflower) and the bio-agents used were Trichoderma viride, Trichoderma harzianum, Trichoderma pseudokoningii and Bacillius subtilis. All the plant extracts and antagonistic organisms significantly inhibited the growth of Fusarium verticillioides. However, out of the antagonists, T. viride provided the highest inhibitory effect followed by T. pseudokoningii, T. harzianum, and B. subtilis which was the lowest suppressive antagonist. The extract from T. diversifolia, provided the highest inhibitory effect followed by M. lucida.