摘要 : Some plant species and antagonistic microorganisms were tested for effective management of wilt disease of pigeon pea, caused by <i>Fusarium udum</i> [<i>Gibberella indica</i>]. Fresh leaf extracts of <i>Azadirachta indica, Datura... 展开 Some plant species and antagonistic microorganisms were tested for effective management of wilt disease of pigeon pea, caused by <i>Fusarium udum</i> [<i>Gibberella indica</i>]. Fresh leaf extracts of <i>Azadirachta indica, Datura fastousa</i> [<i>D. metel</i>], <i>Tagetes erecta, Eucalyptus citriodora, Aegle marmelos</i> and <i>Mimusops elengi</i>, each at 5%, were used. The dominant rhizosphere fungi, i.e. <i>Trichoderma viride, T. harzianum</i> and <i>Aspergillus niger</i>, were used as the biological control agents. The extract of <i>A. indica</i> was the most effective in inhibiting the mycelial growth (67.8%) of <i>F. udum</i>, followed by <i>D. fastousa</i> (61.2%), <i>Tagetes erecta</i> (52.6%), <i>E. citridora</i> (52.2%), <i>A. marmelos</i> (47.9%) and <i>M. elengi</i> (45.9%). The maximum inhibition of radial growth of <i>F. udum</i> was observed with <i>Trichoderma viride</i> (83.48%), followed by <i>Aspergillus niger</i> (52.3%) and <i>Trichoderma harzianum</i> (35.8%). 收起