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The research was conducted on evaluation of biological agents and organic amendments against Macrophomina phaseolina of cowpea at The Department of Plant Pathology, S. D. Agricultural University Sardarkrushinagar, Gujarat during2018-2019. Seven known antagonists were tested in vitro for their antagonism to M. phaseolina using dual culture method. T. harzianum (Sardarkrushinagar) and T. viride (Sardarkrushinagar) were potent antagonists of M. phaseolina. The six organic amendments at three different concentrations were tested against M. phaseolina by poisoned food technique in vitro. Significantly least mycelium growth of M. phaseolina was recorded in the extract of neem cake followed by mustard cake. Vermicompost and Farm yard manure were less effective against M. phaseolina.
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Pandya et al. (2024) studied this question.
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