10.22376/ijpbs.2019.10.1.p1-12 Volume 2 Issue 4 2011 (October - December) Management of wilt of pigeonpea by soil application of fungicides are economically non-viable. The potential role of biocontrol agent, lessThan i greaterThan Trichoderma, lessThan /i greaterThan in the management of many soil borne plant pathogens are well documented. Hence, eleven different isolates of lessThan i greaterThan Trichoderma lessThan /i greaterThan were assessed lessThan i greaterThan in vitro lessThan /i greaterThan for their efficacy against lessThan i greaterThan Fusarium udum. lessThan /i greaterThan The local strain of lessThan i greaterThan Trichoderma lessThan /i greaterThan was equally efficacious against all the lessThan i greaterThan Fusarium udum lessThan /i greaterThan isolates. Soil application of talc based preparation of this potential isolates was proved better to its seed treatment. The highest reduction in wilt was resulted in talc based preparation of promising local strain of lessThan i greaterThan Trichoderma lessThan /i greaterThan compared to market products. S. I. Patel , R. L. Patel, A. G. Desai And D.S.Patel Pigeonpea, wilt, Fusarium udum, Trichoderma 215-222