Efficacy of <I>Trichoderma</I> Spp. against Pigeonpea Wilt Caused by <I>Fusarium udum</I> Butler

S. K. Jayalakshmi; K. Sreeramulu; V. I. Benigi

doi:10.18311/jbc/2003/3995

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Authors

S. K. Jayalakshmi
Agricultural College Bheernarayanagudi 585287, Gulbarga, Karnataka ,IN
K. Sreeramulu
Department of Biochemistry, Gulbarga University, Gulbarga 585106, Karnataka ,IN
V. I. Benigi
Agricultural Research Station, Gadag 585101, Karnataka ,IN

DOI:

https://doi.org/10.18311/jbc/2003/3995

Keywords:

Fusarium udum, Pigeonpea, Trichoderma Spp.

Abstract

Trichoderma harzianum isolated from the rhizosphere of healthy pigeonpea plants in wilt -sick plot and other Trichoderma species collected from different places were screened in vitro and in vivo for their antagonistic effect against the pathogen Fusarium udum. Among the bioagents tested. local isolate of Trichoderma harzianum (LI) was found to he the most promising showing maximum inbibitory effect on the mycelial growth (88.69%) of the pathogen. All bioagents were further tested as seed dressing agents for the control of wilt of pigeonpea. The lowest incidence of wilt (20.37%) was observed in the plots where seed treatment was given with the local isolate of Trichoderma harzianum.