Vol. 12, Issue 8 (2023)

Author(s):
M Jeevidha, GV Sible, Anit Cyriac, Athira Nair, NV Radhakrishnan, Joy Michal Johnson, Susha S Thara and T Anuradha

Abstract:
In this study, five novel isolates of Trichoderma viz., TRMW-2, TRKR-2, TRPN-3, TRPN-11 and TRPN-17 from virgin forest soils of different agro-climatic zones of Kerala were evaluated for its potent antagonistic efficacy against Fusarium wilt of vegetable cowpea. Based on the in vitro studies the effective isolates TRKR-2, TRPN-17, TRPN-3, consortia of isolates TRKR-2 and TRPN-17 and consortia of isolates TRPN-3 and TRPN-17 were selected for the in vivo studies. In the present study, Trichoderma isolates TRKR-2, TRPN-3, and consortium of TRPN-3 and TRPN-17 were found effective against Fusarium wilt of vegetable cowpea under field conditions. The efficacy of the isolates against other soil-borne diseases of vegetable cowpea and species level identification need to be explored.