The efficacy of Trichoderma harzianum based Tricho-inocula, Tricho-compost and seed treating chemical fungicide Provax was tested against foot and root rot diseases of lentil caused by Sclerotium rolfsii and Fusarium oxysporum in two different agro-ecological zones of Bangladesh Agricultural Research Institute (BARI), Gazipur and Pulses Research Station, Madaripur of Bangladesh. Tricho-compost was prepared with a mixed substrate of cow dung, rice bran and poultry refuse colonized by T. harzianum. The results exhibited that the seedling mortality of lentil was significantly reduced by the Tricho-inocula, Tricho-compost and Provax. The yield of lentil was sharply increased over control due to the T. harzianum formulations and Provax in both locations. Among the treatment, Tricho-compost was found more efficient in the reduction of seedling mortality and acceleration of plant growth with increased grain yield of lentil under S. rolfsii and F. oxysporum inoculated pot culture as well as field experiments in two different agro-ecological zones of Bangladesh.

Keywords: Trichodermaharzianum, Sclerotiumrolfsii, Fusarium oxysporum, lentil, Lens culinaris.