Bio-management of root rot of pea (pisum sativum l.) Caused by Usarium soalni f. Sp.pisi

The efficacy of three fungal and one bacterial bioagents viz., Trichoderma harzanium, Trichoderma viride, Gliocladium verns and pseudomonas fluorescens were evaluated in vitro conditions against pea root rot pathogen. Among the bio-agents, Trichoderma harzanium proved superior over other bio-control agents by exhibiting a maximum of 17.28 radial mycelial growths as against 89.00 recorded in check. Trichoderma harzanium maximum mycelial growth inhibition of 76.33 and minimum of 66.33 per cent by pseudomonas fluorescens. Zone of inhibition was observed only in Pseudomonas fluorescens within a week’s incubations at 28±2 0C. Soil application based formulation of Trichoderma harzanium, Trichoderma viride, Gliocladium verns and pseudomonas fluorescens effectively control the root rot of pea plant under field condition.