Bio-control of rice sheath blight through antagonists

In vitro assessment of four biocontrol agents revealed promising effect of Trichoderma viride (Bangalore isolate) followed by T harzianum (Bangalore isolate) and T harzianum (Bhubaneswar isolate) in inhibiting the mycelial growth and sclerotial production of S8 isolate of Rhizoctonia solani. In pot culture experiment on rice variety Tapaswini the bioefficacy of T viride (Bangalore isolate) was observed to be significantly higher followed by Gliocladium virens (Bhubaneswar isolate). Among the biogents, Bangalore isolate of T viride was found very effective in restricting the growth and sclerotia production of R.solani by 67.94% and 68.62%, respectively as compared to that of the control