A comparative study of fungicides and biocontrol agents on the growth and sclerotial production of rhizoctonia solani and sclrotium oryzae

The Phytopathogenic fungi Rhizoctonia solani and Sclrotium oryzae were isolated from the diseased rice plants. Nine fungicides and three biological controls were evaluated against the phytopathogenic fungi. Among nine fungicides screened eight fungicides were found to be 100% inhibition to both the test fungi, except the fungicide copper oxychloride could not inhibit the growth of the pathogenic fungi. However, the fungi could not produce Sclerotia at all. Among the bioagents, T. hamatum and T. harzianum could be completely overgrown R. solani. While all the biocontrol agents could grow 75% over S. oryzae T. viride could not inhibit completely the sclerotial production of R. solani. However S. oryzae failed to produce sclerotia in all the three biocontrol agents treated plates. Hence here is a scope to integrate bio agents for eco- friendly management instead of chemicals of stem rot and sheath blight disease of rice.