Evaluation of fungicides and chemicals against Rhizoctonia bataticola caused charcoal rot of soybean (Glycine max (L.) Merrill)

Abstract

A laboratory experiment conducted to evaluated five fungicides (Carbendazim, Thirum, Carboxin, Thiophanate-methyl and Pyroclostrobin), two chemicals (Salicylic acid and ammonium molybdate) and their combination on mycelium growth of Rhizoctonia bataticola at 100, 200 and 500ppm during year 2012-13 at R.A.K. College of Agriculture, RVSKVV, Sehore (M.P.). All five fungicides significantly reduced the growth of Rhizoctonia bataticola. Fungicides thiophanate methyl + pyroclosrobin could check the growth of fungus completely at all concentration, while the carbendazim, carboxin and salicylic acid did so at 200ppm and 500ppm while the pyroclostrobin and thirum were effective at 500ppm only. Ammonium molybdate was found less effective against Rhizoctonia bataticola in in-vitro.