In-Vitro Effect of herbicides and fertilizes on Macrophomina phaseolina

Collar rot, root rot and charcoal rot diseases of Soybean (Glycine max L.) caused by Macrophomina phaseolina are major soil borne diseases which are most destructive in nature, During resent investigation various different herbicides and fertilizer were tested under in vitro conditions against this pathogen. Among the different herbicides, quizalophop-p-ethyle 5 EC gave cent per cent inhibition of mycelial growth and sclerotial formation at all concentrations followed by the propaquizafop 10EC (96.05%), oxyfluorfen 23.5EC (88.70%) and oxadiargyl 6EC (82.23%). Among the chemical fertilizers tested, diammonium phosphate was quite effective in inhibiting growth and sclerotial formation at all concentrations, followed by ammonium sulphate (72.20%).