Biocontrol potential of Trichoderma harzianum and Pseudomonas fluorescens with organic amendments against tomato wilt caused by Fusarium oxysporum f. sp. Lycopersici

Three organic amendments viz, Farm yard manure (FYM), Pressmud and Vermicompost inoculated with talc based formulations of Trichoderma harzianum (2x10 7 cfu/g) and Pseudomonas fluorescens (2x10 7 cfu/g) and suspensions of both the formulationswere evaluated as soil treatmentand seedlings treatment for the control of tomato wilt caused by Fusarium oxysporum f. sp. lycopersici in field condition. Vermicompost inoculated with Trichoderma harzianum and Pseudomonas fluorescens as soil treatment were found to be more effective in controlling of the wilt disease up to 73.46% and 74.71% respectively. FYM inoculated with both the formulations was least effective (40.41% and 53.90%). Seedlings treatments with water suspension of both the formulations were found to be less effective than soil treatments. However, P. fluorescens was at par with T.harzianumin the mycelial growth suppression of wilt pathogen under laboratory condition.