In vivo suppressive effect toward Fom and Xc growth was demonstrated using the modified technique of Larkin and Fravel (1998). At the transplant, Cucumis melo (cultivar ‘‘Amarillo Canario’’) and Solanum lycopersicum (cultivar ‘‘Raf’’) seedlings were treated with the antagonistic microorganisms and planted in pots (volume 1.5 L) with a commercial substrate based on vermiculite (Projar) and peat (Kekkilä LSM 1W) at 3:1 ratio.