. This may indicate that suppressive effects of bacteria are partly because of inhibition of fungal spore germination and/or penetration inside the plant cells as have been shown previously ( Diánez et al., 2007 and Siddiqui et al., 2009). At the lower bacterial cell/fungal spore ratio, a preventive application also generally improved the ability of the bacteria to control B. cinerea lesions. At the higher bacterial cell/fungal spore ratio, there was little difference in control between a co-application ( Fig. 2) and a preventive treatment ( Fig. 4) for B. cinerea. These results indicate that fungal disease pressure and bacterial concentration, as well as timing of the bacterial applications are important factors in the disease control outcome.