Bacteriophage have been proposed as an alternative to pesticides to kill bacterial pathogens of crops. However, phage-biocontrol outcomes are still highly variable and poorly understood in natural rhizosphere microbiomes at timescales considering both ecological and evolutionary processes. However, the efficacy of phage-biocontrol is variable and poorly understood in natural rhizosphere microbiomes at timescales considering both ecological and evolutionary processes. We studied the biocontrol efficacy of different phage combinations on Ralstonia solanacearum infection in tomato. Increasing...