These data represent a meta-analysis testing if Streptomyces biological control agents reduce disease caused by fungal plant pathogens and identify factors that alter biological control efficacy of these bacteria. Meta-data and control and treatment data were compiled from 160 studies representing 44 publications that tested the effect of Streptomyces on diseases caused by fungal plant pathogens of agronomic and horticultural crops. Effect sizes and variances were calculated based on the log-response ratio. Resources in this dataset:Resource Title: Meta-data and effect size calculations used in meta-analysis. File Name: AgDataCommonsEffectSizes.txtResource Description: Descriptor of column headers are listed below. Reference: Original publication reporting data from a given study Disease pressure: Level of disease pressure when biological control agent was tested Plant: Species of plant Pathogen: Species of pathogen Disease: Type of disease Inoculation method: Method used to apply bacteria for biological control Environment: Environment that experiments were conducted under LRR: Log response ratio effect size estimated from individual studies VarianceL Variance estimate associated with effect size calculation