Ecosystem services are key to human survival. In agriculture, they offer potential to intensify production whilereducing reliance on hazardous inputs, including pesticides. Nectar plants can nourish natural enemies of pests and therebypromote the ecosystem service of biological control. To date, however, the selection of optimal plants has been reliant onlaborious testing of multiple candidate species for use in each new agroecosystem. We report a hybrid meta-analysis ofpublished literature, employing Bayesian network analysis.