Social networks of stakeholders are necessary to foster public support for classical biological control for nature. Drawing from recent scholarship in policy-relevant social science fields, this article describes two key concepts that can improve science communication strategies to support invasive species management and biocontrol: lay public risk perception, and public engagement with science. This article then recommends a fundamental communication strategy: construct public trust in invasive species control efforts using public engagement processes that link trustworthy messengers and appropriate messages with the public. It draws examples from biocontrol projects that used pathogens as the natural enemy of choice, but more broadly seeks to inform efforts to engage the public about the use of classical biocontrol agents in nature conservation efforts.