Gall-forming insects manipulate host plants through the proteins present in their saliva, which play essential roles in reprogramming plant cells. Understanding the salivary composition of these insects is crucial for revealing the mechanisms underlying gall induction and the interactions between herbivores and their host plants. In this study, we utilized an integrated transcriptomic and proteomic approach to explore the salivary proteome of the gall-inducing psyllid, Trioza camphorae.