The spotted lanternfly is a species of planthopper indigenous to parts of China and Vietnam. It was accidentally introduced into South Korea and has spread invasively to Japan and the United States, where it is often referred to by the acronym "SLF". Its preferred host is the also invasive tree of heaven, but it also feeds on other trees, and on crops including soybean, grapes, stone fruits, and Malus species. In its native habitat, L. delicatula populations are regulated by parasitic wasps.