Many beetle species in the Cerambycidae are serious pests of trees in forests, plantations, and ornamental settings world wide. Controlling the larva can be difficult because they develop within the woody tissues of host trees. Natural enemies, particularly parasitoids, can be important in regulating populations of wood-boring beetles, and so have great potential as biological control agents. To assess the impact of natural enemies on populations of endemic woodboring beetles, we felled trees of three species in plantation settings, characterized the communities of woodborers that colonized them, identified natural enemies that attacked them, and estimated mortality rates. Our findings may have applications in identifying endemic species of natural enemies that could be encouraged to suppress invasive exotic woodborers in the future.