Within Australia, herbivorous pest insects can exploit eucalypt plantation monocultures and reach damaging population densities. These insects have a suite of co-evolved natural enemies that provide ecosystem services in the form of regulation of pest populations. For most of these pests, little is known about the natural enemies present in plantations and the role they play in population regulation. BiCEP will explore management approaches of relevance to eucalypt plantations everywhere, including augmentative biological control and tritrophic manipulation.