Non-native, invasive insects and pathogens have had substantial effects on forest ecosystems and, despite large investments in control measures, have resulted in billions of dollars of economic losses. Although there is increasing interest in these invasive organisms, there is little quantitative data on their impacts on the ecosystem services provided by forests or the economic value of these services. These data are critically needed for development of appropriate strategies for the management of non-native forest insects and diseases. The goal of this symposium is to synthesize information and identify gaps in knowledge about the ecological and economic impacts of forest invaders in order to better manage these species. Presenters will summarize impacts of non-native, invasive forest insects and pathogens on ecosystem services, present novel approaches to modeling the distribution of newly introduced invaders, and analyze tradeoffs among management policies. Ideas presented in the symposium were developed during a Distributed Graduate Seminar at the National Center for Ecological Analysis and Synthesis (www.nceas.ucsb.edu/research/dgs).