A new study estimates that over the next 30 years, 1.4 million street trees will be killed by invasive insects, costing over 900 million dollars to replace. The findings are published in the British Ecological Society's Journal of Applied Ecology.

Researchers from McGill University, the USDA Forest Service Southern Research Station and North Carolina State University have made the first nationwide spatial forecast of street tree mortality from invasive insects, using data from roughly 30,000 urban areas across the United States.