Contributed by Scott George, posted 12-19-19: A recent study by the Invasive Species Centre in Ontario, Canada found that an estimated $50.8 million is spent annually on invasive species management in the province. More than half of this expenditure relates to Emerald Ash Borer.  Additionally, the impacts of invasive species to agriculture, fisheries, forests, healthcare, tourism, and recreation industries is estimated at $3.6 billion per year. These staggering numbers underscore the importance of prevention and early detection in invasive species management. A summary of this study is available here and a fact sheet is available here.