Treatment of Green Logs infested by Exotic Pest: Case Study of the Emerald Ash Borer: Agrilus planipennis Fairmaire

摘要

Introduction More recently, the Great Lakes region was infested with the emerald ash borer (EAB), Agrilus planipennis (Coleoptera: Buprestidae). This insect was discovered in southeastern Michigan in the summer of 2002 (Poland and McCullough 2006). It is largely believed that infested crates, dunnage or pallets were the transportation mechanism that brought larvae or adult insects into the region (Haack et. ai. 2002). Since then the beetle has been identified throughout most of Michigan's Lower Peninsula, and in smaller occurrences in Ohio, lllinois, Indiana, Maryland and southern Ontario, Canada. It is estimated that 25 million ash trees have been infected or killed in Michigan alone (roughly 2% of the state's 850 million ash trees)(Poland and McCullough 2006). in the U.S. as a whole, more than 8 billion ash trees, comprising 16 species and approximately 7.5% of the nation's hardwood volume, are at risk (Poland and McCullough 2006). Ash appears to be the only tree species that EAB will infest in North America, though this was not true in its homeland (Anulewicz et. al. 2005).