Wooden Shipping Pallets
Wooden shipping pallets are used to package and support shipments of goods from overseas. The wood that is used in the pallets may come from trees in Asia, Europe, or South America. Although the wood in these pallets can be treated, shipping pallets and other wooden packaging materials have the potential to carry exotic invasive pathogens and insect pests that can kill trees in North America.
This is how Emerald Ash Borer and Asian Long-horned Beetles arrived in Ontario.