Threats to the US

Japanese Wax Scale

Japanese wax scale is a soft scale insect native to east Asia that has been introduced across Europe and Asia. It is not known to be in the US, but poses a serious threat should it be introduced, especially in forested and citrus-growing regions.

Mediterranean Pine Shoot Beetle

The Mediterranean pine shoot beetle feeds on pine trees. In years of drought or other stress, they can kill thousands of acres of pines. A closely related pine shoot beetle, Tomicus piniperda, has already caused substantial damage to forests in the northern US. Tomicus destruens occupies the climate niche south of T. pinniperda and could cause similar damage in the southern portions of the country. T. destruens is easily moved in wood packing material, and it is so cryptic that an introduction could easily be overlooked (or assumed to be T. piniperda) until it is firmly established and

Oak Splendor Beetle

The oak splendor beetle is closely related to the emerald ash borer. It is not known to be in the US, but poses a serious threat should it be introduced, especially in the oak-rich eastern and western portions of the US. North America has the highest diversity of oaks in the world, and oaks produce acorns that are critical food for many kinds of wildlife. Oak splendor beetles lay their eggs under the bark of oak, chestnut and beech trees. Larvae eat the cambium of the tree, leaving zig-zag shaped galleries beneath the bark.