Of the beetles in Oregon, the biggest is the ponderous borer beetle, with an adult reaching a length of about 2 inches. Next on the list in terms of size is the Japanese borer beetle, an invasive pest feeding on fruits, flowers, and foliage of plants like rose and grapevines. The several borer beetle species also thriving here drill holes in woods of, particularly dead trees. When it comes to household pests, the carpet beetles top the list, infesting carpets, clothes, blankets, fur, and so on.
