Excerpt from Bark Beetles of the Genus Hylastes Erichson in North America Various species of the genus, are attracted in great numbers to sawmills and to piled green lumber. Here they may be taken, not only in flight, but on the underside. Of freshly sawn boards and slabs, where they feed on the inner bark, in which they often attempt to breed. Newly emerged adults often. Feed upon the tender bark of young pines and spruces, and where a heavy beetle population occurs near a forest nursery or young plantation many trees may be killed by beetles girdling the bark or actually severing the stem at or below the root collar. In larger treesthey are often found in roots several inches below the soil surface. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.