Ralph hopping e p felt (1 risultati)

Paperback. Condizione: New. Print on Demand. This book provides a thorough survey and practical guide to insect control problems in District 5 of the United States National Forest Service. The author covers a wide range of topics including identifying and distinguishing the numerous species of insects that attack the region's conifers, describing the geographical and seasonal variation of infestations, and explaining the methods used by the Forest Service to control and prevent insect-related damage. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…