Download or read book The Battle Against Bark Beetles in Crater Lake National Park 1925 34 written by Boyd E. Wickman and published by . This book was released on 1990 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Battle Against Bark Beetles in Crater Lake National Park 1925 34 written by Boyd E. Wickman and published by . This book was released on 1990 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Battle Against Bark Beetle in Crater Lake National Park written by Boyd E. Wickman and published by . This book was released on 1990 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Battle Against Bark Beetles in Crater Lake National Park 1925 34 Classic Reprint written by Boyd E. Wickman and published by Forgotten Books. This book was released on 2018-03-18 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Battle Against Bark Beetles in Crater Lake National Park, 1925-34 This history records the first large-scale bark beetle control project in a National Park in the Pacific Northwest. It describes the relations between Park Service, Forest Serv ice, and usda Bureau of Entomology personnel; how the project was organized; the ecological implications of the outbreak; and the long-term results of direct control measures. Keywords: Bark beetles, Crater Lake National Park, control, Bureau of Entomology, Forest Service, insect outbreaks. 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.

Download or read book General Technical Report PNW GTR written by and published by . This book was released on 1990 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Management of Old growth Forests of the Pacific Northwest written by United States. Congress. House. Committee on Agriculture. Subcommittee on Forests, Family Farms, and Energy and published by . This book was released on 1990 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Empire of the Beetle written by Andrew Nikiforuk and published by Greystone Books Ltd. This book was released on 2011 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning in the late 1980s, a series of improbable bark beetle outbreaks unsettled iconic forests and communities across western North America. An insect the size of a rice kernel eventually killed more than 30 billion pine and spruce trees from Alaska to New Mexico. Often appearing in masses larger than schools of killer whales, the beetles engineered one of the world's greatest forest die-offs since the deforestation of Europe by peasants between the eleventh and thirteenth centuries. The beetle didn't act alone. Misguided science, out-of-control logging, bad public policy, and a hundred years of fire suppression created a volatile geography that released the world's oldest forest manager from all natural constraints. Like most human empires, the beetles exploded wildly and then crashed, leaving in their wake grieving landowners, humbled scientists, hungry animals, and altered watersheds. Although climate change triggered this complex event, human arrogance assuredly set the table. With little warning, an ancient insect pointedly exposed the frailty of seemingly stable manmade landscapes. And despite the billions of public dollars spent on control efforts, the beetles burn away like a fire that can't be put out. Drawing on first-hand accounts from entomologists, botanists, foresters, and rural residents, award-winning journalist Andrew Nikiforuk investigates this unprecedented beetle plague, its startling implications, and the lessons it holds.

Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1991 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Park Science written by and published by . This book was released on 1990 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Forester written by United States. Forest Service and published by . This book was released on 1928 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Chief Forest Service written by United States. Forest Service and published by . This book was released on with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Chief of the Forestry Division written by United States. Forest Service and published by . This book was released on with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Chief of the Forest Service written by United States. Forest Service and published by . This book was released on 1918 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Entomology and Pathology written by Jeremy D. Allison and published by Springer Nature. This book was released on 2023-06-30 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book will provide an introduction to forest entomology, the principles and techniques of forest insect pest management, the different forest insect guilds/feeding groups, and relevant forest insect pest management case studies. In addition to covering 30% of the earth, forest ecosystems provide numerous timber and non-timber products that affect our daily lives and recreational opportunities, habitat for diverse animal communities, watershed protection, play critical roles in the water cycle, and mitigate soil erosion and global warming. In addition to being the most abundant organisms in forest ecosystems, insects perform numerous functions in forests, many of which are beneficial and critical to forest health. Conversely, some insects damage and/or kill trees and reduce the capacity of forests to provide desired ecosystem services. The target audience of this book is upper-level undergraduate and graduate students and professionals interested in forest health and entomology.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991 with total page 1530 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Catalog of Scolytidae and Platypodidae Coleoptera written by Donald E. Bright and published by NRC Research Press. This book was released on 1997 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication supplements Wood & Bright's 1992 catalogue of the world's Scolytidae and Platypodidae (bark beetles), updating the taxonomy of these two families to nearly the end of 1995 and including all known literature references to the end of 1994 (plus references to articles missed in the earlier bibliography). References which provide new information on taxonomy, host plants, or biology of a species are also included. The format of the supplement closely follows that of the 1992 catalogue. Each genus & species is listed with its page number from that catalogue; additional information on figures, distribution, hosts, and references to other subject areas are given. The publication also includes lists of host plants, arranged by scientific name, and the beetles attacking them.