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Excerpt from Insects and Diseases of Alaskan Forests Forest Defoliators Identification Key black-headed Budworm Spruce Budworm Large Aspen Tortrix Leaf Rollers. 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.
Book Synopsis Insects and Diseases of Alaskan Forests (Classic Reprint) by : Edward H. Holsten
Download or read book Insects and Diseases of Alaskan Forests (Classic Reprint) written by Edward H. Holsten and published by Forgotten Books. This book was released on 2018-03-17 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Insects and Diseases of Alaskan Forests Forest Defoliators Identification Key black-headed Budworm Spruce Budworm Large Aspen Tortrix Leaf Rollers. 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.
Book Synopsis Insects and Diseases of Alaskan Forests by :
Download or read book Insects and Diseases of Alaskan Forests written by and published by . This book was released on 2001 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Insects and Diseases of Alaskan Forests by : Edward H. Holsten
Download or read book Insects and Diseases of Alaskan Forests written by Edward H. Holsten and published by . This book was released on 2009 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis INSECTS AND DISEASES OF ALASKAN FORESTS by : EDWARD H. HOLSTEN
Download or read book INSECTS AND DISEASES OF ALASKAN FORESTS written by EDWARD H. HOLSTEN and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Insects and Diseases of Alaskan Forests by : Edward H. Holsten
Download or read book Insects and Diseases of Alaskan Forests written by Edward H. Holsten and published by . This book was released on 1985 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Insects and Diseases of Alaskan Forests by : Edward H. Holsten
Download or read book Insects and Diseases of Alaskan Forests written by Edward H. Holsten and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Excerpt from Forest Insect and Disease Conditions in Alaska Ground and aerial surveys detected significant blotch miner damage on hectares of quaking aspen near Fairbanks. Before last summer, damage caused by this miner was practically nonexistent. It was not until 1977 that the causal agent was identified as L. Ontario. Likewise, a related but unidentified species of Lithocol/etis caused considerable mining on alder in and around Fairbanks. Efforts will be undertaken next year to monitor the effects of these hardwood blotch miners. 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.
Book Synopsis Forest Insect and Disease Conditions in Alaska (Classic Reprint) by : United States Department Of Agriculture
Download or read book Forest Insect and Disease Conditions in Alaska (Classic Reprint) written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2018-09-14 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Forest Insect and Disease Conditions in Alaska Ground and aerial surveys detected significant blotch miner damage on hectares of quaking aspen near Fairbanks. Before last summer, damage caused by this miner was practically nonexistent. It was not until 1977 that the causal agent was identified as L. Ontario. Likewise, a related but unidentified species of Lithocol/etis caused considerable mining on alder in and around Fairbanks. Efforts will be undertaken next year to monitor the effects of these hardwood blotch miners. 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.
Book Synopsis Forest Insect and Disease Conditions in Alaska by :
Download or read book Forest Insect and Disease Conditions in Alaska written by and published by . This book was released on 1979 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Insect and Disease Conditions in Alaska in ... by :
Download or read book Forest Insect and Disease Conditions in Alaska in ... written by and published by . This book was released on 1998 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Southeast Alaska's remaining virgin forests have few insect pests. The black-headed budworm and the hemlock sawfly, both western hemlock defoliators, are the most important species. They kill some trees, kill tops in others, and cause growth loss, but stands survive their attacks. Extensive conversion of virgin stands to second growth may result in an increase in pest problems as it has in similar areas such as coastal British Columbia. ??Widespread use of insecticides to control major outbreaks is not practical because of risk of contaminating salmon-spawning and trout-rearing streams; but insecticide use may be justified in local, high value areas. Weather, diseases, and parasites control outbreaks naturally. Damage-prone stands should be identified and harvested before insect attack or salvage-logged following outbreaks. Ideally, second-growth stands should be managed for resistance to insect pests.
Book Synopsis The Forest Ecosystem of Southeast Alaska by : John S. Hard
Download or read book The Forest Ecosystem of Southeast Alaska written by John S. Hard and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Southeast Alaska's remaining virgin forests have few insect pests. The black-headed budworm and the hemlock sawfly, both western hemlock defoliators, are the most important species. They kill some trees, kill tops in others, and cause growth loss, but stands survive their attacks. Extensive conversion of virgin stands to second growth may result in an increase in pest problems as it has in similar areas such as coastal British Columbia. ??Widespread use of insecticides to control major outbreaks is not practical because of risk of contaminating salmon-spawning and trout-rearing streams; but insecticide use may be justified in local, high value areas. Weather, diseases, and parasites control outbreaks naturally. Damage-prone stands should be identified and harvested before insect attack or salvage-logged following outbreaks. Ideally, second-growth stands should be managed for resistance to insect pests.