Download or read book Forest Insect Conditions in the United States written by United States. Forest Service and published by . This book was released on 1967 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Forest Ecosystem of Southeast Alaska Forest insects by J S Hard written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Serials Currently Received by the National Agricultural Library 1974 written by National Agricultural Library (U.S.) and published by . This book was released on 1974 with total page 1352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Serials Currently Received by the National Agricultural Library 1975 written by National Agricultural Library (U.S.) and published by . This book was released on 1976 with total page 1392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1972 with total page 1932 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cooperative Economic Insect Report written by United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs and published by . This book was released on 1972 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper NC written by and published by . This book was released on 1981 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cooperative Economic Insect Report written by and published by . This book was released on 1971 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book History of Hardwood Decline in the Eastern United States written by Imants Millers and published by . This book was released on 1989 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book User s Manual for a Computer Program for Simulating Intensively Managed Allowable Cut written by Robert W. Sassaman and published by . This book was released on 1972 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Insect and Disease Conditions in the United States written by and published by . This book was released on 1972 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Responses of Sub boreal Forest Insects to a Catastrophic Wind disturbance Event and Subsequent Fuel reduction Practices in Northeastern Minnesota written by Kamal Jit Kaur Gandhi and published by . This book was released on 2005 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Forest Ecosystem of Southeast Alaska written by and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Perspectives on Silvicultural Management of Northern Hardwoods written by C. Wayne Martin and published by . This book was released on 1989 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: