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Author : R. A. Mask
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (319 download)
Download or read book Western Black-headed Budworm and Hemlock Sawfly in Alaska written by R. A. Mask and published by . This book was released on 1992 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (3 download)
Download or read book USDA Forest Service General Technical Report PNW. written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1974 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Institute of Northern Forestry (U.S.)
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.3/5 (91 download)
Download or read book Report written by Institute of Northern Forestry (U.S.) and published by . This book was released on 1960 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John S. Hard
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (3 download)
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.
Author : A. S. Harris
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Forest Ecosystem of Southeast Alaska written by A. S. Harris and published by . This book was released on 1974 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large-scale use of the timber resource of southeast Alaska began in 1953 after long efforts to establish a timber industry. Development and present status of the industry and present management of the timber resource are summarized, stressing the biological basis for timber management activities in southeast Alaska today. Ecological and silvicultural considerations related to timber harvest, reforestation, and stand development are discussed. Published and unpublished information are brought together. Current management practices are discussed as a basis for a better understanding of how this information can be helpful in managing the timber resource and to point out where research is needed.
Author :
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (91 download)
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:
Author :
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (3 download)
Download or read book Station Paper written by and published by . This book was released on 1959 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.3/5 (91 download)
Download or read book Report written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1952 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.0/5 ( download)
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:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 356 pages
Book Rating : 4.3/5 (129 download)
Download or read book Annual Report of the Pacific Northwest Forest and Range Experiment Station for the Calendar Year ... written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1952 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 498 pages
Book Rating : 4.:/5 (319 download)
Download or read book Information Report written by and published by . This book was released on 1985 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biennial Report, 1958-1959 written by and published by . This book was released on 1960 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 672 pages
Book Rating : 4.F/5 ( download)
Download or read book Annual Report - Pacific Northwest Forest and Range Experiment Station written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1947 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Committee on Appropriations
Publisher :
ISBN 13 :
Total Pages : 882 pages
Book Rating : 4.:/5 ( download)
Download or read book Statement of the Secretary. The budget for the Department of Agriculture written by United States. Congress. House. Committee on Appropriations and published by . This book was released on 1954 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.E/5 ( download)
Download or read book Forest Insect Conditions in the Pacific Northwest written by and published by . This book was released on 1958 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Committee on Appropriations
Publisher :
ISBN 13 :
Total Pages : 608 pages
Book Rating : 4.3/5 ( download)
Download or read book Department of Agriculture Appropriations for 1955 written by United States. Congress. House. Committee on Appropriations and published by . This book was released on 1954 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert W. Sassaman
Publisher :
ISBN 13 :
Total Pages : 768 pages
Book Rating : 4.F/5 ( download)
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:
