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Author : George L. Downing
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (13 download)
Download or read book The Recent History of Destructive Forest Insect Activity in Alaska written by George L. Downing and published by . This book was released on 1957 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John S. Hard
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)
Download or read book Identification of Destructive Alaska Forest Insects written by John S. Hard and published by . This book was released on 1967 with total page 24 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 : 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 : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
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 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 :
Publisher :
ISBN 13 :
Total Pages : 742 pages
Book Rating : 4.F/5 ( 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 742 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 : 4.0/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska: Forest ecology and timber management, by A. S. Harris and W. A. Farr 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 : 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 : Richard Allen Werner
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Spruce Beetle in White Spruce Forests of Alaska written by Richard Allen Werner and published by . This book was released on 1977 with total page 20 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 :
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 :
Publisher :
ISBN 13 :
Total Pages : 690 pages
Book Rating : 4.:/5 (3 download)
Download or read book Research Paper PNW. written by and published by . This book was released on 1978 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.0/5 (92 download)
Download or read book U.S.D.A. Forest Service Research Note PNW. written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1976 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Forest Service
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (385 download)
Download or read book Identification of Destructive Alaska Forest Insects written by United States. Forest Service and published by . This book was released on 1967 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (2 download)
Download or read book USDA Forest Service General Technical Report PNW. written by and published by . This book was released on 1977 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (18 download)
Download or read book Identification of Destructive Alaska Forest Insects written by and published by . This book was released on 1967 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward H. Holsten
Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.3/5 (117 download)
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 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
