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Mortality Of Overwintering Eggs Of Black Headed Budworm And Hemlock Sawfly In Southeast Alaska
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Book Synopsis Mortality of Overwintering Eggs of Black-headed Budworm and Hemlock Sawfly in Southeast Alaska by :
Download or read book Mortality of Overwintering Eggs of Black-headed Budworm and Hemlock Sawfly in Southeast Alaska written by and published by . This book was released on 1966 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mortality of Overwintering Eggs of the Black-headed Budworm and Hemlock Sawfly in Southeast Alaska by : Donald C. Schmiege
Download or read book Mortality of Overwintering Eggs of the Black-headed Budworm and Hemlock Sawfly in Southeast Alaska written by Donald C. Schmiege and published by . This book was released on 1966 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Western Black-headed Budworm and Hemlock Sawfly in Alaska by : R. A. Mask
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:
Book Synopsis The Hemlock Sawfly in Southeast Alaska by : John S. Hard
Download or read book The Hemlock Sawfly in Southeast Alaska written by John S. Hard and published by . This book was released on 1968 with total page 18 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 :4.3/5 (91 download)
Book Synopsis USDA Forest Service Research Paper PNW. by : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Download or read book USDA Forest Service Research Paper PNW. written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1970 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Pacific Northwest Forest and Range Experiment Station (Portland, Or.) Publisher : ISBN 13 : Total Pages :224 pages Book Rating :4.:/5 (319 download)
Book Synopsis The Forester's Almanac, 1977 by : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Download or read book The Forester's Almanac, 1977 written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1977 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Forest Service Research Note NOR. by : Northern Forest Experiment Station (Juneau, Alaska)
Download or read book U.S. Forest Service Research Note NOR. written by Northern Forest Experiment Station (Juneau, Alaska) and published by . This book was released on 1963 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis USDA Forest Service General Technical Report PNW. by :
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 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis The Forest Ecosystem of Southeast Alaska by :
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:
Book Synopsis Volume and Taper Tables for Red Alder by : Robert O. Curtis
Download or read book Volume and Taper Tables for Red Alder written by Robert O. Curtis and published by . This book was released on 1968 with total page 540 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)
Book Synopsis The Forest Ecosystem of Southeast Alaska: Forest insects, by J. S. Hard by : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
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:
Book Synopsis Mechanics of Debris Avalanching in Shallow Till Soils of Southeast Alaska by : Douglas N. Swanston
Download or read book Mechanics of Debris Avalanching in Shallow Till Soils of Southeast Alaska written by Douglas N. Swanston and published by . This book was released on 1970 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pesticides Documentation Bulletin by :
Download or read book Pesticides Documentation Bulletin written by and published by . This book was released on 1966 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Service of the United States Department of Agriculture and Related Work of the State Agricultural Experiment Stations by : United States. Forest Service
Download or read book Forest Service of the United States Department of Agriculture and Related Work of the State Agricultural Experiment Stations written by United States. Forest Service and published by . This book was released on 1967 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sequential Sampling of Hemlock Sawfly Eggs in Southeast Alaska by : John S. Hard
Download or read book Sequential Sampling of Hemlock Sawfly Eggs in Southeast Alaska written by John S. Hard and published by . This book was released on 1971 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Evaluation of the Black-headed Budworm and Hemlock Sawfly in the Hemlock-spruce Stands of Southeast Alaska by : George L. Downing
Download or read book Biological Evaluation of the Black-headed Budworm and Hemlock Sawfly in the Hemlock-spruce Stands of Southeast Alaska written by George L. Downing and published by . This book was released on 1959 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: