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:

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:

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:

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:

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:

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 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:

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:

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:

Download or read book Instructions for the Collection and Identification of Forest Insect Pests of Alaska and Their Parasites and Predators written by Richard A. Werner and published by . This book was released on 1963 with total page 46 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 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:

Download or read book Insects and Diseases of Alaskan Forests written by Edward Holsten and published by Diane Publishing Company. This book was released on 2001 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is divided into insect & disease sections, each with its own color photograph, & host index. Chapters: the role of disturbance in ecosystem management; invasive pests; guide to the forest pests; forest defoliators; sap-sucking insects & mites; bark beetles; wood borers; cone & seed insects; insect pests of wood products; bud & shoot insects; parts of an insect; index to insects by host plants; diseases; foliar diseases; shoot diseases; stem & branch diseases; root diseases; wood decays & stains; non-infections disorders; index to diseases by host plants; glossary; literature cited; & submitting insects & diseases for identification. Comprehensive!

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:

Download or read book Annotated Bibliography of Chamaecyparis Nootkatensis written by Paul E. Hennon and published by . This book was released on 1997 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vegetation of Oregon Washington written by Charles N. Mann and published by . This book was released on 1968 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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: