Download or read book Spruce fir Management and Spruce Budworm written by Society of American Foresters. Region VI. Technical Conference and published by . This book was released on 1985 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Protection Strategy against Spruce Budworm written by David A. MacLean and published by MDPI. This book was released on 2020-01-15 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spruce budworm (Choristoneura fumiferana (Clem.)) outbreaks are a dominant natural disturbance in the forests of Canada and northeastern USA. Widespread, severe defoliation by this native insect results in large-scale mortality and growth reductions of spruce (Picea sp.) and balsam fir (Abies balsamea (L.) Mill.) forests, and largely determines future age–class structure and productivity. The last major spruce budworm outbreak defoliated over 58 million hectares in the 1970s–1980s, and caused 32–43 million m3/year of timber volume losses from 1978 to 1987, in Canada. Management to deal with spruce budworm outbreaks has emphasized forest protection, spraying registered insecticides to prevent defoliation and keep trees alive. Other tactics can include salvage harvesting, altering harvest schedules to remove the most susceptible stands, or reducing future susceptibility by planting or thinning. Chemical insecticides are no longer used, and protection strategies use biological insecticides Bacillus thuringiensis (B.t.) or tebufenozide, a specific insect growth regulator. Over the last five years, a $30 million research project has tested another possible management tactic, termed an ‘early intervention strategy’, aimed at area-wide management of spruce budworm populations. This includes intensive monitoring to detect ‘hot spots’ of rising budworm populations before defoliation occurs, targeted insecticide treatment to prevent spread, and detailed research into target and non-target insect effects. The objective of this Special Issue is to compile the most recent research on protection strategies against spruce budworm. A series of papers will describe results and prospects for the use of an early intervention strategy in spruce budworm and other insect management.

Download or read book Spruce Budworms Handbook written by Daniel M. Schmitt and published by . This book was released on 1984 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spruce Budworm Cooperative Management 1981 1985 written by and published by . This book was released on 1981 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1990 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Forest Management Handbook written by Guy R. Larocque and published by CRC Press. This book was released on 2024-08-21 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Ecological Forest Management Handbook continues to provide forestry professionals and students with basic principles of ecological forest management and their applications at regional and site-specific levels. Thoroughly updated and revised, the handbook addresses numerous topics and explains that ecological forest management is a complex process that requires broad ecological knowledge. It discusses how to develop adaptive management scenarios to harvest resources in a sustainable way and provide ecosystem services and social functions. It includes new studies on ecological indicators, the carbon cycle, and ecosystem simulation models for various forest types: boreal, temperate, and tropical forests. NEW IN THE SECOND EDITION Provides a comprehensive collection of sustainable forest management principles and their applications Covers new ecological indicators that can be applied to address forest environmental issues Includes all types of models: empirical, gap, and process-based models Explains several basic ecological and management concepts in a clear, easy-to- understand manner This handbook is intended for researchers, academics, professionals, and undergraduate and graduate students studying and/or involved in the management of forest ecosystems. Chapters 16 and 18 of this book are available for free in PDF format as Open Access from the individual product page at www.taylorfrancis.com. They have been made available under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license.

Download or read book Rio Grande National Forest N F Land and Resource s Management Plan LRMP written by and published by . This book was released on 1985 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Management in Wyoming Timber Harvest and the Environment on the Teton Bridger Shoshone and Bighorn National Forests written by United States. Forest Service and published by . This book was released on 1971 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings Agriculture Dept written by United States. Congress. House. Committee on Appropriations and published by . This book was released on 1946 with total page 2810 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of Agriculture Appropriation Bill written by United States. Congress. House. Committee on Appropriations and published by . This book was released on 1946 with total page 2082 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of Agriculture Appropriation Bill for 1949 written by United States. Congress. House. Committee on Appropriations and published by . This book was released on 1948 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings written by United States. Congress. House and published by . This book was released on 1948 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report NE written by and published by . This book was released on 1980 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Protecting and Enhancing America s Forests and Rangelands written by and published by . This book was released on 1987 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Programs for computer simulation of a crosscut first furniture rough mill written by R. Bruce Anderson and published by . This book was released on 1985 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report NC written by and published by . This book was released on 1981 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Integrated Tools for Natural Resources Inventories in the 21st Century written by Mark H. Hansen and published by . This book was released on 1998 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: