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Author : Anonim
Publisher : Unknown
Page : 32 pages
File Size : 46,7 Mb
Release : 1986
Category : Conifers
ISBN : MINN:319510029457481
Author : E. E. Nelson
Publisher : Unknown
Page : 8 pages
File Size : 45,7 Mb
Release : 1981
Category : Conifers
ISBN : MINN:31951D02567884D
Author : Ellen Michaels Goheen,Elizabeth A. Willhite
Publisher : Forest Service
Page : 342 pages
File Size : 45,5 Mb
Release : 2006
Category : Gardening
ISBN : UVA:X005111614
Author : Robert V. Bega
Publisher : Unknown
Page : 216 pages
File Size : 53,9 Mb
Release : 1978
Category : Conifers
ISBN : UVA:X001754954
Author : Ellen Goheen,Elizabeth Willhite
Publisher : Unknown
Page : 128 pages
File Size : 44,7 Mb
Release : 2021-08-02
Category : Electronic
ISBN : 0578837498
Field Guide to the Common Diseases and Insect Pests of Oregon and Washington Conifers is a useful aid for forestry practitioners and conifer forest landowners in the Pacific Northwest. This handy guide is designed for use in field conditions and describes more than 100 biotic and abiotic agents, emphasizing key identification traits and illustrative photos. It includes general overviews of important agent groups, including bark beetles, root diseases, stem decays, canker diseases and rusts, dwarf mistletoes, foliar pathogens, and defoliating insects. Biotic agents are organized according to their primary association with one of three major tree parts: roots, stem and branches, or foliage. Abiotic and noninfectious diseases are listed in a separate section. Individual agent descriptions are provided in a two-page format with descriptive text facing a page containing multiple color images and a "key characters" box. Each description provides the insect or pathogen common and scientific names, hosts, and information on distribution and damage, identification, agents producing similar symptoms and signs, and severity. Also included are a color-coded quick tab feature at the front of the book, diagnosis tips, identification keys, drawings of bark beetle gallery patterns, agent comparison tables, references, glossary, and an index with embedded color-highlighted host-pest indexes for easy reference.
Author : James S. Hadfield,David Winslow Johnson
Publisher : Unknown
Page : 20 pages
File Size : 54,6 Mb
Release : 1977
Category : Phellinus weirii
ISBN : MINN:319510028407283
Author : Anonim
Publisher : Unknown
Page : 28 pages
File Size : 42,9 Mb
Release : 1984
Category : Conifers
ISBN : CUB:P206071701013
Author : Thomas White Childs
Publisher : Unknown
Page : 28 pages
File Size : 50,5 Mb
Release : 1970
Category : Douglas fir
ISBN : MINN:31951D02995407B
Author : Anonim
Publisher : Unknown
Page : 40 pages
File Size : 50,9 Mb
Release : 2005
Category : Roots (Botany)
ISBN : MINN:31951D03001218Z
After nearly 100 years of fire exclusion, introduced pests, and selective harvesting, a change in forest composition has occurred in many Inland West forests of North America. This change in forest structure has frequently been accompanied by increases in root diseases and/or an unprecedented buildup of fuels. Consequently, many forest managers are implementing plans for fuels treatments to lower the risk of severe wildfires. Impacts on root disease should be considered before selecting appropriate fuels treatments. Complex interactions exist among conifer root diseases, fuels treatments, forest structure, species composition, stand history, and other environmental factors. As forest managers prescribe fuels treatments, their success in lowering the risk of severe wildfire will depend in part on the impacts of these treatments on root disease. Root diseases are one of many factors to be considered when developing plans for fuels treatments. Choices must be made on a site-by-site basis, with knowledge of the diseases that are present. This paper provides examples of how fuels treatments may increase or reduce specific diseases and demonstrates their importance as considerations in the fuels management planning process. Several root diseases prevalent within Inland West of North America are addressed: Armillaria root disease, annosus root disease, laminated root rot, black stain root disease, Schweinitzii root and butt rot, Tomentosus root disease, Rhizina root rot, and stringy butt rot. For each disease, general information is provided on disease identification, management options, and potential effects of fuels treatments. However, many long-term studies are needed to assess effects of specific interactions among fuels treatments, root diseases, and host trees.
Author : Anonim
Publisher : Unknown
Page : 40 pages
File Size : 55,5 Mb
Release : 1995
Category : Fungal diseases of plants
ISBN : MINN:31951D02889118B
Author : Craig L. Schmitt
Publisher : Unknown
Page : 12 pages
File Size : 40,5 Mb
Release : 2000
Category : Conifers
ISBN : MINN:31951D02567885B
Author : Gregory M. Filip
Publisher : Unknown
Page : 40 pages
File Size : 40,9 Mb
Release : 1990
Category : Fir
ISBN : MINN:31951D02996195V
Author : Anonim
Publisher : Unknown
Page : 750 pages
File Size : 46,5 Mb
Release : 2024-06-26
Category : Forest insects
ISBN : STANFORD:36105113733906
Author : Anonim
Publisher : Unknown
Page : 188 pages
File Size : 42,6 Mb
Release : 1990
Category : Heterobasidion annosum
ISBN : MINN:31951D02977235G
Author : United States. Forest Service
Publisher : Unknown
Page : 102 pages
File Size : 48,8 Mb
Release : 1984
Category : Forest insects
ISBN : MINN:30000009428164
