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Author : Anonim
Publisher : Unknown
Page : 45 pages
File Size : 53,9 Mb
Release : 2017
Category : Electronic
ISBN : OCLC:1039851233
Author : Gary Man,United States Department of Agriculture,United States United States Forest Service,Tara Haan Karel
Publisher : Unknown
Page : 52 pages
File Size : 43,7 Mb
Release : 2019-08-08
Category : Electronic
ISBN : 1089031939
This report on the major insect and disease conditions of the Nation's forests represents the 65th annual report prepared by the U.S. Department of Agriculture, Forest Service. The report focuses on 19 major insects and diseases that annually cause defoliation and mortality in U.S. forests.Insects and diseases play critical roles in maintaining healthy, resilient ecosystems, but they are also among the most serious environmental and economic threats to the millions of acres of forests and urban treed areas in America. Natural and anthropogenic stressors will continue to influence the establishment, spread, and impacts of insects and diseases on forests. Tree species may be positively or negatively impacted by these changes, altering the array of products and services derived from forested lands, including timber, recreation, clean water, energy, wildlife habitat, and jobs. To understand how conditions are changing and to protect species, forests are surveyed for insect and disease extent and intensity so that Federal and State agencies and other stakeholders can prioritize future actions and ensure forests remain resilient and sustainable into the future. The overall mortality caused by insects and diseases varies by year and by pest.
Author : United States. Forest Service,Melissa L. Jenkins
Publisher : Government Printing Office
Page : 56 pages
File Size : 42,9 Mb
Release : 2015-09-10
Category : Gardening
ISBN : 0160929865
The report focuses on the 20 major insects and diseases that annually cause defoliation and mortality in forests of the United States. This 2013 edition contains updated charts, tables, and maps, plus, it provides a national summary of the major changes and status of these 20 forest pests. "
Author : Anonim
Publisher : Unknown
Page : 56 pages
File Size : 49,9 Mb
Release : 2024-06-10
Category : Forest insects
ISBN : STANFORD:36105212623511
Author : Anonim
Publisher : Unknown
Page : 104 pages
File Size : 45,5 Mb
Release : 1996
Category : Forest insects
ISBN : MINN:31951D021870506
Author : United States. Forest Service
Publisher : Unknown
Page : 90 pages
File Size : 45,6 Mb
Release : 1978
Category : Forest insects
ISBN : MINN:30000009428057
Author : Anonim
Publisher : Unknown
Page : 44 pages
File Size : 47,7 Mb
Release : 2015
Category : Electronic
ISBN : OCLC:1039870369
Author : Anonim
Publisher : Unknown
Page : 78 pages
File Size : 45,5 Mb
Release : 2009
Category : Forest health
ISBN : MINN:31951D029653019
Author : Anonim
Publisher : Unknown
Page : 0 pages
File Size : 45,9 Mb
Release : 2015
Category : Electronic
ISBN : OCLC:1039870369
Author : United States. Forest Service
Publisher : Unknown
Page : 536 pages
File Size : 41,9 Mb
Release : 1962
Category : Forest insects
ISBN : UOM:39015046520121
Author : John Pronos,Bill Hoffard
Publisher : Unknown
Page : 100 pages
File Size : 52,7 Mb
Release : 1981
Category : Forest insects
ISBN : MINN:31951D014710965
Author : Anonim
Publisher : Unknown
Page : 188 pages
File Size : 55,9 Mb
Release : 1980
Category : Forests and forestry
ISBN : MINN:31951D02996266Y
Author : Anonim
Publisher : Unknown
Page : 158 pages
File Size : 47,9 Mb
Release : 1977
Category : Forest insects
ISBN : UCBK:C045652281
Author : United States. Forest Service. Northern Region
Publisher : Unknown
Page : 100 pages
File Size : 47,9 Mb
Release : 2024-06-10
Category : Forest insects
ISBN : STANFORD:36105130397933
Author : Anonim
Publisher : Unknown
Page : 270 pages
File Size : 51,9 Mb
Release : 1994
Category : Forest insects
ISBN : CORNELL:31924101454183