Protection Strategy Against Spruce Budworm
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Protection Strategy Against Spruce Budworm
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Author : David A. MacLean
language : en
Publisher: MDPI
Release Date : 2020-01-15
Protection Strategy Against Spruce Budworm written by David A. MacLean and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-15 with Science categories.
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.
Protection Strategy Against Spruce Budworm
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Author : David MacLean
language : en
Publisher:
Release Date : 2020
Protection Strategy Against Spruce Budworm written by David MacLean and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Biology (General) categories.
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.
Spruce Budworms Handbook
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Author : Daniel M. Schmitt
language : en
Publisher:
Release Date : 1984
Spruce Budworms Handbook written by Daniel M. Schmitt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Insect pests categories.
Integrated Forest Protection Guide
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Author : James P. Linnane
language : en
Publisher:
Release Date : 1986
Integrated Forest Protection Guide written by James P. Linnane and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Conifers categories.
How To Protect Individual Trees From Western Spruce Budworm By Implants And Injections
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Author : Richard C. Reardon
language : en
Publisher:
Release Date : 1984
How To Protect Individual Trees From Western Spruce Budworm By Implants And Injections written by Richard C. Reardon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Aerial spraying and dusting in forestry categories.
The Spruce Budworm Handbook
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Author : Bruce A. Montgomery
language : en
Publisher:
Release Date : 1982
The Spruce Budworm Handbook written by Bruce A. Montgomery and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Spruce budworm categories.
Silvicultural Strategies To Reduce Stand And Forest Susceptibility To The Western Spruce Budworm
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Author :
language : en
Publisher:
Release Date : 1989
Silvicultural Strategies To Reduce Stand And Forest Susceptibility To The Western Spruce Budworm written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Western spruce budworm categories.
Planning Insecticide Application And Timber Harvesting In A Spruce Budworm Epidemic
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Author :
language : en
Publisher:
Release Date : 1984
Planning Insecticide Application And Timber Harvesting In A Spruce Budworm Epidemic written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Insecticides categories.
Spruce Budworm In The Eastern United States
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Author : Daniel R. Kucera
language : en
Publisher:
Release Date : 1980
Spruce Budworm In The Eastern United States written by Daniel R. Kucera and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Spruce budworm categories.
Assessment Of Spruce Budworm Impacts In The Hawk Hills Management Area Final Report 1998
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Author : Alberta. Alberta Environmental Protection
language : en
Publisher:
Release Date : 1997
Assessment Of Spruce Budworm Impacts In The Hawk Hills Management Area Final Report 1998 written by Alberta. Alberta Environmental Protection and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Forest management categories.