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Author : J. Peter Hall,Forest Insect and Disease Survey (Canada),Canadian Forest Service,Canada. Natural Resources Canada
Publisher : Unknown
Page : 72 pages
File Size : 45,8 Mb
Release : 1997
Category : Forest insects
ISBN : 0662264991
Author : James Peter Brandt
Publisher : Unknown
Page : 68 pages
File Size : 43,5 Mb
Release : 1995
Category : Forest insects
ISBN : CORNELL:31924073151858
This document summarizes forest pest conditions in Alberta, Saskatchewan, Manitoba, and the Northwest Territories and provides predictions of damage levels by major pests for the year. Major pests and abiotic factors affecting forests are discussed, as well as special surveys of young stands, aspen forests, and a forest nursery. Additional noteworthy insects, diseases, and tree damage agents are reported.
Author : Anonim
Publisher : Unknown
Page : 134 pages
File Size : 44,6 Mb
Release : 1990
Category : Forest insects
ISBN : UOM:39015035227183
Author : Colin S. Wood,G. A. VanSickle
Publisher : Unknown
Page : 39 pages
File Size : 54,8 Mb
Release : 1994
Category : Forest insects
ISBN : 0662228308
Author : G. A. Van Sickle
Publisher : Unknown
Page : 25 pages
File Size : 42,8 Mb
Release : 1996
Category : Forest insects
ISBN : 0662240863
Author : J. Edward Hurley
Publisher : Unknown
Page : 30 pages
File Size : 42,7 Mb
Release : 1996
Category : Forest insects
ISBN : MINN:31951P00848353Y
This report reviews the status of forest insects and diseases in the Maritimes region and forecasts conditions for the coming year. Pests and problems of conifers, hardwoods, and high-value areas, such as nurseries, seed orchards, plantations, and Christmas tree areas, are described. Information on pests under quarantine regulations and control operations against spruce budworm and hemlock looper are summarized.
Author : Forest Insect and Disease Survey (Canada),Canada. Forestry Canada
Publisher : Unknown
Page : 117 pages
File Size : 44,7 Mb
Release : 1992
Category : Forest insects
ISBN : 0662197186
Author : Canadian Forestry Service,E. S. (Edward Sminichi) Kondo,Forest Insect and Disease Survey (Canada),Taylor, R. G
Publisher : Forest Insect and Disease Survey, Canadian Forestry Service
Page : 76 pages
File Size : 51,5 Mb
Release : 1985
Category : Forest insects Canada
ISBN : 0662139429
In this report, pests considered to be currently most significantin terms of their present or potential economic or environmentalimpact are described in detail under "Major Forest Insects andDiseases." Regional surveys of pests are summarized under"Special Surveys." The status of many other pests is presentedin tabular form by region under the title "Other Insects andDiseases." A section on the Acid Rain National Early WarningSystem is included.
Author : Anonim
Publisher : Unknown
Page : 115 pages
File Size : 55,7 Mb
Release : 1993
Category : Forest insects
ISBN : 066220817X
Author : B. H. Moody
Publisher : Unknown
Page : 117 pages
File Size : 49,5 Mb
Release : 1990
Category : Electronic
ISBN : OCLC:1181998117
Author : Anonim
Publisher : Unknown
Page : 104 pages
File Size : 54,9 Mb
Release : 1996
Category : Forest insects
ISBN : MINN:31951D021870506
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 40,5 Mb
Release : 1987
Category : Electronic
ISBN : 0662156196
Author : B. H. Moody
Publisher : Unknown
Page : 105 pages
File Size : 41,6 Mb
Release : 1989
Category : Electronic
ISBN : 0662178157
Annual survey of forest insect and disease conditions, categorized as major forest insects and diseases and individually described. Also contains information on the Acid Rain National Early Warning System, special surveys such as cone and seed pests, pests and diseases in young stands and plantation, Stillwell's syndrome, and the pinewood nematode, and a regional summary. Also included is an overall summary of defoliation and damage estimates and an index to insects, diseases and damage.
Author : H. F. Cerezke
Publisher : Unknown
Page : 24 pages
File Size : 53,9 Mb
Release : 1992
Category : Forest insects
ISBN : 0662195027
Author : H. F. Cerezke
Publisher : Unknown
Page : 40 pages
File Size : 53,9 Mb
Release : 1991
Category : Forest insects
ISBN : CORNELL:31924073944617
Forest pest conditions in Alberta, Saskatchewan, Manitoba, and the Northwest Territories during 1990 are summarized and some predictions of infestation status are given for 1991. Twelve major pests are discussed, and additional noteworthy insects, diseases, and tree damage agents are reported in a table. An updating of surveys for acid rain symptoms in permanently established ARNEWS (Acid Rain National Early Warning System) plots and pest damage incidence in young coniferous stands are also reported.