Forest Insect and Disease Conditions in Alberta, Saskatchewan, Manitoba, and the Northwest Territories in 1985 and Predictions for 1986
Author: B. H. Moody
Publisher:
Published: 1986
Total Pages: 38
ISBN-13:
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Author: B. H. Moody
Publisher:
Published: 1986
Total Pages: 38
ISBN-13:
DOWNLOAD EBOOKAuthor: Northern Forest Research Centre (Canada)
Publisher:
Published: 1984
Total Pages: 20
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DOWNLOAD EBOOKAuthor: H. F. Cerezke
Publisher:
Published: 1991
Total Pages: 40
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DOWNLOAD EBOOKForest 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.
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Published: 197?
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DOWNLOAD EBOOKAuthor: F. J. Emond
Publisher:
Published: 1990
Total Pages: 40
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DOWNLOAD EBOOKForest pest conditions in Alberta, Saskatchewan, Manitoba, and the Northwest Territories during 1989 are summarized and some predictions of infestation status are given for 1990. Eleven major pests are discussed, and additional noteworthy insects, diseases, and tree damage agents are reported in a table. Results of surveys for acid rain symptoms and pests and damage incidence in nurseries and plantations are also reported.
Author: H. F. Cerezke
Publisher:
Published: 1989
Total Pages: 40
ISBN-13:
DOWNLOAD EBOOKForest pest conditions in Alberta, Saskatchewan, Manitoba, and the Northwest Territories during 1987 are summarized, and some predictions of infestation status are given for 1988. Eight major pests are discussed, and additional noteworthy insects, diseases, and other tree damage agents are reported in a table. Results of surveys for acid rain symptoms, pests and damage incidence in nurseries and plantations, and climatic injury to trees are also reported.
Author: F. J. Emond
Publisher:
Published: 1989
Total Pages: 42
ISBN-13:
DOWNLOAD EBOOKOf forest pest conditions for 1988, with some predictions of infestation status for 1989. Nine major pests are discussed in order of importance (spruce budworm, forest tent caterpillar, mountain pine beetle, Dutch elm disease, dwarf mistletoe, yellowheaded spruce sawfly, larch sawfly, large aspen tortrix, jack pine budworm), and additional noteworthy insects, diseases, and tree damage agents are reported. Results of surveys for acid rain symptoms and pests and damage incidence in nurseries and plantations are also reported.
Author: B. H. Moody
Publisher:
Published: 1983
Total Pages: 19
ISBN-13: 9780662125433
DOWNLOAD EBOOKAuthor: Y. Hiratsuka
Publisher:
Published: 1981
Total Pages: 32
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DOWNLOAD EBOOKAuthor: James Peter Brandt
Publisher:
Published: 1995
Total Pages: 68
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DOWNLOAD EBOOKThis 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.