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Kettela, E. G.
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1
A cartographic history of spruce budworm defoliation 1967 to 1981 in eastern North America
by
Kettela
,
E
.
G
.
:
Environment Canada,
1983.
Series:
Canadian Forestry Service;
Information Report DPC-X-14
Call Number:
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2
Assessment of aerial spraying operations against the spruce budworm in New Brunswick [1977] : and a forecast of conditions in the maritime provinces for 1978 / by E. G. Kettela ......
by
Kettela
,
E
.
G
.
:
Canada Department of Fisheries and the Environment,
1977
Series:
Canadian Forestry Service, Information Report M-X-81.
Call Number:
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3
SYNOPSIS OF SPRUCE BUDWORM INFESTATIONS IN NATIONAL PARKS IN THE MARITIMES REGION, 1974-75
by
Kettela
,
E
.
G
.
:
Environment Canada,
1975.
Call Number:
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4
Results of the 1980 woodlot protection project with Bacillus thuringiensis kurstaki in New Brunswick / by E.G. Kettela and Victor Steel
by
Kettela
,
E
.
G
. 1940-
Fredericton, N.B. :
Maritimes Forest Research Centre, Canadian Forestry Service,
1984.
Series:
Information report (Maritimes Forest Research Centre) ;
M-X-150
Call Number:
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5
Assessment of the 1971 spruce budworm aerial spraying program in New Brunswick and forecast for 1972 / by E.G. Kettela and I.W. Varty
by
Kettela
,
E
.
G
.
Fredericton, N.B. :
Maritimes Forest Research Centre,
1972.
Series:
Information report (Maritimes Forest Research Service) ;
M-X-29
Call Number:
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6
Status of spruce budworm infestations in Nova Scotia in 1971 and a forecast for 1972 / by E.G. Kettela
by
Kettela
,
E
.
G
[Fredericton, N.B.] :
Maritimes Forest Research Centre, Canadian Forestry Service, Dept. of the Environment,
1972.
Series:
Information report (Maritimes Forest Research Centre) ;
M-X-31
Call Number:
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7
Aerial spraying against the spruce budworm in 1973 and a forecast of conditions in the Maritimes Region in 1974
by
Kettela
,
E
.
G
.
[s.l.] :
[s.n.],
[1973].
Call Number:
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8
Aerial spraying against the spruce budworm in 1975 and a forecast of conditions in the Maritimes Region in 1976
by
Kettela
,
E
.
G
.
[s.l.] :
[s.n.],
[1975].
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9
A Review of entomological survey and assessment techniques used in regional spruce budworm, Choristoneura fumiferana (Clem), surveys and in the assessment of operational spray prog...
[Québec] :
Québec Department of Energy and Resources,
1982.
Other Authors:
';
“
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Kettela
,
E
.
G
....
”
Call Number:
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10
The spruce budworm
by
Baskerville, G. L.
[Mattawa, ON] :
The Forestry Chronicle,
[1975].
Other Authors:
';
“
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Kettela
,
E
.
G
....
”
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Related Subjects
Spruce budworm
Diseases and pests
Spruce
Control
Aerial spraying and dusting in forestry
Bacillus thuringiensis
Defoliation
Entomology
Forest pests
Forest protection
Herbicides
Research
Trees
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