Subject
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Timber
4
Aerial spraying and dusting in forestry
3
Ash (Plants)
3
Bacterial diseases
3
Black spruce
3
Blister rust
3
Brown spruce longhorn beetle
3
Cedar
3
Cerambycidae
3
Deficiency diseases in plants
3
Defoliation
3
Detection
3
Elm
3
Forest fires
3
Forest protection
3
Forests
3
Growth
3
Hares
3
Hemlock looper
3
Herbicides
3
Lyme disease
3
Nutrition
3
Plant diseases
3
Risk assessment
3
Scleroderris canker
3
Seed orchards
3
Seeds
3
Silviculture
3
Sugar maple
3
Ticks
3
Viruses
3
Acadian Forest
2
Acid rain
2
Animals
2
Asian longhorned beetle
2
Beneficial insects
2
Biological control
2
Canker (Plant disease)
2
Carnivores
2
Christmas tree growing
2
Cones (Botany)
2
Control methods
2
Crown land
2
Diagnosis
2
Dieback
2
Eastern hemlock
2
Eastern redcedar
2
Ecology
2
Economic aspects
2
Exotics
2
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