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Natural Resources Canada
Our Natural Resources
Forests and forestry
The Canadian Forest Service
Forest resources
Trees, insects and diseases of Canada's forests
Diseases
Pollutio Vaporifera
Fluoride injury
Ozone injury
Sulphur oxide injury
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Trees
Index
Broadleaf
Conifers
Insects
Index
General classification
Diet and feeding behaviour
Diseases
Index
General classification
Types of damage
Soil fungi
Using images
