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Jack pine (2) |
Ontario, Northwestern (2) |
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Black spruce (1) |
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Ecology (1) |
Ontario (1) |
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Thunder Bay region (1) |
Jack pine (2) |
Ontario, Northwestern (2) |
Bark beetles (1) |
Black spruce (1) |
Blue stain (1) |
Diseases and pests (1) |
Ecology (1) |
Ontario (1) |
Plant competition (1) |
Thunder Bay region (1) |