File:1953. Felling an infested spruce tree to act as a trap for spruce bark beetle. Powell Ranger District, Lolo National Forest, Idaho. (34271383022).jpg
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![File:1953. Felling an infested spruce tree to act as a trap for spruce bark beetle. Powell Ranger District, Lolo National Forest, Idaho. (34271383022).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a1/1953._Felling_an_infested_spruce_tree_to_act_as_a_trap_for_spruce_bark_beetle._Powell_Ranger_District%2C_Lolo_National_Forest%2C_Idaho._%2834271383022%29.jpg/774px-1953._Felling_an_infested_spruce_tree_to_act_as_a_trap_for_spruce_bark_beetle._Powell_Ranger_District%2C_Lolo_National_Forest%2C_Idaho._%2834271383022%29.jpg?20180507153701)
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