File:1969. Insect and disease training. Armillaria root disease. Deschutes National Forest, Oregon. (36069307575).jpg
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![File:1969. Insect and disease training. Armillaria root disease. Deschutes National Forest, Oregon. (36069307575).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/1969._Insect_and_disease_training._Armillaria_root_disease._Deschutes_National_Forest%2C_Oregon._%2836069307575%29.jpg/800px-1969._Insect_and_disease_training._Armillaria_root_disease._Deschutes_National_Forest%2C_Oregon._%2836069307575%29.jpg?20180507001606)
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