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Home → Publications → Seed and Seedling Diseases in the Western US → Evaluation of Conifer Regeneration Mortality from Root Diseases on the Cabinet Ranger District Kootenai National Forest, Montana

Evaluation of Conifer Regeneration Mortality from Root Diseases on the Cabinet Ranger District Kootenai National Forest, Montana

Three permanent plots were established within a l5-year-old conifer plantation on the Cabinet Ranger District, Kootenai National Forest, to monitor mortality associated with root diseases. Information on disease spread and host symptom development over time will be obtained. Plots were located surrounding groups of ponderosa pine recently killed by Armillaria mellea; an infected stump served as the plot center. Trees over 0.6 m (2 ft.) in height adjacent to plot centers were mapped and evaluated for root disease infection. Plots will be rechecked periodically for new root disease mortality.


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Author(s): USDA Forest Service