A Whitebark Pine (Pinus albicaulis) dying, probably from either White Pine Blister Rust (Cronartium ribicola) or a Mountain Pine Beetle (Dendroctonus ponderosae) infestation, along the Pacific Crest Trail near Hart's Pass, Okanogan National Forest, North Cascade Mountains, Washington State, USA, October, 2008_WA_6468

Loading…
A Whitebark Pine (Pinus albicaulis) dying, probably from either White Pine Blister Rust (Cronartium ribicola) or a Mountain P...