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Mountain Pine Beetle

2019 (approx.)

Detailed Description

Figure 3. One of the “little things that run the world:” a mountain pine beetle (Dendroctonus ponderosae), no bigger than a grain of rice.  During drought, mountain pine beetles killed 70% of large sugar pines (Pinus lambertiana) – high-value trees for both humans and wildlife – that were growing at low elevations in the southern Sierra Nevada. (Credit: Joshua Dunlap, Oregon Department of Agriculture)


Courtesy of Joshua Dunlap, Oregon Department of Agriculture