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The mountain pine beetle (Dendroctonus ponderosae) is a species of bark beetle native to the forests of western North America from Mexico to central British Columbia. It has a hard black exoskeleton, and measures approximately 5 millimetres ( 1 ⁄ 4 in), about the size of a grain of rice.
The mountain pine beetle is the most aggressive, persistent, and de-structive bark beetle in the western United States and Canada. Adult beetles are dark brown to black, cylindrically-shaped, and 1/4 inch (4-7.5 mm) long (fig. 1).
The mountain pine beetle is one of several beetles attacking western pines that cause conspicuous masses of pitch, called pitch tubes, to form on the tree bole at points of entry. Pitch tubes caused by the mountain pine beetle are cream to red-colored and about 13 to 25 mm (1/2 to 1 in) in diameter.
Mountain pine beetles (Dendroctonus ponderosae; MPB) are native Colorado bark beetles that predominately infest ponderosa pine (Pinus ponderosa), lodgepole pine (P. contorta), and limber pine (P. flexilis).
The effects of bark beetles are especially evident in recent years on Colorado's western slope, including Rocky Mountain National Park (RMNP) with a severe epidemic of mountain pine beetle occurring in Grand County.
MOUNTAIN PINE BEETLE FREQUENTLY ASKED QUESTIONS What is Mountain Pine Beetle? The mountain pine beetle (MPB) is a small insect, native to western North America, including the Black Hills. It lives most of its life in the inner bark of ponderosa and limber pine trees. What does MPB look like?
Mountain pine beetle (MPB), Dendroctonus ponderosae, is native to the forests of western North America. Periodic outbreaks of the insect, previously called the Black Hills beetle or Rocky Mountain pine beetle, can result in losses of millions of trees.
The mountain pine beetle (Dendroctonus ponderosae) is a wood-boring insect native to western North America and attacks a wide range of pine trees including lodgepole, ponderosa, western white, whitebark, limber and jack. It does not attack Jeffrey pine.
Coloradans and most Western communities know firsthand the destruction of mountain pine beetles. Local landowners in Gunnison and the surrounding communities are working with federal and state land managers to address the outbreak across all lands.
Mountain pine beetle is an aggressive and destructive bark beetle that can infest most pine tree species. The beetles and their larvae tunnel through inner bark, eventually causing tree death. Identify