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Dendroctonus brevicomis, the western pine beetle, is a species of crenulate bark beetle in the family Curculionidae. It is found in North America [ 1 ] [ 2 ] [ 3 ] and parts of Mexico. [ 4 ] It is known as a destructive pest of ponderosa and Coulter pine trees. [ 5 ]
In its native range, the western conifer seed bug feeds on the sap of developing conifer cones throughout its life, and its sap-sucking causes the developing seeds to wither and misdevelop. It is therefore considered a minor tree pest in North America, but becoming sometimes more harmful e.g. in conifer plantations . [ 3 ]
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.
Dendroctonus is a genus of bark beetles.It includes several species notorious for destroying trees in the forests of North America. The genus has a symbiotic relationship with many different yeasts, particularly those in the genera Candida and Pichia that aid in digestion and pheromone production.
Massive outbreaks of mountain pine beetles in western North America after about 2005 have killed millions of acres of forest from New Mexico to British Columbia. [20] Bark beetles enter trees by boring holes in the bark of the tree, sometimes using the lenticels, or the pores plants use for gas exchange, to pass through the bark of the tree. [3]
Chalcophora angulicollis, known generally as the western sculptured pine borer or sculptured pine borer, is a species of metallic wood-boring beetle in the family Buprestidae. They are found in dry parts of the world such as the western parts of North America. They have a dark brown textured shell with a shimmery gradient. [1] [2] [3]
Infested wood can be chipped, stripped of bark, or solarized in plastic to kill the beetles. [4] If the sounds of related but different species of beetles, such as western pine beetles and southern pine beetles (which both feed on pinyon but never live together), are played into a tree the beetles present will tear each other apart. [13]
Common names include pine sawyer, western pine sawyer, spined woodborer, and ponderosa pine borer. [2] A taxonomic synonym is Ergates spiculatus. [2] This beetle species develops on fallen ponderosa pines and Douglas firs. [3] T. spiculatus is the largest species of wood boring beetle in Colorado. [3]