The Country's Most Dangerous Beetles- page 3 | Science | Smithsonian
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(Scott Bauer / USDA)

The Country's Most Dangerous Beetles

Invasive beetles of various colors and sizes have infiltrated U.S. forests, despite efforts by government experts

mountain_pine_beetle-520-3

Mountain pine beetle
(Maura McCarthy)

Native to: Western areas of the United States and Canada
Attacks: Lodgepole, knobcone, ponderosa, sugar, white and whitebark pines
Recent outbreaks are more severe than in the past due to: Drought, a warming climate and decades of fire suppression
Level of damage: In northwestern Colorado alone, the beetles have killed 3.5 million acres of lodgepole pine forests

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