The Country's Most Dangerous Beetles- page 99 | Science | Smithsonian
(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

Colorado-potato-beetle-520-8

Colorado potato beetle
(Maura McCarthy)

Native to: Southwestern North America
Formerly ate: The buffalo bur, a weed in the foothills of the Rocky Mountains
Became a problem when: People started migrating west in the 1840s bringing a new food for the beetle—potatoes
Now attacks: Potato, pepper and tomato plants, eggplants
Has spread to: Much of North America, Europe and Asia

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