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"Predators Battle Bugs, Become Pests Themselves"

"Imported insects have been deployed as foot soldiers in the fight against invasive bugs and plants that cause billions of dollars in damage each year. But some of those imports are proving to be pests themselves that upset the balance of nature and threaten native species."
Source: AP, 07/22/2009

Bark Beetles Seen as Natural Event

The bark beetles devastating millions of acres of western pine forests are actually a native insect whose destruction -- like that of wildfire -- is part of a natural cycle of forest regeneration.
Source: NYTimes, 07/08/2009

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