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International trade brings in fruits and vegetables, computers and cars. But a downside to imports includes fighting against an onslaught of invasive species that hitch rides on wooden pallets, shipping containers, boxes and produce.

The spotted lanternfly, a brightly colored red and black moth-like insect and one of the latest invaders, landed in Pennsylvania’s Berks County around 2012 and has munched its way across 13 counties, threatening grapes, orchards and hardwood trees. State and federal officials want to stop it, and they’ve spent about $20 million this year on research and eradication efforts.

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