Science
Hitchhiking seeds pose substantial risk of nonnative plant invasions – EurekAlert
A team of researchers from the USDA Forest Service, Arkansas State University, and other organizations conducted a study over two seasons at the Port of Savannah, Georgia to inventory nonnative plant seeds that entered the U.S. on refrigerated shipping contai…

IMAGE: With backpack vacuums, the research team went looking for nonnative plant seeds on air-intake grilles of refrigerated shipping containers – and found thousands of them.
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Credit: Rima Lucardi, USFS
Seeds that float in the air can hitchhike in unusual places – like the air-intake grille of a refrigerated shipping container. A team of researchers from the USDA Forest Service, Arkansas State University, and other organizations recently conducted a study that involved vacuuming s…
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