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David W. Williams


In Pursuit of Answers to Thwart Threatening Invaders

June 13, 2012 Dwight Cunningham, APHIS Public Affairs, Riverdale, MD

It’s at that first alarm, when an invasive species is discovered within U.S. borders, that scientists at USDA APHIS’ Center for Plant Health Science and Technology (CPHST) power up to solve a biological puzzle and protect American resources.

Animals Plants Research and Science
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