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Once the Callery pear tree was landscapers' favorite – now states are banning this invasive species and urging homeowners to cut it down

  • Written by Ryan W. McEwan, Professor of Biology, University of Dayton
Once the Callery pear tree was landscapers' favorite – now states are banning this invasive species and urging homeowners to cut it downBradford pear trees in bloom along a driveway in Sussex County, Del.Lee Cannon/Flickr, CC BY-SA

When people think of spring, they often picture flowers and trees blooming. And if you live in the U.S. Northeast, Midwest or South, you have probably seen a medium-sized tree with long branches, covered with small white blooms – the Callery pear (P...

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