Callery pear trees line a street in Kansas City, Missouri. This species, popular for its flowers, is a healthy part of nature in its native Asia. But it becomes highly invasive in North America, ...
They’re beautiful in bloom, but Callery pear trees crowd out native plants and turn productive open land into woody thickets, writes University of Dayton biology professor Ryan W. McEwan. When people ...
(THE CONVERSATION) – 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 ...
At least three states have banned these trees outright, and others discourage the public from adding them to their yards. Ohio became the first state in the country to ban the popular but invasive ...