Nonnative pear trees are showing up in US forests

Nonnative pear trees are showing up in US forests

June 28, 2019
Callery or Bradford pear trees are starting to show up in many eastern forests. Once established, the invasive trees are hard to eradicate, a biologist warns.

from Latest Science News -- ScienceDaily https://ift.tt/2XfUgZA
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