Nonnative pear trees are showing up in US forests

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 https://www.sciencedaily.com/releases/2019/06/190628182312.htm

from
https://healthnews010.wordpress.com/2019/07/01/nonnative-pear-trees-are-showing-up-in-us-forests/

from https://aubreyflores.blogspot.com/2019/06/nonnative-pear-trees-are-showing-up-in.html

from
https://aubreyflores1.tumblr.com/post/185971180074

From https://tommysmith1.blogspot.com/2019/06/nonnative-pear-trees-are-showing-up-in.html

from
https://tommysmith1.wordpress.com/2019/07/01/nonnative-pear-trees-are-showing-up-in-us-forests/