A callery pear tree’s beauty is deceptive. There’s no denying the tree’s showy white flowers are eye-catching when they begin blooming in early spring. However, underneath those pretty blossoms lurks ...

Callery pear trees were originally brought to America to save the pear industry from fire blight. Now these saviors of the fruit industry have become invaders in the landscape and are banned ...

Here in New York City, Callery pear trees line the streets boasting showy clouds of white blooms each spring. Reaching to the sky, sometimes they're so fluffy they create block-long floral tunnels.

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. A popular imported tree that became a ...