这些漂亮的梨树令人避之不及

The curse of the Bradford pear:These pretty trees can be a menace to people and the environment

 

In recent decades, these trees have become commonplace in suburban yards across the country, but many gardening experts caution against the beautiful trees, saying they are a menace to people and the environment.

 

The trees were introduced by the United States Department of Agriculture as ornamental landscape trees in the mid-1960s. They became popular with landscapers because they were inexpensive, transported well and grew quickly.

Here are a few things to know about Bradford pear trees:

 

They can grow up to 30 feet tall, which is dangerous because the trees have a weak branch structure. Bradford pear trees often break apart within 20 years. Anything, and anyone, under a Bradford pear is at increased risk as the tree ages and its steep V crotch structure is strained.

 

The Bradford pear, otherwise known as the Callery pear, veils an ecological nightmare with beauty and it's better for everyone if it's dead.

 

The trees choke out other plants, especially in fallow fields which are empty pieces of land that are the forests of the future. The trees can create a "dead zone," with Bradford or Callery pears growing in thick masses with a dense canopy growing early in the year, keeping the light out for the rest of the plants.

 

Even with the pending ban, it could be centuries until the Bradford pears are eradicated.  （excerpt from USA Today）

所有跟帖： 

• 梨花？ -妖妖灵- ♀ (0 bytes) () 12/09/2021 postreply 07:42:18

• 是，pear tree -心存善念- ♀ (0 bytes) () 12/09/2021 postreply 07:44:02

• 因其花色纯白古诗说梨花多离不开雪 -心存善念- ♀ (389 bytes) () 12/09/2021 postreply 07:53:20

• 我一直觉得这是苹果,与梨花很像啊 -移花接木- ♂ (136 bytes) () 12/09/2021 postreply 09:42:10

• 据说梨花是最白的花 -心存善念- ♀ (0 bytes) () 12/09/2021 postreply 09:50:03

• 涨知识了:) So beautiful yet harmful -甜虫虫- ♀ (0 bytes) () 12/09/2021 postreply 10:02:55

• invasive tree。 -天边一片白云- ♀ (0 bytes) () 12/09/2021 postreply 15:37:07

• 这不是真正的梨树，它结的果子有毒不能吃的 -bia- ♂ (0 bytes) () 12/09/2021 postreply 19:08:55

• 欢迎bia来美坛玩！美坛周五一句话翻译，周三听歌练听力，每月主题活动，都是大家轮流主持，欢迎来玩！边玩边进步！：） -妖妖灵- ♀ (0 bytes) () 12/10/2021 postreply 14:05:37

• 恭喜心善。首页进来，谢谢网管，这些漂亮的梨树令人避之不及 推荐成功 -beautifulwind- ♀ (0 bytes) () 12/09/2021 postreply 21:32:25

• 谢美班！ -心存善念- ♀ (0 bytes) () 12/09/2021 postreply 22:31:00

• 文章说梨树缺点是：1.长的高。长的树杆容易断。照成 -秒秒- ♀ (284 bytes) () 12/10/2021 postreply 02:32:09

• 谢秒秒评论了 -心存善念- ♀ (0 bytes) () 12/10/2021 postreply 05:01:00

• 欢迎秒秒再次来美坛玩！今天有一句话翻译，欢迎来玩！美坛的主题活动很快就公布，欢迎接着参加！还会有颁奖典礼哒！：） -妖妖灵- ♀ (0 bytes) () 12/10/2021 postreply 08:55:00