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近年来,一些地区采用栽根法造林,当幼芽萌发后,往往遭受金龟子和蒙古象鼻虫为害。于4月末至5月初,用带榆树钱的枝条蘸
In recent years, plantation in some areas has been used for afforestation. When young buds germinate, they often suffer from beetles and Mongolian weevils. In late April to early May, dipped in branches with elm money