在贵州省六盘水、安顺等地 ,一种叫紫茎泽兰的“毒草”正在迅速蔓延和扩张 ,侵入农业植被 ,占领草场。所到之处 ,就密密实实生长起来 ,使其他植物无法生存。“毒草”的“生态入侵” ,引发了严重的生态危机 ,危害农牧业生产。紫茎泽兰 ,俗名飞机草 ,原产于中美洲 ,2 0世纪 70年? In Liupanshui, Anshun and other places in Guizhou Province, a kind of “poisonous weed” called Eupatorium adenophorum is rapidly spreading and expanding, invading agricultural vegetation and occupying pastures. Wherever you go, it grows densely so that other plants can not survive. The “ecological invasion” of “poisonous weeds” has triggered a serious ecological crisis and endangered the production of agriculture and animal husbandry. Eupatorium adenophorum, common name aircraft grass, native to Central America, 1970s?