紫茎泽兰是一种有害杂草,由于近年来大量蔓延,在不少地区已直接威胁到农、林、牧业生产。楚雄州委对此十分重视,我们应邀于一九七八年八月中旬选择双柏县受害较重的爱尼山、六合及和平三个公社进行了初步调查,并召开了有关人员参加的座谈会。现将这次调查的材料整理如下。一、形态特征:紫茎泽兰(Eupatorium coelestium L.)群众也常称“飞机草”。飞机草(Fupatorium odoratcm L.)是指我国 Eupatorium adenophorum is a harmful weed, due to the large amount of spread in recent years, it has directly threatened the production of agriculture, forestry and animal husbandry in many areas. Chuxiong State Committee attaches great importance to this. We were invited to mid-August of mid-August to select the heaviest Aisishan, Luhe and Peace communes in Shuangbo County to conduct a preliminary investigation and hold interviews with relevant personnel meeting. The survey materials are now organized as follows. First, the morphological characteristics: Eupatorium Eupatorium (Eupatorium coelestium L.) The masses are often referred to as “aircraft grass.” Aircraft grass (Fupatorium odoratcm L.) refers to our country