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紫茎泽兰是我国重要的外来入侵生物,一旦入侵,就排挤当地物种,很快成为优势种群,在西南地区已对当地的农业、畜牧业,以及生态环境造成严重的破坏。2年的试验和示范结果表明,磺酰脲类除草剂嘧磺隆187.5～375g/hm2(有效成分,下同)、噻吩磺隆375g/hm2、氯嘧磺隆375g/hm2和吡啶类除草剂氨氯吡啶酸1080g/hm2对紫茎泽兰均有优异的防除效果。而2,4滴1500g/hm2、乙羧氟草醚150g/hm2、氟磺胺草醚500g/hm2、咪唑乙烟酸1500g/hm2、嗪草酸甲酯50g/hm2、环嗪酮2500g/hm2、氯草定750～1500g/hm2不能完全杀死紫茎泽兰。针对山区水源短缺,运水不便的的问题,通过在除草剂中加入2L/hm2机油乳油,采用很低容量喷雾法,用水量可由常量喷雾的900～1200L/hm2减少到30～40L/hm2,施药效率较常量喷雾提高8～10倍。此外,还可将除草剂制成颗粒剂或采用毒土法撒施,不需施药器械,且可以节省大量水运输费用。紫茎泽兰用上述除草剂防除后,能选择性地促进非靶标植物的生长。大面积防除2年后,生态恢复率为40%～90%。
Eupatorium adenophorum is an important alien invasive organism in our country. Once invaded, it excludes local species and quickly becomes the dominant species. In the southwestern region, it has caused serious damage to the local agriculture, animal husbandry and ecological environment. Two years of experiments and demonstration results show that the sulfonylurea herbicidal sulfasulfuron 187.5 ~ 375g / hm2 (active ingredient, the same below), thifensulfuron-methyl 375g / hm2, chlorimuron-ethyl 375g / hm2 and pyridine herbicides Clopidogrel 1080g / hm2 Eupatorium have excellent control effect. While 2,4 drops of 1500g / hm2, fenoflurane 150g / hm2, fomesafen 500g / hm2, imazethapyr 1500g / hm2, methyl oxalate 50g / hm2, hexazin 2500g / hm2, ~ 1500g / hm2 can not completely kill the Eupatorium. In view of the problem of shortage of water resources and inconvenient water transportation in mountainous areas, a low volume spraying method is adopted by adding 2L / hm2 machine oil emulsifier to the herbicide and the water consumption can be reduced from 900-1200L / hm2 to 30-40L / hm2 by constant spraying, Application efficiency than the constant spray to improve 8 to 10 times. In addition, herbicides can be granulated or toothache, without application equipment, and can save a lot of water transport costs. Eupatorium adenophorum can selectively promote the growth of non-target plants after being controlled by the above herbicides. After two years of large-scale control, the ecological restoration rate is 40% -90%.