The effect of Langdujing I herbicide at the level of 1500ml/hm2 was the best in controlling Euphorbia fisheriana and there was not the side effect on the broad leaf grass .

• 狼毒净1号除草剂在1500ml/hm2用药量时对狼毒的防除效果最好,并且对禾草和阔叶牧草没有副作用,在海北有一定推广价值;