1.氟磺胺草醚商品名:虎威、福草灵、帅虎、豆来福,主要剂型:16.8%、25%水剂,10%、12.8%、20%乳油。属二苯醚类选择性触杀型除草剂,杂草茎叶及根均可吸收,杂草受害症状为叶片黄化或有枯斑,最后枯萎死亡。氟磺胺草醚主要防除苋、蓼、藜、龙葵、狼巴草、鸭跖草、香薷、小蓟、大蓟、苣荬菜、问荆等。25%氟磺胺草醚水剂在阔叶杂草2~4叶期每亩用药67~100毫升,加333克尿素能提高除草效果。使用氟磺胺草醚应掌握好用药时期。施药过早杂草出苗不齐,对还没出土的杂草起不到杀草作用;施药过晚,杂草抗药性增强,会降低除草效果。一般应在多数杂草2~4叶期并且 1. Fomesafen Trade names: Tiger Granville, Fu grass spirit, handsome tiger, bean blessing, the main dosage form: 16.8%, 25% water, 10%, 12.8%, 20% EC. Is a diphenyl ether selective contact herbicide, weeds stems and roots can be absorbed, weeds damage symptoms of yellow leaves or blight, and finally withered death. Fomesafen main control amaranth, Polygonum, quinoa, Solanum niloticus, Commelina, Commelina, sweet clover, thistle, thistle, endangered vegetables, ask Jing and so on. 25% fomesafen agent in broadleaf weeds 2 to 4 leaves 67 ~ 100 ml per acre medication, add 333 grams of urea can improve the weeding effect. Use fomesafen should have a good medication period. Weeds spraying early emergence of irregular, not unearthed weeds can not play a role in killing grass; spraying too late, weeds increased resistance, will reduce the weeding effect. Generally should be 2-4 weeds in most weeds and