江苏丹阳市一读者问:蚕豆田茎叶处理除草剂主要有哪些?在什么时候使用较好?用药时应注意哪些问题?蚕豆田防除看麦娘等禾本科杂草,有多种茎叶处理剂可以使用,如精喹禾灵、高效氟吡甲禾灵(高效盖草能)、精噁唑禾草灵(威霸、骠马)等。一般在田间杂草基本出齐,杂草处于4～5叶期时施药效果较好。杂草草龄较大时应适当增加用量。 A reader in Danyang, Jiangsu Province asks: What are the main herbicides in broad bean stem and leaf treatment? When is it better to use it? What problems should be paid attention to when using it? The broad bean field has many kinds of stem and leaf weeds Agents can be used, such as quizalofop-p-ethyl, high-efficient flumetrytine (high cover grass can), fenoxaprop (Ling Pa, Ge horse) and so on. Basically weeds in the field generally homogeneous, weeds in the 4 to 5 leaves when the application is better. Weeds age should be appropriate to increase dosage.